{"id":20217,"date":"2025-11-17T22:30:27","date_gmt":"2025-11-17T14:30:27","guid":{"rendered":"https:\/\/viox.com\/?p=20217"},"modified":"2025-11-19T02:33:47","modified_gmt":"2025-11-18T18:33:47","slug":"acb-vs-vcb","status":"publish","type":"post","link":"https:\/\/test.viox.com\/my\/acb-vs-vcb\/","title":{"rendered":"ACB vs VCB: Complete Comparison Guide (IEC Standards 2024)"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u101e\u1004\u103a\u104f 15kV switchgear project \u1021\u1010\u103d\u1000\u103a circuit breaker datasheet \u1014\u103e\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u101e\u1004\u103a\u1000\u103c\u100a\u1037\u103a\u1014\u1031\u1015\u102b\u101e\u100a\u103a\u104b \u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u101e\u100a\u103a 690V \u1021\u1011\u102d \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u101e\u1011\u102c\u1038\u101e\u100a\u103a\u104b \u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1021\u1011\u1004\u103a\u1000\u103c\u102e\u1038\u101c\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1019\u103b\u102c\u1038\u1005\u102c\u101b\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u100a\u103a\u104b \u1005\u102c\u101b\u103d\u1000\u103a\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1021\u1015\u103c\u1014\u103a\u1021\u101c\u103e\u1014\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1015\u102f\u1036\u101b\u101e\u100a\u103a\u104b.<\/p>\n<p>\u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b.<\/p>\n<p>\u1019\u103e\u102c\u1038\u101a\u103d\u1004\u103a\u1038\u1005\u103d\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1015\u102b\u2014Vacuum Circuit Breaker (VCB) \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a Air Circuit Breaker (ACB) \u1000\u102d\u102f \u1010\u1015\u103a\u1006\u1004\u103a\u1015\u102b \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1015\u103c\u1014\u103a\u1021\u101c\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a\u2014\u101e\u1004\u103a\u101e\u100a\u103a IEC \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u102f\u1038\u1016\u1031\u102c\u1000\u103a\u101b\u102f\u1036\u101e\u102c\u1019\u1000\u1015\u102b\u104b \u101e\u1004\u103a\u101e\u100a\u103a arc flash \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u104a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1018\u1010\u103a\u1002\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1010\u102d\u102f\u1037\u1014\u103e\u1004\u1037\u103a \u101c\u1031\u102c\u1004\u103a\u1038\u1000\u1005\u102c\u1038\u1014\u1031\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1010\u1000\u101a\u1037\u103a\u1001\u103c\u102c\u1038\u1014\u102c\u1038\u1001\u103b\u1000\u103a\u1019\u103e\u102c \u1005\u103b\u1031\u1038\u1000\u103d\u1000\u103a\u101b\u103e\u102c\u1016\u103d\u1031\u101b\u1031\u1038\u101c\u1000\u103a\u1000\u1019\u103a\u1038\u1005\u102c\u1005\u1031\u102c\u1004\u103a\u1010\u103d\u1004\u103a \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a arc \u1010\u1005\u103a\u1001\u102f\u1005\u102e\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101e\u100a\u103a\u101f\u1030\u101e\u1031\u102c \u101b\u1030\u1015\u1017\u1031\u1012\u1010\u103d\u1004\u103a \u1010\u100a\u103a\u101b\u103e\u102d\u1015\u103c\u102e\u1038 \u1011\u102d\u102f\u101b\u1030\u1015\u1017\u1031\u1012\u101e\u100a\u103a \u1001\u1000\u103a\u1001\u1032\u101e\u1031\u102c <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038<\/strong> datasheet \u101b\u103e\u1004\u103a\u1038\u101c\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1000 \u1015\u101a\u103a\u1016\u103b\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b.<\/p>\n<p>\u1024\u1010\u103d\u1004\u103a ACBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f VCBs \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1011\u102c\u1038\u101e\u100a\u1037\u103a\u1021\u101b\u102c\u2014\u101e\u1004\u103a\u104f\u1005\u1014\u1005\u103a\u1021\u1010\u103d\u1000\u103a \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c\u1021\u101b\u102c\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u101b\u1019\u100a\u103a\u1014\u100a\u103a\u1038\u104b.<\/p>\n<hr \/>\n<h2>\u1021\u1019\u103c\u1014\u103a\u1021\u1016\u103c\u1031- ACB \u1014\u103e\u1004\u1037\u103a VCB \u1021\u102c\u1038 \u1010\u1005\u103a\u1001\u103b\u1000\u103a\u1000\u103c\u100a\u1037\u103a\u1001\u103c\u1004\u103a\u1038<\/h2>\n<p><strong>\u1021\u1013\u102d\u1000\u1001\u103c\u102c\u1038\u1014\u102c\u1038\u1001\u103b\u1000\u103a-<\/strong> <a href=\"https:\/\/test.viox.com\/my\/complete-guide-to-air-circuit-breakers-acb\/\">Air Circuit Breakers (ACBs)<\/a> \u101c\u1031\u1011\u102f\u1011\u1032\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a arcs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1015\u103c\u102e\u1038 \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>1,000V AC \u1021\u1011\u102d \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong> (IEC 60947-2:2024 \u1016\u103c\u1004\u1037\u103a \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u103a)\u104b Vacuum Circuit Breakers (VCBs) \u101e\u100a\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1010\u103d\u1004\u103a arcs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1015\u103c\u102e\u1038 \u101c\u100a\u103a\u1015\u1010\u103a\u101e\u100a\u103a\u104b <strong>11kV \u1019\u103e 33kV \u1021\u1011\u102d \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong> (IEC 62271-100:2021 \u1016\u103c\u1004\u1037\u103a \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u103a)\u104b \u1024\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u103d\u1032\u1015\u103c\u102c\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u1011\u102f\u1010\u103a\u1000\u102f\u1014\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103d\u1032\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u2014\u104e\u1004\u103a\u1038\u101e\u100a\u103a arc \u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u104f \u101b\u1030\u1015\u1017\u1031\u1012\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1024\u1010\u103d\u1004\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1015\u1031\u102b\u103a \u1019\u100a\u103a\u101e\u102d\u102f\u1037 \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1011\u102c\u1038\u101e\u100a\u103a-<\/p>\n<table border=\"\">\n<tbody>\n<tr>\n<td><strong>\u1021\u1004\u1039\u1010\u102c\u1014\u1000\u1039\u1005\u102c\u1019\u103a\u1000\u1039\u108f\u103d\u102c<\/strong><\/td>\n<td><strong>Air Circuit Breaker (ACB)<\/strong><\/td>\n<td><strong>Vacuum Circuit Breaker (VCB)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038<\/strong><\/td>\n<td>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038- 400V \u1019\u103e 1,000V AC<\/td>\n<td>\u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038- 11kV \u1019\u103e 33kV (\u1021\u1001\u103b\u102d\u102f\u1037 1kV-38kV)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u101c\u1000\u103a\u101b\u103e\u102d \u1021\u1010\u102d\u102f\u1004\u103a\u1038\u1021\u1010\u102c<\/strong><\/td>\n<td>\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038- 800A \u1019\u103e 10,000A<\/td>\n<td>\u101e\u1004\u1037\u103a\u1010\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u1000\u103a\u1015\u1010\u103a\u101e\u1031\u102c\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038- 600A \u1019\u103e 4,000A<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1031\u1006\u1038\u1031\u107e<\/strong><\/td>\n<td>690V \u1010\u103d\u1004\u103a 100kA \u1021\u1011\u102d<\/td>\n<td>MV \u1010\u103d\u1004\u103a 25kA \u1019\u103e 50kA<\/td>\n<\/tr>\n<tr>\n<td><strong>Arc \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101e\u100a\u1037\u103a\u1000\u103c\u102c\u1038\u1001\u1036<\/strong><\/td>\n<td>\u101c\u1031\u1011\u102f\u1016\u102d\u1021\u102c\u1038\u101b\u103e\u102d \u101c\u1031<\/td>\n<td>\u101c\u1031\u101f\u102c\u1014\u101a\u103a (10^-2 \u1019\u103e 10^-6 torr)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f \u101a\u1014\u1039\u1010\u101b\u102c\u1038<\/strong><\/td>\n<td>Arc chutes \u1019\u103b\u102c\u1038\u101e\u100a\u103a arc \u1000\u102d\u102f \u101b\u103e\u100a\u103a\u1005\u1031\u1015\u103c\u102e\u1038 \u1021\u1031\u1038\u1005\u1031\u101e\u100a\u103a\u104b<\/td>\n<td>\u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u1005\u1000\u103a\u101e\u100a\u103a \u1015\u1011\u1019\u1006\u102f\u1036\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u102f\u100a\u1010\u103d\u1004\u103a arc \u1000\u102d\u102f \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1000\u103c\u102d\u1019\u103a\u101b\u1031<\/strong><\/td>\n<td>\u1046 \u101c\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a (\u1010\u1005\u103a\u1014\u103e\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u1014\u103e\u1005\u103a\u1000\u103c\u102d\u1019\u103a)<\/td>\n<td>\u1043 \u1014\u103e\u1005\u103a\u1019\u103e \u1045 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a<\/td>\n<\/tr>\n<tr>\n<td><strong>Contact \u101e\u1000\u103a\u1010\u1019\u103a\u1038<\/strong><\/td>\n<td>\u1043 \u1014\u103e\u1005\u103a\u1019\u103e \u1045 \u1014\u103e\u1005\u103a (\u101c\u1031\u1014\u103e\u1004\u1037\u103a\u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1001\u103c\u1004\u103a\u1038)<\/td>\n<td>\u1042\u1040 \u1014\u103e\u1005\u103a\u1019\u103e \u1043\u1040 \u1014\u103e\u1005\u103a (\u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1015\u1036\u102f\u1019\u103d\u1014\u1039\u1021\u101e\u1036\u102f\u1038\u1001\u103a\u103b\u1001\u1004\u1039\u1038<\/strong><\/td>\n<td>LV \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u104a MCCs\u104a PCCs\u104a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a\/\u1005\u1000\u103a\u1019\u103e\u102f\u1021\u1000\u1014\u1037\u103a\u1019\u103b\u102c\u1038<\/td>\n<td>MV switchgear\u104a utility substations\u104a HV \u1019\u1031\u102c\u103a\u1010\u102c\u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038<\/td>\n<\/tr>\n<tr>\n<td><strong>IEC \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038<\/strong><\/td>\n<td>IEC 60947-2:2024 (\u22641000V AC)<\/td>\n<td>IEC 62271-100:2021+A1:2024 (&gt;1000V)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1000\u1014\u1026\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a<\/strong><\/td>\n<td>\u1014\u102d\u1019\u1037\u103a\u101e\u100a\u103a ($8K-$15K \u1015\u102f\u1036\u1019\u103e\u1014\u103a)<\/td>\n<td>\u1019\u103c\u1004\u1037\u103a\u101e\u100a\u103a ($20K-$30K \u1015\u102f\u1036\u1019\u103e\u1014\u103a)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1041\u1045 \u1014\u103e\u1005\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a<\/strong><\/td>\n<td>~$48K (\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030)<\/td>\n<td>~$24K (\u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>1,000V \u1010\u103d\u1004\u103a \u101e\u1014\u1037\u103a\u101b\u103e\u1004\u103a\u1038\u101e\u1031\u102c \u1019\u103b\u1009\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101e\u1010\u102d\u1015\u103c\u102f\u1015\u102b\u104b \u1012\u102b\u1000 <strong>\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u1001\u103d\u1032\u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>\u2014\u1014\u103e\u1004\u1037\u103a \u104e\u1004\u103a\u1038\u101e\u100a\u103a 1kV \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u1010\u100a\u103a\u101b\u103e\u102d\u1014\u1031\u101e\u100a\u103a\u104a \u101c\u1031\u101e\u100a\u103a arc \u1000\u102d\u102f \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u1005\u103d\u102c \u1019\u103c\u1014\u103a\u1006\u1014\u103a\u1005\u103d\u102c \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1019\u101b\u103e\u102d\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101b\u1030\u1015\u1017\u1031\u1012\u101e\u100a\u103a \u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u100a\u103a\u104b IEC \u1000 \u104e\u1004\u103a\u1038\u1000\u102d\u102f \u1005\u1014\u1005\u103a\u1010\u1000\u103b \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1001\u1032\u1037\u101e\u100a\u103a\u104b.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-20221\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Structural-comparison-of-ACB-and-VCB-technologies.webp\" alt=\"You're staring at two circuit breaker datasheets for your 15kV switchgear project. Both show voltage ratings up to 690V. Both list impressive breaking capacities. On paper, they look interchangeable.They're not.Choose wrong\u2014install an Air Circuit Breaker (ACB) where you need a Vacuum Circuit Breaker (VCB), or vice versa\u2014and you're not just violating IEC standards. You're gambling with arc flash risk, maintenance budgets, and equipment lifespan. The real difference isn't in the marketing brochure. It's in the physics of how each breaker extinguishes an electrical arc, and that physics imposes a hard Voltage Ceiling that no datasheet disclaimer can override.Here's what actually separates ACBs from VCBs\u2014and how to choose the right one for your system.Quick Answer: ACB vs VCB at a GlanceThe core difference: Air Circuit Breakers (ACBs) quench electrical arcs in atmospheric air and are designed for low-voltage systems up to 1,000V AC (governed by IEC 60947-2:2024). Vacuum Circuit Breakers (VCBs) extinguish arcs in a sealed vacuum environment and operate in medium-voltage systems from 11kV to 33kV (governed by IEC 62271-100:2021). This voltage split isn't a product segmentation choice\u2014it's dictated by the physics of arc interruption.Here's how they compare across critical specifications:SpecificationAir Circuit Breaker (ACB)Vacuum Circuit Breaker (VCB)Voltage RangeLow voltage: 400V to 1,000V ACMedium voltage: 11kV to 33kV (some 1kV-38kV)Current RangeHigh current: 800A to 10,000AModerate current: 600A to 4,000ABreaking CapacityUp to 100kA at 690V25kA to 50kA at MVArc Quenching MediumAir at atmospheric pressureVacuum (10^-2 to 10^-6 torr)Operating MechanismArc chutes lengthen and cool the arcSealed vacuum interrupter quenches arc at first current zeroMaintenance FrequencyEvery 6 months (twice yearly)Every 3 to 5 yearsContact Lifespan3 to 5 years (air exposure causes erosion)20 to 30 years (sealed environment)Typical ApplicationsLV distribution, MCCs, PCCs, commercial\/industrial panelsMV switchgear, utility substations, HV motor protectionIEC StandardIEC 60947-2:2024 (\u22641000V AC)IEC 62271-100:2021+A1:2024 (&gt;1000V)Initial CostLower ($8K-$15K typical)Higher ($20K-$30K typical)15-Year Total Cost~$48K (with maintenance)~$24K (minimal maintenance)Notice the clean dividing line at 1,000V? That's The Standards Split\u2014and it exists because above 1kV, air simply can't extinguish an arc fast enough. Physics sets the boundary; IEC just codified it.\u00a0Figure 1: Structural comparison of ACB and VCB technologies. The ACB (left) uses arc chutes in open air, while the VCB (right) employs a sealed vacuum interrupter for arc extinction.Arc Quenching: Air vs Vacuum (Why Physics Sets the Voltage Ceiling)When you separate current-carrying contacts under load, an arc forms. Always. That arc is a plasma column\u2014ionized gas conducting thousands of amperes at temperatures reaching 20,000\u00b0C (hotter than the surface of the sun). Your circuit breaker's job is to extinguish that arc before it welds the contacts together or triggers an arc flash event.How it does that depends entirely on the medium surrounding the contacts.How ACBs Use Air and Arc ChutesAn Air Circuit Breaker interrupts the arc in atmospheric air. The breaker's contacts are housed in arc chutes\u2014arrays of metal plates positioned to intercept the arc as the contacts separate. Here's the sequence:Arc formation: Contacts separate, arc strikes in airArc lengthening: Magnetic forces drive the arc into the arc chuteArc division: The chute's metal plates split the arc into multiple shorter arcsArc cooling: Increased surface area and air exposure cool the plasmaArc extinction: As the arc cools and lengthens, resistance increases until the arc can no longer sustain itself at the next current zeroThis works reliably up to about 1,000V. Above that voltage, the arc's energy is too great. Air's dielectric strength (the voltage gradient it can withstand before breaking down) is approximately 3 kV\/mm at atmospheric pressure. Once system voltage climbs into the multi-kilovolt range, the arc simply re-strikes across the widening contact gap. You can't build an arc chute long enough to stop it without making the breaker the size of a small car.That's The Voltage Ceiling.How VCBs Use Vacuum PhysicsA Vacuum Circuit Breaker takes a completely different approach. The contacts are enclosed in a sealed vacuum interrupter\u2014a chamber evacuated to a pressure between 10^-2 and 10^-6 torr (that's roughly one-millionth of atmospheric pressure).When the contacts separate under load:Arc formation: Arc strikes in the vacuum gapLimited ionization: With almost no gas molecules present, the arc lacks sustaining mediumRapid de-ionization: At the first natural current zero (every half-cycle in AC), there are insufficient charge carriers to re-strike the arcInstant extinction: Arc dies within one cycle (8.3 milliseconds on a 60 Hz system)The vacuum provides two massive advantages. First, dielectric strength: a vacuum gap of just 10mm can withstand voltages up to 40kV\u2014that's 10 to 100 times stronger than air at the same gap distance. Second, contact preservation: with no oxygen present, the contacts don't oxidize or erode at the same rate as ACB contacts exposed to air. That's The Sealed-for-Life Advantage.VCB contacts in a properly maintained breaker can last 20 to 30 years. ACB contacts exposed to atmospheric oxygen and arc plasma? You're looking at replacement every 3 to 5 years, sometimes sooner in dusty or humid environments.Figure 2: Arc quenching mechanisms. The ACB requires multiple steps to lengthen, divide, and cool the arc in air (left), while the VCB extinguishes the arc instantly at the first current zero due to vacuum's superior dielectric strength (right).Pro-Tip #1: The Voltage Ceiling isn't negotiable. ACBs are physically incapable of reliably interrupting arcs above 1kV in air at atmospheric pressure. If your system voltage exceeds 1,000V AC, you need a VCB\u2014not as a &quot;better&quot; option, but as the only option that complies with physics and IEC standards.Voltage and Current Ratings: What the Numbers Really MeanVoltage isn't just a specification line on the datasheet. It's the fundamental selection criterion that determines which breaker type you can even consider. Current rating matters, but it comes second.Here's what the numbers mean in practice.ACB Ratings: High Current, Low VoltageVoltage ceiling: ACBs operate reliably from 400V up to 1,000V AC (with some specialized designs rated to 1,500V DC). The typical sweet spot is 400V or 690V for three-phase industrial systems. Above 1kV AC, air's dielectric properties make reliable arc interruption impractical\u2014that Voltage Ceiling we discussed isn't a design limitation; it's a physical boundary.Current capacity: Where ACBs dominate is current handling. Ratings range from 800A for smaller distribution panels up to 10,000A for main service entrance applications. High current capability at low voltage is precisely what low-voltage distribution needs\u2014think motor control centers (MCCs), power control centers (PCCs), and main distribution boards in commercial and industrial facilities.Breaking capacity: Short-circuit interrupting ratings reach up to 100kA at 690V. That sounds impressive\u2014and it is, for low-voltage applications. But let's put it in perspective with a power calculation:Breaking capacity: 100kA at 690V (line-to-line)Apparent power: \u221a3 \u00d7 690V \u00d7 100kA \u2248 119 MVAThat's the maximum fault power an ACB can safely interrupt. For a 400V\/690V industrial plant with a 1.5 MVA transformer and typical X\/R ratios, a 65kA breaker is often sufficient. The 100kA units are reserved for utility-scale low-voltage distribution or facilities with multiple large transformers in parallel.Typical applications:Low-voltage main distribution panels (LVMDP)Motor control centers (MCCs) for pumps, fans, compressorsPower control centers (PCCs) for industrial machineryGenerator protection and synchronization panelsCommercial building electrical rooms (below 1kV)VCB Ratings: Medium Voltage, Moderate CurrentVoltage range: VCBs are engineered for medium-voltage systems, typically from 11kV to 33kV. Some designs extend the range down to 1kV or up to 38kV (the 2024 amendment to IEC 62271-100 added standardized ratings at 15.5kV, 27kV, and 40.5kV). The sealed vacuum interrupter's superior dielectric strength makes these voltage levels manageable within a compact footprint.Current capacity: VCBs handle moderate currents compared to ACBs, with typical ratings from 600A to 4,000A. This is perfectly adequate for medium-voltage applications. A 2,000A breaker at 11kV can carry 38 MVA of continuous load\u2014equivalent to several dozen large industrial motors or an entire medium-sized industrial facility's power demand.Breaking capacity: VCBs are rated from 25kA to 50kA at their respective voltage levels. Let's run the same power calculation for a 50kA VCB at 33kV:Breaking capacity: 50kA at 33kV (line-to-line)Apparent power: \u221a3 \u00d7 33kV \u00d7 50kA \u2248 2,850 MVAThat's 24 times more interrupting power than our 100kA ACB at 690V. Suddenly, that &quot;lower&quot; 50kA breaking capacity doesn't look so modest. VCBs are interrupting fault currents at power levels that would vaporize an ACB's arc chute.Figure 3: The Voltage Ceiling visualization. ACBs operate reliably up to 1,000V but cannot safely interrupt arcs above this threshold (red zone), while VCBs dominate the medium-voltage range from 11kV to 38kV (green zone).Typical applications:Utility distribution substations (11kV, 22kV, 33kV)Industrial medium-voltage switchgear (ring main units, switchboards)High-voltage induction motor protection (&gt;1,000 HP)Transformer primary protectionPower generation facilities (generator circuit breakers)Renewable energy systems (wind farms, solar inverter stations)Pro-Tip #2: Don't compare breaking capacity in kiloamperes alone. Calculate the MVA interrupting power (\u221a3 \u00d7 voltage \u00d7 current). A 50kA VCB at 33kV interrupts vastly more power than a 100kA ACB at 690V. Voltage matters more than current when assessing breaker capability.The Standards Split: IEC 60947-2 (ACB) vs IEC 62271-100 (VCB)The International Electrotechnical Commission (IEC) doesn't casually divide standards. When IEC 60947-2 governs breakers up to 1,000V and IEC 62271-100 takes over above 1,000V, that boundary reflects the physical reality we've been discussing. This is The Standards Split, and it's your design compass.IEC 60947-2:2024 for Air Circuit BreakersScope: This standard applies to circuit-breakers with rated voltage not exceeding 1,000V AC or 1,500V DC. It's the authoritative reference for low-voltage circuit protection, including ACBs, molded-case circuit breakers (MCCBs), and miniature circuit breakers (MCBs).The sixth edition was published in September 2024, superseding the 2016 edition. Key updates include:Suitability for isolation: Clarified requirements for using circuit-breakers as isolating switchesClassification removal: IEC eliminated the classification of breakers by interrupting medium (air, oil, SF6, etc.). Why? Because voltage already tells you the medium. If you're at 690V, you're using air or a sealed molded case. The old classification system was redundant.External device adjustments: New provisions for adjusting overcurrent settings via external devicesEnhanced testing: Added tests for ground-fault releases and dielectric properties in the tripped positionEMC improvements: Updated electromagnetic compatibility (EMC) test procedures and power loss measurement methodsThe 2024 revision makes the standard cleaner and more aligned with modern digital trip units and smart breaker technology, but the core voltage boundary\u2014\u22641,000V AC\u2014remains unchanged. Above that, you're out of IEC 60947-2's jurisdiction.IEC 62271-100:2021 (Amendment 1: 2024) for Vacuum Circuit BreakersScope: This standard governs alternating current circuit-breakers designed for three-phase systems with voltages above 1,000V. It's specifically tailored for medium-voltage and high-voltage indoor and outdoor switchgear, where VCBs are the dominant technology (alongside SF6 breakers for the highest voltage classes).The third edition was published in 2021, with Amendment 1 released in August 2024. Recent updates include:Updated TRV (Transient Recovery Voltage) values: Recalculated TRV parameters in multiple tables to reflect real-world system behavior and newer transformer designsNew rated voltages: Standardized ratings added at 15.5kV, 27kV, and 40.5kV to cover regional system voltages (particularly in Asia and the Middle East)Revised terminal fault definition: Clarified what constitutes a terminal fault for testing purposesDielectric test criteria: Added criteria for dielectric testing; explicitly stated that partial discharge tests apply only to GIS (Gas-Insulated Switchgear) and dead-tank breakers, not typical VCBsEnvironmental considerations: Enhanced guidance on altitude, pollution, and temperature derating factorsThe 2024 amendment keeps the standard current with global grid infrastructure changes, but the fundamental principle holds: above 1,000V, you need a medium-voltage breaker, and for the 1kV-38kV range, that almost always means a VCB.Why These Standards Don't OverlapThe 1,000V boundary isn't arbitrary. It's the point where atmospheric air transitions from &quot;adequate arc quenching medium&quot; to &quot;liability.&quot; IEC didn't create two standards to sell more books. They formalized the engineering reality:Below 1kV: Air-based or molded-case designs work. Arc chutes are effective. Breakers are compact and economical.Above 1kV: Air requires impractically large arc chutes; vacuum (or SF6 for higher voltages) becomes necessary for safe, reliable arc interruption in a reasonable footprint.When you're speccing a breaker, the first question isn't &quot;ACB or VCB?&quot; It's &quot;What's my system voltage?&quot; That answer points you to the correct standard, which points you to the correct breaker type.Pro-Tip #3: When reviewing a circuit breaker datasheet, check which IEC standard it complies with. If it lists IEC 60947-2, it's a low-voltage breaker (\u22641kV). If it lists IEC 62271-100, it's a medium\/high-voltage breaker (&gt;1kV). The standard compliance tells you the voltage class instantly.Applications: Matching Breaker Type to Your SystemChoosing between ACB and VCB isn't about preference. It's about matching the breaker's physical capabilities to your system's electrical characteristics and operational requirements.Here's how to map breaker type to application.When to Use ACBsAir Circuit Breakers are the right choice for low-voltage distribution systems where high current capacity matters more than compact size or long maintenance intervals.Ideal applications:400V or 690V three-phase distribution: The backbone of most industrial and commercial electrical systemsMotor Control Centers (MCCs): Protection for pumps, fans, compressors, conveyors, and other low-voltage motorsPower Control Centers (PCCs): Main distribution for industrial machinery and process equipmentLow-voltage main distribution panels (LVMDP): Service entrance and main breakers for buildings and facilitiesGenerator protection: Low-voltage backup generators (typically 480V or 600V)Marine and offshore: Low-voltage ship power distribution (where IEC 60092 also applies)When ACBs make sense financially:Lower initial cost priority: If capital budget is constrained and you have in-house maintenance capabilityHigh current requirements: When you need 6,000A+ ratings that are more economical in ACB form factorsRetrofit into existing LV switchgear: When replacing like-for-like in panels designed for ACBsLimitations to remember:Maintenance burden: Expect inspections every 6 months and contact replacement every 3-5 yearsFootprint: ACBs are larger and heavier than equivalent VCBs due to arc chute assembliesNoise: Arc interruption in air is louder than in a sealed vacuumLimited service life: Typically 10,000 to 15,000 operations before major overhaulWhen to Use VCBsVacuum Circuit Breakers dominate medium-voltage applications where reliability, low maintenance, compact size, and long service life justify the higher initial cost.Ideal applications:11kV, 22kV, 33kV utility substations: Primary and secondary distribution switchgearIndustrial MV switchgear: Ring main units (RMUs), metal-clad switchboards, pad-mounted transformersHigh-voltage motor protection: Induction motors above 1,000 HP (typically 3.3kV, 6.6kV, or 11kV)Transformer protection: Primary-side breakers for distribution and power transformersPower generation facilities: Generator circuit breakers, station auxiliary powerRenewable energy systems: Wind farm collector circuits, solar inverter step-up transformersMining and heavy industry: Where dust, moisture, and harsh conditions make ACB maintenance problematicWhen VCBs are the only option:System voltage &gt;1kV AC: Physics and IEC 62271-100 require medium-voltage rated breakersFrequent switching operations: VCBs are rated for 30,000+ mechanical operations (some designs exceed 100,000 operations)Limited maintenance access: Remote substations, offshore platforms, rooftop installations where semi-annual ACB inspections are impracticalLong lifecycle cost focus: When total cost of ownership over 20-30 years outweighs upfront capital costAdvantages in harsh environments:Sealed vacuum interrupters aren't affected by dust, humidity, salt spray, or altitude (up to derating limits)No arc chutes to clean or replaceSilent operation (important for indoor substations in occupied buildings)Compact footprint (critical in urban substations with expensive real estate)Decision Matrix: ACB or VCB?Your System CharacteristicsRecommended Breaker TypePrimary ReasonVoltage \u2264 1,000V ACACBIEC 60947-2 jurisdiction; air quenching is adequateVoltage &gt; 1,000V ACVCBIEC 62271-100 required; air cannot reliably interrupt arcHigh current (&gt;5,000A) at LVACBMore economical for very high current at low voltageFrequent switching (&gt;20\/day)VCBRated for 30,000+ operations vs ACB's 10,000Harsh environment (dust, salt, humidity)VCBSealed interrupter unaffected by contaminationLimited maintenance accessVCB3-5 year service intervals vs ACB's 6-month schedule20+ year lifecycle cost focusVCBLower TCO despite higher initial costTight space constraintsVCBCompact design; no arc chute volumeBudget-constrained capital projectACB (if \u22641kV)Lower upfront cost, but factor in maintenance budgetFigure 5: Circuit breaker selection flowchart. System voltage is the primary decision criterion, directing you to either ACB (low-voltage) or VCB (medium-voltage) applications based on the 1,000V boundary.Pro-Tip #4: If your system voltage is anywhere near the 1kV boundary, spec a VCB. Don't try to stretch an ACB to its maximum voltage rating. The Voltage Ceiling isn't a &quot;rated maximum&quot;\u2014it's a hard physics limit. Design with margin.The Maintenance Tax: Why VCBs Cost Less Over 20 YearsThat $15,000 ACB looks attractive compared to a $25,000 VCB. Until you run the numbers over 15 years.Welcome to The Maintenance Tax\u2014the hidden recurring cost that flips the economic equation.ACB Maintenance: The Twice-Yearly BurdenAir Circuit Breakers demand regular, hands-on maintenance because their contacts and arc chutes operate in an open-air environment. Here's the typical maintenance schedule recommended by manufacturers and IEC 60947-2:Every 6 months (semi-annual inspection):Visual inspection of contacts for pitting, erosion, or discolorationArc chute cleaning (removal of carbon deposits and metal vapor residue)Contact gap and wipe measurementMechanical operation test (manual and automatic)Terminal connection torque checkLubrication of moving parts (hinges, linkages, bearings)Overcurrent trip unit functional testEvery 3-5 years (major service):Contact replacement (if erosion exceeds manufacturer limits)Arc chute inspection and replacement if damagedInsulation resistance testing (megger test)Contact resistance measurementComplete disassembly and cleaningReplacement of worn mechanical componentsCost breakdown (typical, varies by region):Semi-annual inspection: $600-$1,000 per breaker (contractor labor: 3-4 hours)Contact replacement: $2,500-$4,000 (parts + labor)Arc chute replacement: $1,500-$2,500 (if damaged)Emergency service call (if breaker fails between inspections): $1,500-$3,000For an ACB with a 15-year service life:Semi-annual inspections: 15 years \u00d7 2 inspections\/year \u00d7 $800 average = $24,000Contact replacements: (15 years \u00f7 4 years) \u00d7 $3,000 = $9,000 (3 replacements)Unplanned failures: Assume 1 failure \u00d7 $2,000 = $2,000Total maintenance over 15 years: $35,000Add the initial purchase cost ($15,000), and your 15-year total cost of ownership is ~$50,000.That's the Maintenance Tax. You pay it in labor hours, downtime, and consumable parts\u2014every year, twice a year, for the life of the breaker.VCB Maintenance: The Sealed-for-Life AdvantageVacuum Circuit Breakers flip the maintenance equation. The sealed vacuum interrupter protects the contacts from oxidation, contamination, and environmental exposure. Result: drastically extended service intervals.Every 3-5 years (periodic inspection):Visual external inspectionMechanical operation count check (via counter or digital interface)Contact wear indicator check (some VCBs have external indicators)Operational test (open\/close cycles)Control circuit functional testTerminal connection inspectionEvery 10-15 years (major inspection, if at all):Vacuum integrity test (using high-voltage test or X-ray inspection)Contact gap measurement (requires partial disassembly on some models)Insulation resistance testingNotice what's not on the list:No contact cleaning (sealed environment)No arc chute maintenance (doesn't exist)No semi-annual inspections (unnecessary)No routine contact replacement (20-30 year lifespan)Cost breakdown (typical):Periodic inspection (every 4 years): $400-$700 per breaker (contractor labor: 1.5-2 hours)Vacuum interrupter replacement (if needed after 20-25 years): $6,000-$10,000For a VCB with the same 15-year evaluation period:Periodic inspections: (15 years \u00f7 4 years) \u00d7 $500 average = $1,500 (3 inspections)Unplanned failures: Extremely rare; assume $0 (VCBs have 10x lower failure rate)Major overhaul: Not required within 15 yearsTotal maintenance over 15 years: $1,500Add the initial purchase cost ($25,000), and your 15-year total cost of ownership is ~$26,500.The TCO Crossover PointLet's put them side-by-side:Cost ComponentACB (15 years)VCB (15 years)Initial purchase$15,000$25,000Routine maintenance$24,000$1,500Contact\/component replacement$9,000$0Unplanned failures$2,000$0Total Cost of Ownership$50,000$26,500Cost per year$3,333\/year$1,767\/yearThe VCB pays for itself through maintenance savings alone. But here's the kicker: the crossover happens around year 3.Year 0: ACB = $15K, VCB = $25K (ACB ahead by $10K)Year 1.5: First 3 ACB inspections = $2,400; VCB = $0 (ACB ahead by $7,600)Year 3: Six ACB inspections = $4,800; VCB = $0 (ACB ahead by $5,200)Year 4: First ACB contact replacement + 8 inspections = $9,400; VCB first inspection = $500 (ACB ahead by $900)Year 5: ACB total maintenance = $12,000; VCB = $500 (VCB starts saving money)Year 15: ACB total = $50K; VCB total = $26.5K (VCB saves $23,500)Figure 4: 15-Year Total Cost of Ownership (TCO) analysis. Despite higher initial cost, VCBs become more economical than ACBs by Year 3 due to dramatically lower maintenance requirements, saving $23,500 over 15 years.If you plan to keep the switchgear for 20 years (typical for industrial facilities), the savings gap widens to $35,000+ per breaker. For a substation with 10 breakers, that's $350,000 in lifecycle savings.Hidden Costs Beyond the InvoiceThe TCO calculation above only captures direct costs. Don't forget:Downtime risk:ACB failures between inspections can cause unplanned outagesVCB failures are rare (MTBF often exceeds 30 years with proper use)Labor availability:Finding qualified technicians for ACB maintenance is getting harder as the industry shifts to VCBsSemi-annual maintenance windows require production downtime or careful schedulingSafety:ACB arc flash incidents during maintenance are more common than VCB incidents (open-air contacts vs sealed interrupter)Arc flash PPE requirements are more stringent for ACB maintenanceEnvironmental factors:ACBs in dusty, humid, or corrosive environments need more frequent maintenance (quarterly instead of semi-annual)VCBs are unaffected\u2014the sealed interrupter doesn't care about external conditionsPro-Tip #5 (The Big One): Calculate total cost of ownership over the expected switchgear lifespan (15-25 years), not just initial capital cost. For medium-voltage applications, VCBs almost always win on TCO. For low-voltage applications where you must use an ACB, budget $2,000-$3,000 per year per breaker for maintenance\u2014and don't let the maintenance schedule slip. Skipped inspections turn into catastrophic failures.Frequently Asked Questions: ACB vs VCBQ: Can I use an ACB above 1,000V if I derate it or add external arc suppression?A: No. The 1,000V limit for ACBs isn't a thermal or electrical stress issue that derating can solve\u2014it's a fundamental arc physics limitation. Above 1kV, atmospheric air cannot reliably quench an arc within safe timeframes, regardless of how you configure the breaker. IEC 60947-2 explicitly scopes ACBs to \u22641,000V AC, and operating outside that scope violates the standard and creates arc flash hazards. If your system is above 1kV, you legally and safely must use a medium-voltage breaker (VCB or SF6 breaker per IEC 62271-100).Q: Are VCBs more expensive to repair than ACBs if something goes wrong?A: Yes, but VCBs fail far less frequently. When a VCB vacuum interrupter fails (rare), it typically requires factory replacement of the entire sealed unit at $6,000-$10,000. ACB contacts and arc chutes can be serviced in the field for $2,500-$4,000, but you'll replace them 3-4 times over the VCB's lifespan. The math still favors VCBs: one VCB interrupter replacement in 25 years vs. three ACB contact replacements in 15 years, plus the ongoing Maintenance Tax every six months.Q: Which breaker type is better for frequent switching (capacitor banks, motor starting)?A: VCBs by a wide margin. Vacuum circuit breakers are rated for 30,000 to 100,000+ mechanical operations before major overhaul. ACBs are typically rated for 10,000 to 15,000 operations. For applications involving frequent switching\u2014such as capacitor bank switching, motor starting\/stopping in batch processes, or load transfer schemes\u2014VCBs will outlast ACBs by 3:1 to 10:1 in operation count. Additionally, VCBs' fast arc extinction (one cycle) reduces the stress on downstream equipment during each switching event.Q: Do VCBs have any drawbacks compared to ACBs beyond initial cost?A: Three minor considerations: (1) Overvoltage risk when switching capacitive or inductive loads\u2014VCBs' fast arc extinction can produce transient overvoltages that may require surge arresters or RC snubbers for sensitive loads. (2) Repair complexity\u2014if a vacuum interrupter fails, you can't fix it in the field; the entire unit must be replaced. (3) Audible hum\u2014some VCB designs produce low-frequency hum from the operating mechanism, though this is far quieter than ACB arc blast. For 99% of applications, these drawbacks are negligible compared to the advantages (see Sealed-for-Life Advantage section).Q: Can I retrofit a VCB into existing ACB switchgear panels?A: Sometimes, but not always. VCBs are more compact than ACBs, so physical space is rarely a problem. The challenges are: (1) Mounting dimensions\u2014ACB and VCB mounting hole patterns differ; you may need adapter plates. (2) Busbar configuration\u2014VCB terminals may not align with existing ACB busbars without modification. (3) Control voltage\u2014VCB operating mechanisms may require different control power (e.g., 110V DC vs 220V AC). (4) Protection coordination\u2014changing breaker types can alter short-circuit clearing times and coordination curves. Always consult with the switchgear manufacturer or a qualified electrical engineer before retrofitting. New installations should specify VCBs for medium-voltage and ACBs (or MCCBs) for low-voltage from the start.Q: Why don't manufacturers make ACBs for medium voltage (11kV, 33kV)?A: They tried. Medium-voltage ACBs existed in the mid-20th century, but they were enormous\u2014room-sized breakers with arc chutes several meters long. Air's relatively low dielectric strength (~3 kV\/mm) meant that a 33kV breaker needed contact gaps and arc chutes measured in meters, not millimeters. The size, weight, maintenance burden, and fire risk made them impractical. Once vacuum interrupter technology matured in the 1960s-1970s, medium-voltage ACBs were obsoleted. Today, vacuum and SF6 breakers dominate the medium-voltage market because physics and economics both favor sealed-interrupter designs above 1kV. That Voltage Ceiling isn't a product decision\u2014it's an engineering reality.Conclusion: Voltage First, Then Everything Else FollowsRemember those two datasheets from the opening? Both listed voltage ratings up to 690V. Both claimed robust breaking capacity. But now you know: voltage isn't just a number\u2014it's the dividing line between breaker technologies.Here's the decision framework in three parts:1. Voltage determines the breaker type (The Voltage Ceiling)System voltage \u22641,000V AC \u2192 Air Circuit Breaker (ACB) governed by IEC 60947-2:2024System voltage &gt;1,000V AC \u2192 Vacuum Circuit Breaker (VCB) governed by IEC 62271-100:2021+A1:2024This isn't negotiable. Physics sets the boundary; standards formalized it.2. Standards formalize the split (The Standards Split)IEC didn't create two separate standards for market segmentation\u2014they codified the reality that air-based arc interruption fails above 1kVYour system voltage tells you which standard applies, which tells you which breaker technology to specifyCheck the breaker's IEC compliance marking: 60947-2 = low voltage, 62271-100 = medium voltage3. Maintenance determines lifecycle economics (The Maintenance Tax)ACBs cost less upfront but bleed $2,000-$3,000\/year in semi-annual inspections and contact replacementsVCBs cost more initially but require inspection only every 3-5 years, with 20-30 year contact lifespanThe TCO crossover happens around year 3; by year 15, VCBs save $20,000-$25,000 per breakerFor medium-voltage applications (where you must use VCBs anyway), the cost advantage is a bonusFor low-voltage applications (where ACBs are appropriate), budget for the Maintenance Tax and stick to the inspection scheduleThe datasheet might show overlapping voltage ratings. The marketing brochure might imply they're interchangeable. But physics doesn't negotiate, and neither should you.Choose based on your system voltage. Everything else\u2014current rating, breaking capacity, maintenance intervals, footprint\u2014falls into place once you've made that first choice correctly.Need Help Selecting the Right Circuit Breaker?VIOX's application engineering team has decades of experience specifying ACBs and VCBs for industrial, commercial, and utility applications worldwide. Whether you're designing a new 400V MCC, upgrading an 11kV substation, or troubleshooting frequent breaker failures, we'll review your system requirements and recommend IEC-compliant solutions that balance performance, safety, and lifecycle cost.Contact VIOX today for:Circuit breaker selection and sizing calculationsShort-circuit coordination studiesSwitchgear retrofit feasibility assessmentsMaintenance optimization and TCO analysisBecause getting the breaker type wrong isn't just expensive\u2014it's dangerous.\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Structural-comparison-of-ACB-and-VCB-technologies.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Structural-comparison-of-ACB-and-VCB-technologies-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Structural-comparison-of-ACB-and-VCB-technologies-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Structural-comparison-of-ACB-and-VCB-technologies-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Structural-comparison-of-ACB-and-VCB-technologies-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><em>\u1015\u102f\u1036 \u1041- ACB \u1014\u103e\u1004\u1037\u103a VCB \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1019\u103b\u102c\u1038\u104f \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1001\u103b\u1000\u103a\u104b ACB (\u1018\u101a\u103a\u1018\u1000\u103a) \u101e\u100a\u103a \u101c\u103d\u1010\u103a\u101c\u1015\u103a\u101e\u1031\u102c\u101c\u1031\u1011\u1032\u1010\u103d\u1004\u103a arc chutes \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u103c\u102e\u1038 VCB (\u100a\u102c\u1018\u1000\u103a) \u101e\u100a\u103a arc \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u1005\u1000\u103a\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u100a\u103a\u104b.<\/em><\/p>\n<hr \/>\n<h2>Arc \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038- \u101c\u1031\u1014\u103e\u1004\u1037\u103a \u101c\u1031\u101f\u102c\u1014\u101a\u103a (\u101b\u1030\u1015\u1017\u1031\u1012\u101e\u100a\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1000\u102d\u102f \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u1014\u100a\u103a\u1038)<\/h2>\n<p>\u101e\u1004\u103a\u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u101e\u100a\u1037\u103a contacts \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101d\u1014\u103a\u1021\u102c\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1001\u103d\u1032\u1011\u102f\u1010\u103a\u101e\u1031\u102c\u1021\u1001\u102b arc \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101c\u102c\u101e\u100a\u103a\u104b \u1021\u1019\u103c\u1032\u1010\u1019\u103a\u1038\u104b \u1011\u102d\u102f arc \u101e\u100a\u103a \u1015\u101c\u102c\u1005\u1019\u102c\u1000\u1031\u102c\u103a\u101c\u1036\u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u2014\u1021\u102d\u102f\u1004\u103a\u1038\u101a\u103d\u1014\u103a\u1038\u1013\u102c\u1010\u103a\u1004\u103d\u1031\u1037\u101e\u100a\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 20,000\u00b0C (\u1014\u1031\u104f\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1011\u1000\u103a \u1015\u102d\u102f\u1015\u1030\u101e\u100a\u103a) \u1010\u103d\u1004\u103a \u1011\u1031\u102c\u1004\u103a\u1015\u1031\u102b\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c\u101e\u1031\u102c amperes \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101c\u103b\u103e\u1015\u103a\u1000\u1030\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u101e\u1004\u103a\u104f circuit breaker \u104f\u1021\u101c\u102f\u1015\u103a\u1019\u103e\u102c contacts \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1010\u1030\u1010\u1000\u103d \u1002\u101f\u1031\u1019\u1006\u1000\u103a\u1019\u102e \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a arc flash \u1016\u103c\u1005\u103a\u101b\u1015\u103a\u1000\u102d\u102f \u1019\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u1019\u102e \u1011\u102d\u102f arc \u1000\u102d\u102f \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101b\u1014\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u104e\u1004\u103a\u1038\u101e\u100a\u103a contacts \u1019\u103b\u102c\u1038\u1015\u1010\u103a\u101c\u100a\u103a\u101b\u103e\u102d \u1000\u103c\u102c\u1038\u1001\u1036\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a \u101c\u102f\u1036\u1038\u101d\u1019\u1030\u1010\u100a\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u1031\u1014\u103e\u1004\u1037\u103a Arc Chutes \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1014\u100a\u103a\u1038<\/h3>\n<p>\u1010\u1005\u103a\u1001\u102f <strong>\u101c\u1031\u1010\u102d\u102f\u1000\u103a\u1014\u101a\u103a\u1021\u1014\u102d\u102f\u1004\u103a\u1021\u1011\u1000\u103a<\/strong> \u101c\u1031\u1011\u102f\u1011\u1032\u1010\u103d\u1004\u103a arc \u1000\u102d\u102f \u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b breaker \u104f contacts \u1019\u103b\u102c\u1038\u1000\u102d\u102f arc chutes \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1011\u102c\u1038\u101b\u103e\u102d\u101e\u100a\u103a\u2014contacts \u1019\u103b\u102c\u1038 \u1001\u103d\u1032\u1011\u103d\u1000\u103a\u101e\u1031\u102c\u1021\u1001\u102b arc \u1000\u102d\u102f \u1010\u102c\u1038\u1006\u102e\u1038\u101b\u1014\u103a \u1014\u1031\u101b\u102c\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c \u101e\u1010\u1039\u1010\u102f\u1015\u103c\u102c\u1038\u1019\u103b\u102c\u1038\u104f \u1021\u1001\u1004\u103a\u1038\u1021\u1000\u103b\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u104b \u1024\u1010\u103d\u1004\u103a \u1021\u1005\u102e\u1021\u1005\u1009\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a-<\/p>\n<ol>\n<li><strong>Arc \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1001\u103c\u1004\u103a\u1038-<\/strong> Contacts \u1019\u103b\u102c\u1038 \u1001\u103d\u1032\u1011\u103d\u1000\u103a\u1015\u103c\u102e\u1038 \u101c\u1031\u1011\u1032\u1010\u103d\u1004\u103a arc \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Arc \u101b\u103e\u100a\u103a\u101c\u103b\u102c\u1038\u1001\u103c\u1004\u103a\u1038-<\/strong> \u101e\u1036\u101c\u102d\u102f\u1000\u103a\u1021\u102c\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a arc \u1000\u102d\u102f arc chute \u1011\u1032\u101e\u102d\u102f\u1037 \u1019\u1031\u102c\u1004\u103a\u1038\u1014\u103e\u1004\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Arc \u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038-<\/strong> chute \u104f \u101e\u1010\u1039\u1010\u102f\u1015\u103c\u102c\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a arc \u1000\u102d\u102f \u1010\u102d\u102f\u1010\u1031\u102c\u1004\u103a\u1038\u101e\u1031\u102c arcs \u1019\u103b\u102c\u1038\u1005\u103d\u102c\u1021\u1016\u103c\u1005\u103a \u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103c\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Arc \u1021\u1021\u1031\u1038\u1001\u1036\u1001\u103c\u1004\u103a\u1038-<\/strong> \u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1027\u101b\u102d\u101a\u102c \u1010\u102d\u102f\u1038\u101c\u102c\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u1031\u1014\u103e\u1004\u1037\u103a\u1011\u102d\u1010\u103d\u1031\u1037\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1015\u101c\u102c\u1005\u1019\u102c\u1000\u102d\u102f \u1021\u1031\u1038\u1005\u1031\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Arc \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038-<\/strong> arc \u1021\u1031\u1038\u101c\u102c\u1015\u103c\u102e\u1038 \u101b\u103e\u100a\u103a\u101c\u102c\u101e\u100a\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1019\u103b\u103e \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101e\u100a\u103a \u1010\u102d\u102f\u1038\u101c\u102c\u1015\u103c\u102e\u1038 arc \u101e\u100a\u103a \u1014\u1031\u102c\u1000\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u102f\u100a\u1010\u103d\u1004\u103a \u101e\u1030\u1037\u1000\u102d\u102f\u101a\u103a\u101e\u1030 \u1006\u1000\u103a\u101c\u1000\u103a\u1011\u102d\u1014\u103a\u1038\u1011\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u1010\u1031\u102c\u1037\u1019\u100a\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u1031\u104b<\/li>\n<\/ol>\n<p>\u104e\u1004\u103a\u1038\u101e\u100a\u103a 1,000V \u1021\u1011\u102d \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u1021\u101c\u102f\u1015\u103a\u101c\u102f\u1015\u103a\u101e\u100a\u103a\u104b \u1011\u102d\u102f\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a arc \u104f\u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u101e\u100a\u103a \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101c\u103d\u1014\u103a\u1038\u101e\u100a\u103a\u104b \u101c\u1031\u104f dielectric \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a (\u1019\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u102e \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101e\u1031\u102c \u1017\u102d\u102f\u1037\u1021\u102c\u1038 gradient) \u101e\u100a\u103a \u101c\u1031\u1011\u102f\u1016\u102d\u1021\u102c\u1038\u1010\u103d\u1004\u103a \u1001\u1014\u1037\u103a\u1019\u103e\u1014\u103a\u1038\u1001\u103c\u1031\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 3 kV\/mm \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a multi-kilovolt \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103c\u102c\u1038\u101e\u102d\u102f\u1037 \u1010\u1000\u103a\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u1014\u103e\u1004\u1037\u103a\u1010\u1005\u103a\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a arc \u101e\u100a\u103a \u1000\u103b\u101a\u103a\u1015\u103c\u1014\u1037\u103a\u101c\u102c\u101e\u1031\u102c contact \u1000\u103d\u102c\u101f\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1016\u103c\u1010\u103a\u104d \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101c\u102c\u101e\u100a\u103a\u104b breaker \u1000\u102d\u102f \u1000\u102c\u1038\u1004\u101a\u103a\u1010\u1005\u103a\u1005\u102e\u1038\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1019\u1016\u103c\u1005\u103a\u1005\u1031\u1018\u1032 \u101b\u1015\u103a\u1010\u1014\u1037\u103a\u101b\u1014\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u1031\u102c arc chute \u1000\u102d\u102f \u101e\u1004\u103a\u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u104d\u1019\u101b\u1015\u102b\u104b.<\/p>\n<p>\u1012\u102b\u1000 <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038<\/strong>.<\/p>\n<h3>VCBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u101b\u1030\u1015\u1017\u1031\u1012\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1014\u100a\u103a\u1038<\/h3>\n<p>\u1010\u1032\u1037 <strong>Vacuum Circuit Breaker<\/strong> \u101c\u102f\u1036\u1038\u101d\u1000\u103d\u1032\u1015\u103c\u102c\u1038\u1001\u103c\u102c\u1038\u1014\u102c\u1038\u101e\u1031\u102c \u1001\u103b\u1009\u103a\u1038\u1000\u1015\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1001\u1036\u101a\u1030\u101e\u100a\u103a\u104b contacts \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u1005\u1000\u103a\u1010\u103d\u1004\u103a \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u2014\u1021\u1001\u1014\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u101e\u100a\u103a 10^-2 \u1014\u103e\u1004\u1037\u103a 10^-6 torr 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\u1019\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li><strong>\u1001\u103b\u1000\u103a\u1001\u103b\u1004\u103a\u1038 \u1004\u103c\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/strong> \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a\u101e\u100a\u103a \u1005\u1000\u103a\u101d\u1014\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u1021\u1010\u103d\u1004\u103a\u1038 (60 Hz \u1005\u1014\u1005\u103a\u1010\u103d\u1004\u103a 8.3 milliseconds) \u1015\u103b\u1031\u102c\u1000\u103a\u1000\u103d\u101a\u103a\u101e\u103d\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<\/ol>\n<p>\u101c\u1031\u101f\u102c\u1014\u101a\u103a\u101e\u100a\u103a \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u1014\u103e\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u1015\u1031\u1038\u1005\u103d\u1019\u103a\u1038\u101e\u100a\u103a\u104b \u1015\u1011\u1019\u1021\u1001\u103b\u1000\u103a\u1019\u103e\u102c, <strong>\u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1021\u102c\u1038<\/strong>: 10mm \u101e\u102c\u101b\u103e\u102d\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a \u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038\u101e\u100a\u103a 40kV \u1021\u1011\u102d \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b \u101a\u1004\u103a\u1038\u101e\u100a\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038\u1010\u103d\u1004\u103a \u101c\u1031\u1011\u1000\u103a \u1021\u1006 10 \u1019\u103e 100 \u1006 \u1015\u102d\u102f\u1019\u102d\u102f\u1021\u102c\u1038\u1000\u1031\u102c\u1004\u103a\u1038\u101e\u100a\u103a\u104b \u1012\u102f\u1010\u102d\u101a\u1021\u1001\u103b\u1000\u103a\u1019\u103e\u102c, <strong>\u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1001\u103c\u1004\u103a\u1038<\/strong>: \u1021\u1031\u102c\u1000\u103a\u1006\u102e\u1002\u103b\u1004\u103a \u1019\u101b\u103e\u102d\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u1031\u1014\u103e\u1004\u1037\u103a\u1011\u102d\u1010\u103d\u1031\u1037\u101e\u1031\u102c ACB \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u1032\u1037\u101e\u102d\u102f\u1037 \u1010\u1030\u100a\u102e\u101e\u1031\u102c\u1014\u103e\u102f\u1014\u103a\u1038\u1016\u103c\u1004\u1037\u103a \u1013\u102c\u1010\u103a\u1010\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1001\u103c\u1004\u103a\u1038 \u1019\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1015\u102b\u104b \u101a\u1004\u103a\u1038\u101e\u100a\u103a <strong>\u1010\u1005\u103a\u101e\u1000\u103a\u1010\u102c\u1021\u1010\u103d\u1000\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u104f \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a<\/strong>.<\/p>\n<p>\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u1005\u103d\u102c \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101b\u103e\u102d VCB \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1014\u103e\u1005\u103a 20 \u1019\u103e 30 \u1021\u1011\u102d \u1000\u103c\u102c\u101b\u103e\u100a\u103a\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u101c\u1031\u1011\u102f\u1011\u1032\u101b\u103e\u102d \u1021\u1031\u102c\u1000\u103a\u1006\u102e\u1002\u103b\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a \u1015\u101c\u102c\u1005\u1019\u102c\u1014\u103e\u1004\u1037\u103a \u1011\u102d\u1010\u103d\u1031\u1037\u101e\u1031\u102c ACB \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101c\u102c\u1038\u104b \u1016\u102f\u1014\u103a\u1011\u1030\u101e\u1031\u102c \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1005\u102d\u102f\u1005\u103d\u1010\u103a\u101e\u1031\u102c \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1010\u1005\u103a\u1001\u102b\u1010\u1005\u103a\u101b\u1036 \u1015\u102d\u102f\u1005\u1031\u102c\u1015\u103c\u102e\u1038 \u1021\u1014\u103e\u1005\u103a 3 \u1019\u103e 5 \u1014\u103e\u1005\u103a\u1010\u102d\u102f\u1004\u103a\u1038 \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20223\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Arc-quenching-mechanisms.webp\" alt=\"Arc quenching mechanisms\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Arc-quenching-mechanisms.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Arc-quenching-mechanisms-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Arc-quenching-mechanisms-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Arc-quenching-mechanisms-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Arc-quenching-mechanisms-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><em>\u1015\u102f\u1036 \u1042- \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a\u1000\u102d\u102f \u1004\u103c\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101e\u100a\u1037\u103a \u1014\u100a\u103a\u1038\u101c\u1019\u103a\u1038\u1019\u103b\u102c\u1038\u104b ACB \u101e\u100a\u103a \u101c\u1031\u1011\u1032\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a\u1000\u102d\u102f \u101b\u103e\u100a\u103a\u1005\u1031\u101b\u1014\u103a\u104a \u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103c\u102c\u1038\u101b\u1014\u103a\u1014\u103e\u1004\u1037\u103a \u1021\u1031\u1038\u1005\u1031\u101b\u1014\u103a \u1021\u1006\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1005\u103d\u102c \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a (\u1018\u101a\u103a\u1018\u1000\u103a)\u104a VCB \u101e\u100a\u103a \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u104f \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1021\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1015\u1011\u1019\u1026\u1038\u1006\u102f\u1036\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u101e\u102f\u100a\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a\u1000\u102d\u102f \u1001\u103b\u1000\u103a\u1001\u103b\u1004\u103a\u1038 \u1004\u103c\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u101e\u100a\u103a (\u100a\u102c\u1018\u1000\u103a)\u104b.<\/em><\/p>\n<p><strong>-\u1021\u1005\u103d\u1014\u103a\u1021\u1016\u103b\u102c\u1038#\u1041:<\/strong> <em>\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u101e\u100a\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u104d \u1019\u101b\u1015\u102b\u104b ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u1031\u1011\u102f\u1016\u102d\u1021\u102c\u1038\u1010\u103d\u1004\u103a \u101c\u1031\u1011\u1032\u104c 1kV \u1021\u1011\u1000\u103a\u101b\u103e\u102d \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1019\u101b\u103e\u102d\u1015\u102b\u104b \u101e\u1004\u103a\u104f \u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a 1,000V AC \u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1015\u102b\u1000 VCB \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b \u201c\u1015\u102d\u102f\u1000\u1031\u102c\u1004\u103a\u1038\u101e\u1031\u102c\u201d \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1021\u1014\u1031\u1016\u103c\u1004\u1037\u103a \u1019\u101f\u102f\u1010\u103a\u1018\u1032 \u101b\u1030\u1015\u1017\u1031\u1012\u1014\u103e\u1004\u1037\u103a IEC \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u101e\u1031\u102c \u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u101e\u1031\u102c \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1021\u1014\u1031\u1016\u103c\u1004\u1037\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/em><\/p>\n<hr \/>\n<h2>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038- \u1002\u100f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a \u1018\u102c\u1000\u102d\u102f\u1006\u102d\u102f\u101c\u102d\u102f\u101e\u1014\u100a\u103a\u1038\u104b<\/h2>\n<p>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u1012\u1031\u1010\u102c\u1005\u102c\u101b\u103d\u1000\u103a\u1015\u1031\u102b\u103a\u101b\u103e\u102d \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u101c\u102d\u102f\u1004\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u1019\u103b\u103e\u101e\u102c \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u101e\u1004\u103a \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f\u1015\u1004\u103a \u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1015\u1031\u1038\u101e\u100a\u1037\u103a \u1021\u1001\u103c\u1031\u1001\u1036 \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1012\u102f\u1010\u102d\u101a\u101c\u102d\u102f\u1000\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1024\u1010\u103d\u1004\u103a \u1002\u100f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1010\u103d\u1004\u103a \u1018\u102c\u1000\u102d\u102f\u1006\u102d\u102f\u101c\u102d\u102f\u101e\u100a\u103a\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>ACB \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038- \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1021\u102c\u1038 \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u104a \u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1014\u102d\u1019\u1037\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/h3>\n<p><strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038:<\/strong> ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a 400V \u1019\u103e 1,000V AC \u1021\u1011\u102d \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u101c\u100a\u103a\u1015\u1010\u103a\u101e\u100a\u103a (\u1021\u1011\u1030\u1038\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103b\u102d\u102f\u1037\u101e\u100a\u103a 1,500V DC \u1021\u1011\u102d \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a)\u104b \u1015\u102f\u1036\u1019\u103e\u1014\u103a \u1021\u1000\u1031\u102c\u1004\u103a\u1038\u1006\u102f\u1036\u1038\u1021\u1019\u103e\u1010\u103a\u1019\u103e\u102c \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1000\u103a\u1019\u103e\u102f\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a 400V \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 690V \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b 1kV AC \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u101c\u1031\u104f \u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1002\u102f\u100f\u103a\u101e\u1010\u1039\u1010\u102d\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1019\u1000\u103b\u1005\u1031\u1015\u102b\u104b <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038<\/strong> \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037 \u1006\u103d\u1031\u1038\u1014\u103d\u1031\u1038\u1001\u1032\u1037\u101e\u100a\u103a\u1019\u103e\u102c \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038 \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u101b\u1030\u1015\u1017\u1031\u1012 \u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038 \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a:<\/strong> ACBs \u1019\u103b\u102c\u1038 \u101c\u103d\u103e\u1019\u103a\u1038\u1019\u102d\u102f\u1038\u1011\u102c\u1038\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1019\u103e\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101e\u1031\u1038\u1004\u101a\u103a\u101e\u1031\u102c \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1021\u1000\u1014\u1037\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a 800A \u1019\u103e \u1021\u1013\u102d\u1000 \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a 10,000A \u1021\u1011\u102d \u101b\u103e\u102d\u101e\u100a\u103a\u104b \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1021\u1010\u103d\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c\u1021\u101b\u102c\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1019\u1031\u102c\u103a\u1010\u102c \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (MCCs)\u104a \u1015\u102b\u101d\u102b \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (PCCs) \u1014\u103e\u1004\u1037\u103a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1019\u103e\u102f \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038\u101b\u103e\u102d \u1021\u1013\u102d\u1000 \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1018\u102f\u1010\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1005\u1009\u103a\u1038\u1005\u102c\u1038\u1015\u102b\u104b.<\/p>\n<p><strong>\u1001\u103b\u102d\u102f\u1038\u1016\u103b\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038-<\/strong> \u1010\u102d\u102f\u1010\u1031\u102c\u1004\u103a\u1038\u101e\u1031\u102c \u1006\u102c\u1038\u1000\u1005\u103a \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a 690V \u1010\u103d\u1004\u103a 100kA \u1021\u1011\u102d \u101b\u1031\u102c\u1000\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b \u101a\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1011\u1004\u103a\u1000\u103c\u102e\u1038\u1005\u101b\u102c\u1000\u1031\u102c\u1004\u103a\u1038\u101e\u100a\u103a\u101f\u102f \u1011\u1004\u103a\u101b\u101e\u100a\u103a - \u1011\u102d\u102f\u1021\u1010\u102d\u102f\u1004\u103a\u1038\u101c\u100a\u103a\u1038 \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u1015\u102b\u101d\u102b \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f\u1016\u103c\u1004\u1037\u103a \u101b\u103e\u102f\u1011\u1031\u102c\u1004\u1037\u103a\u1010\u103d\u1004\u103a \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1000\u103c\u100a\u1037\u103a\u1000\u103c\u1015\u102b\u1005\u102d\u102f\u1037\u104b<\/p>\n<ul>\n<li>\u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038: 690V \u1010\u103d\u1004\u103a 100kA (\u101c\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u101c\u102d\u102f\u1004\u103a\u1038\u101e\u102d\u102f\u1037)<\/li>\n<li>\u1011\u1004\u103a\u101e\u102c\u1019\u103c\u1004\u103a\u101e\u102c\u101e\u1031\u102c \u1015\u102b\u101d\u102b: \u221a3 \u00d7 690V \u00d7 100kA \u2248 <strong>119 MVA<\/strong><\/li>\n<\/ul>\n<p>\u101a\u1004\u103a\u1038\u101e\u100a\u103a ACB \u1010\u1005\u103a\u1001\u102f \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u1005\u103d\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u1037\u103a \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1015\u102b\u101d\u102b\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b 1.5 MVA \u1011\u101b\u1014\u103a\u1005\u1016\u1031\u102c\u103a\u1019\u102c\u1014\u103e\u1004\u1037\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a X\/R \u1021\u1001\u103b\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c 400V\/690V \u1005\u1000\u103a\u1019\u103e\u102f\u1005\u1000\u103a\u101b\u102f\u1036\u1021\u1010\u103d\u1000\u103a 65kA \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101e\u100a\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b 100kA \u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1021\u1006\u1004\u1037\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u1011\u101b\u1014\u103a\u1005\u1016\u1031\u102c\u103a\u1019\u102c\u1019\u103b\u102c\u1038\u1005\u103d\u102c\u1000\u102d\u102f \u1021\u1015\u103c\u102d\u102f\u1004\u103a\u1021\u1006\u102d\u102f\u1004\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101e\u102e\u1038\u101e\u1014\u1037\u103a\u1011\u102c\u1038\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1015\u102f\u1036\u1019\u103e\u1014\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038:<\/strong><\/p>\n<ul>\n<li>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a \u1021\u1013\u102d\u1000 \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1021\u1000\u1014\u1037\u103a\u1019\u103b\u102c\u1038 (LVMDP)<\/li>\n<li>\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u104a \u1016\u102d\u1021\u102c\u1038\u1015\u1031\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1019\u1031\u102c\u103a\u1010\u102c \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (MCCs)<\/li>\n<li>\u1005\u1000\u103a\u1019\u103e\u102f\u1005\u1000\u103a\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1015\u102b\u101d\u102b \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (PCCs)<\/li>\n<li>\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f\u1000\u103a\u100a\u103e\u102d\u101b\u1031\u1038\u1021\u1000\u1014\u1037\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036 \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1001\u1014\u103a\u1038\u1019\u103b\u102c\u1038 (1kV \u1021\u1031\u102c\u1000\u103a)<\/li>\n<\/ul>\n<h3>VCB \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038- \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u104a \u101e\u1004\u1037\u103a\u1010\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u1000\u103a\u1015\u1010\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038<\/h3>\n<p><strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103c\u102c\u1038:<\/strong> VCBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 11kV \u1019\u103e 33kV \u1021\u1011\u102d\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103b\u102d\u102f\u1037\u101e\u100a\u103a \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103c\u102c\u1038\u1000\u102d\u102f 1kV \u1021\u1011\u102d \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 38kV \u1021\u1011\u102d \u1010\u102d\u102f\u1038\u1001\u103b\u1032\u1037\u101e\u100a\u103a (IEC 62271-100 \u104f 2024 \u1015\u103c\u1004\u103a\u1006\u1004\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a 15.5kV, 27kV \u1014\u103e\u1004\u1037\u103a 40.5kV \u1010\u102d\u102f\u1037\u1010\u103d\u1004\u103a \u1005\u1036\u1015\u103c\u102f\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a)\u104b \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1005\u1000\u103a\u104f \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1021\u102c\u1038\u101e\u100a\u103a \u1024\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u103b\u1005\u103a\u101c\u1005\u103a\u101e\u102d\u1015\u103a\u101e\u100a\u103a\u1038\u101e\u1031\u102c \u1001\u103c\u1031\u101b\u102c\u1001\u1036\u1021\u1010\u103d\u1004\u103a\u1038 \u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1014\u102d\u102f\u1004\u103a\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038 \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a:<\/strong> VCBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a ACBs \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u1000 \u101e\u1004\u1037\u103a\u1010\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u1000\u103a\u1015\u1010\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1015\u103c\u102e\u1038 \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 600A \u1019\u103e 4,000A \u1021\u1011\u102d \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b \u1024\u101e\u100a\u103a\u1019\u103e\u102c \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u1015\u102b\u101e\u100a\u103a\u104b 11kV \u1010\u103d\u1004\u103a 2,000A \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101e\u100a\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u1019\u1031\u102c\u103a\u1010\u102c\u1000\u103c\u102e\u1038\u1019\u103b\u102c\u1038 \u1012\u102b\u1007\u1004\u103a\u1015\u1031\u102b\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1021\u101b\u103d\u101a\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1010\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u104f \u1015\u102b\u101d\u102b\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1014\u103e\u1004\u1037\u103a \u100a\u102e\u1019\u103b\u103e\u101e\u1031\u102c 38 MVA \u1006\u1000\u103a\u1010\u102d\u102f\u1000\u103a\u101d\u1014\u103a\u1000\u102d\u102f \u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1001\u103b\u102d\u102f\u1038\u1016\u103b\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038-<\/strong> VCBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a 25kA \u1019\u103e 50kA \u1021\u1011\u102d \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b 33kV \u1010\u103d\u1004\u103a 50kA VCB \u1021\u1010\u103d\u1000\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1015\u102b\u101d\u102b \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1000\u103c\u1015\u102b\u1005\u102d\u102f\u1037\u104b<\/p>\n<ul>\n<li>\u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038: 33kV \u1010\u103d\u1004\u103a 50kA (\u101c\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u101c\u102d\u102f\u1004\u103a\u1038\u101e\u102d\u102f\u1037)<\/li>\n<li>\u1011\u1004\u103a\u101e\u102c\u1019\u103c\u1004\u103a\u101e\u102c\u101e\u1031\u102c \u1015\u102b\u101d\u102b: \u221a3 \u00d7 33kV \u00d7 50kA \u2248 <strong>2,850 MVA<\/strong><\/li>\n<\/ul>\n<p>\u1012\u102b\u1000 <strong>\u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1021\u1006 \u1042\u1044 \u1006 \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a\u104b<\/strong> \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f 690V \u1010\u103d\u1004\u103a 100kA ACB \u1011\u1000\u103a \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a\u104b \u101b\u102f\u1010\u103a\u1010\u101b\u1000\u103a\u1006\u102d\u102f\u101e\u101c\u102d\u102f \u1011\u102d\u102f \u201c\u1014\u102d\u1019\u1037\u103a\u101e\u1031\u102c\u201d 50kA \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101e\u100a\u103a \u101b\u102d\u102f\u1038\u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u101b\u103e\u1004\u103a\u1038 \u1019\u101f\u102f\u1010\u103a\u1010\u1031\u102c\u1037\u1015\u102b\u104b VCBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a ACB \u104f \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a \u101c\u1019\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u1021\u1004\u103d\u1031\u1037\u1015\u103b\u1036\u1005\u1031\u1019\u100a\u1037\u103a \u1015\u102b\u101d\u102b\u1021\u1006\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u1031\u101e\u100a\u103a\u104b.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20224\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-Voltage-Ceiling-visualization.webp\" alt=\"the Voltage Ceiling visualization\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-Voltage-Ceiling-visualization.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-Voltage-Ceiling-visualization-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-Voltage-Ceiling-visualization-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-Voltage-Ceiling-visualization-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-Voltage-Ceiling-visualization-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><em>\u1015\u102f\u1036 \u1043- \u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 \u1019\u103c\u1004\u103a\u101e\u102c\u1015\u102f\u1036\u104b ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a 1,000V \u1021\u1011\u102d \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u101c\u100a\u103a\u1015\u1010\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1024\u1021\u1000\u1014\u1037\u103a\u1021\u101e\u1010\u103a\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1010\u1031\u102c\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u1005\u103d\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1019\u101b\u103e\u102d\u1015\u102b (\u1021\u1014\u102e\u101b\u1031\u102c\u1004\u103a\u1007\u102f\u1014\u103a)\u104a VCBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a 11kV \u1019\u103e 38kV \u1021\u1011\u102d \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103c\u102c\u1038\u1000\u102d\u102f \u101c\u103d\u103e\u1019\u103a\u1038\u1019\u102d\u102f\u1038\u1011\u102c\u1038\u101e\u100a\u103a (\u1021\u1005\u102d\u1019\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u1007\u102f\u1014\u103a)\u104b.<\/em><\/p>\n<p><strong>\u1015\u102f\u1036\u1019\u103e\u1014\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038:<\/strong><\/p>\n<ul>\n<li>\u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038 \u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1001\u103d\u1032\u101b\u102f\u1036\u1019\u103b\u102c\u1038 (11kV, 22kV, 33kV)<\/li>\n<li>\u1005\u1000\u103a\u1019\u103e\u102f \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c (\u1000\u103d\u1004\u103a\u1038\u1006\u1000\u103a \u1021\u1013\u102d\u1000 \u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u104a \u1001\u101c\u102f\u1010\u103a\u1018\u102f\u1010\u103a\u1019\u103b\u102c\u1038)<\/li>\n<li>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103c\u1004\u1037\u103a \u101c\u103e\u102f\u1036\u1037\u1006\u1031\u102c\u103a\u1019\u1031\u102c\u103a\u1010\u102c \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038 (&gt;1,000 HP)<\/li>\n<li>Transformer \u1021\u1013\u102d\u1000 \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a<\/li>\n<li>\u1015\u102b\u101d\u102b \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101b\u1031\u1038 \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038 (\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c \u1006\u102c\u1038\u1000\u1005\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038)<\/li>\n<li>\u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1015\u103c\u100a\u1037\u103a\u1016\u103c\u102d\u102f\u1038\u1019\u103c\u1032 \u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038 (\u101c\u1031\u1021\u102c\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101c\u101a\u103a\u1019\u103b\u102c\u1038\u104a \u1006\u102d\u102f\u101c\u102c \u1021\u1004\u103a\u1017\u102c\u1010\u102c \u1005\u1001\u1014\u103a\u1038\u1019\u103b\u102c\u1038)<\/li>\n<\/ul>\n<p><strong>-\u1021\u1005\u103d\u1014\u103a\u1021\u1016\u103b\u102c\u1038#\u1042:<\/strong> <em>\u1000\u102e\u101c\u102d\u102f\u1021\u1019\u103a\u1015\u102e\u101a\u102c \u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u1010\u103d\u1004\u103a \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1000\u102d\u102f \u1019\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u1014\u103e\u1004\u1037\u103a\u104b MVA \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1015\u102b\u101d\u102b\u1000\u102d\u102f \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1015\u102b (\u221a3 \u00d7 \u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u00d7 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038)\u104b 33kV \u1010\u103d\u1004\u103a 50kA VCB \u101e\u100a\u103a 690V \u1010\u103d\u1004\u103a 100kA ACB \u1011\u1000\u103a \u1021\u1006\u1015\u1031\u102b\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c \u1015\u102d\u102f\u1019\u102d\u102f\u101e\u1031\u102c \u1015\u102b\u101d\u102b\u1000\u102d\u102f \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u101e\u100a\u103a\u104b \u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1000\u102d\u102f \u1021\u1000\u1032\u1016\u103c\u1010\u103a\u101b\u102c\u1010\u103d\u1004\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a\u104b.<\/em><\/p>\n<hr \/>\n<h2>\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038- IEC 60947-2 (ACB) \u1014\u103e\u1004\u1037\u103a IEC 62271-100 (VCB)<\/h2>\n<p>\u1014\u102d\u102f\u1004\u103a\u1004\u1036\u1010\u1000\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1014\u100a\u103a\u1038\u1015\u100a\u102c \u1000\u1031\u102c\u103a\u1019\u101b\u103e\u1004\u103a (IEC) \u101e\u100a\u103a \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u1031\u102b\u1037\u1015\u1031\u102b\u1037\u1010\u1014\u103a\u1010\u1014\u103a \u1019\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1015\u102b\u104b IEC 60947-2 \u101e\u100a\u103a 1,000V \u1021\u1011\u102d \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u1015\u103c\u102e\u1038 IEC 62271-100 \u101e\u100a\u103a 1,000V \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u1010\u102c\u101d\u1014\u103a\u101a\u1030\u101e\u1031\u102c\u1021\u1001\u102b \u1011\u102d\u102f\u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u101e\u100a\u103a \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037 \u1006\u103d\u1031\u1038\u1014\u103d\u1031\u1038\u1014\u1031\u1001\u1032\u1037\u101e\u1031\u102c \u101b\u1030\u1015\u1017\u1031\u1012\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1016\u103c\u1005\u103a\u1019\u103e\u1014\u103a\u1000\u102d\u102f \u1011\u1004\u103a\u101f\u1015\u103a\u1005\u1031\u101e\u100a\u103a\u104b \u1024\u101e\u100a\u103a\u1019\u103e\u102c <strong>\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u1001\u103d\u1032\u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>, \u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u101a\u1004\u103a\u1038\u101e\u100a\u103a \u101e\u1004\u103a\u104f \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1026\u1038\u1010\u100a\u103a\u101b\u102c\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u101c\u1031 \u1006\u102c\u1038\u1000\u1005\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a IEC 60947-2:2024<\/h3>\n<p><strong>\u1021\u1000\u103b\u102f\u1036\u1038\u101d\u1004\u103a\u101e\u1031\u102c \u1021\u1015\u102d\u102f\u1004\u103a\u1038:<\/strong> \u1024\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u101e\u100a\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b <strong>1,000V AC \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 1,500V DC \u1011\u1000\u103a \u1019\u1015\u102d\u102f\u1015\u102b\u104b<\/strong>. \u101a\u1004\u103a\u1038\u101e\u100a\u103a ACBs\u104a \u1015\u102f\u1036\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u102d\u1010\u103a \u1006\u102c\u1038\u1000\u1005\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038 (MCCBs) \u1014\u103e\u1004\u1037\u103a \u101e\u1031\u1038\u1004\u101a\u103a\u101e\u1031\u102c \u1006\u102c\u1038\u1000\u1005\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038 (MCBs) \u1021\u1015\u102b\u1021\u101d\u1004\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a \u1006\u102c\u1038\u1000\u1005\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u102c\u100f\u102c\u1015\u102d\u102f\u1004\u103a \u101b\u100a\u103a\u100a\u103d\u103e\u1014\u103a\u1038\u1001\u103b\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1006\u100b\u1039\u100c\u1019\u1021\u1000\u103c\u102d\u1019\u103a\u1000\u102d\u102f \u1011\u102f\u1010\u103a\u101d\u1031\u1001\u1032\u1037\u101e\u100a\u103a\u104b <strong>\u1042\u1040\u1042\u1044 \u1001\u102f\u1014\u103e\u1005\u103a \u1005\u1000\u103a\u1010\u1004\u103a\u1018\u102c\u101c<\/strong>, \u1042\u1040\u1041\u1046 \u1001\u102f\u1014\u103e\u1005\u103a\u1011\u102f\u1010\u103a\u1000\u102d\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u1032\u1037\u101e\u100a\u103a\u104b \u1021\u1013\u102d\u1000 \u1021\u1015\u103a\u1012\u102d\u1010\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a-<\/p>\n<ol>\n<li><strong>\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1001\u103d\u1032\u1011\u102f\u1010\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1019\u103e\u102f:<\/strong> \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1001\u101c\u102f\u1010\u103a\u1019\u103b\u102c\u1038\u1021\u1016\u103c\u1005\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u103e\u1004\u103a\u1038\u101c\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1001\u103c\u1004\u103a\u1038-<\/strong> IEC \u101e\u100a\u103a \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u101e\u100a\u1037\u103a\u1000\u103c\u102c\u1038\u1001\u1036 (\u101c\u1031\u104a \u1006\u102e\u104a SF6 \u1005\u101e\u100a\u103a) \u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u104f \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1001\u1032\u1037\u101e\u100a\u103a\u104b \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1006\u102d\u102f\u101e\u1031\u102c\u103a <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u101e\u1004\u1037\u103a\u1021\u102c\u1038 \u1000\u103c\u102c\u1038\u1001\u1036\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1015\u103c\u1015\u103c\u102e\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/strong>. \u1021\u1000\u101a\u103a\u104d \u101e\u1004\u103a\u101e\u100a\u103a 690V \u1010\u103d\u1004\u103a\u101b\u103e\u102d\u1015\u102b\u1000 \u101c\u1031 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1015\u102f\u1036\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u1037\u103a\u1021\u102d\u1010\u103a\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u1031\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101a\u1001\u1004\u103a \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u101e\u100a\u103a \u1015\u102d\u102f\u101c\u103b\u103e\u1036\u1014\u1031\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>\u1015\u103c\u1004\u103a\u1015\u1000\u102d\u101b\u102d\u101a\u102c \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1019\u103e\u102f\u1019\u103b\u102c\u1038-<\/strong> \u1015\u103c\u1004\u103a\u1015\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038\u1019\u103e\u1010\u1005\u103a\u1006\u1004\u1037\u103a overcurrent \u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1015\u103c\u100b\u1039\u100c\u102c\u1014\u103a\u1038\u1001\u103b\u1000\u103a\u1021\u101e\u1005\u103a\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f-<\/strong> \u1019\u103c\u1031\u1015\u103c\u1004\u103a\u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u1011\u102f\u1010\u103a\u101c\u103d\u103e\u1010\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1001\u101b\u102e\u1038\u1011\u103d\u1000\u103a\u101e\u100a\u1037\u103a \u1021\u1014\u1031\u1021\u1011\u102c\u1038\u101b\u103e\u102d dielectric \u1002\u102f\u100f\u103a\u101e\u1010\u1039\u1010\u102d\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1011\u1015\u103a\u101c\u1031\u102c\u1004\u103a\u1038\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/li>\n<li><strong>EMC \u1010\u102d\u102f\u1038\u1010\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038-<\/strong> \u1021\u1015\u103a\u1012\u102d\u1010\u103a\u101c\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101e\u1036\u101c\u102d\u102f\u1000\u103a\u101c\u102d\u102f\u1000\u103a\u1016\u1000\u103a\u100a\u102e\u1019\u103e\u102f (EMC) \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1011\u102f\u1036\u1038\u101c\u102f\u1015\u103a\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1015\u102b\u101d\u102b\u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1001\u103c\u1004\u103a\u1038\u1014\u100a\u103a\u1038\u101c\u1019\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<\/ol>\n<p>2024 \u1015\u103c\u1004\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1000\u102d\u102f \u1015\u102d\u102f\u1019\u102d\u102f\u101e\u1014\u1037\u103a\u101b\u103e\u1004\u103a\u1038\u1005\u1031\u1015\u103c\u102e\u1038 \u1001\u1031\u1010\u103a\u1019\u102e\u1012\u1005\u103a\u1002\u103b\u1005\u103a\u1010\u101a\u103a \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1019\u1010\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1014\u103e\u1004\u1037\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1005\u1031\u101e\u100a\u103a\u104a \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u1021\u1013\u102d\u1000\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u2014<strong>\u22641,000V AC<\/strong>\u2014\u1019\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1018\u1032\u101b\u103e\u102d\u1014\u1031\u101e\u100a\u103a\u104b \u1011\u102d\u102f\u1037\u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u101e\u1004\u103a\u101e\u100a\u103a IEC 60947-2 \u104f \u1005\u102e\u101b\u1004\u103a\u1015\u102d\u102f\u1004\u103a\u1001\u103d\u1004\u1037\u103a\u1019\u103e \u101c\u103d\u1010\u103a\u1019\u103c\u1031\u102c\u1000\u103a\u101e\u103d\u102c\u1038\u1015\u103c\u102e\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1016\u102f\u1014\u103a\u1005\u102f\u1015\u103a\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a IEC 62271-100:2021 (\u1015\u103c\u1004\u103a\u1006\u1004\u103a\u1001\u103b\u1000\u103a 1: 2024)<\/h3>\n<p><strong>\u1021\u1000\u103b\u102f\u1036\u1038\u101d\u1004\u103a\u101e\u1031\u102c \u1021\u1015\u102d\u102f\u1004\u103a\u1038:<\/strong> \u1024\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u101e\u100a\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u103a\u104b <strong>1,000V \u1021\u1011\u1000\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong>. \u104e\u1004\u103a\u1038\u1000\u102d\u102f \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u102d\u1019\u103a\u1010\u103d\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1015\u103c\u1004\u103a\u1018\u1000\u103a\u101b\u103e\u102d \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1011\u1030\u1038\u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1015\u103c\u102e\u1038 VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u103d\u103e\u1019\u103a\u1038\u1019\u102d\u102f\u1038\u1011\u102c\u1038\u101e\u1031\u102c \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1016\u103c\u1005\u103a\u101e\u100a\u103a (\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1010\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a SF6 \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030)\u104b.<\/p>\n<p>\u1010\u1010\u102d\u101a\u1021\u1000\u103c\u102d\u1019\u103a\u1011\u102f\u1010\u103a\u101d\u1031\u1019\u103e\u102f\u1000\u102d\u102f 2021 \u1001\u102f\u1014\u103e\u1005\u103a\u1010\u103d\u1004\u103a \u1011\u102f\u1010\u103a\u101d\u1031\u1001\u1032\u1037\u1015\u103c\u102e\u1038\u104a <strong>\u1015\u103c\u1004\u103a\u1006\u1004\u103a\u1001\u103b\u1000\u103a \u1041 \u1000\u102d\u102f \u1042\u1040\u1042\u1044 \u1001\u102f\u1014\u103e\u1005\u103a \u1029\u1002\u102f\u1010\u103a\u101c\u1010\u103d\u1004\u103a \u1011\u102f\u1010\u103a\u1015\u103c\u1014\u103a\u1001\u1032\u1037\u101e\u100a\u103a\u104b<\/strong>. \u1019\u1000\u103c\u102c\u101e\u1031\u1038\u1019\u102e\u1000 \u1021\u1015\u103a\u1012\u102d\u1010\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a-<\/p>\n<ol>\n<li><strong>\u1021\u1015\u103a\u1012\u102d\u1010\u103a\u101c\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c TRV (\u101a\u102c\u101a\u102e\u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1011\u1030\u1011\u1031\u102c\u1004\u103a\u101b\u1031\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038) \u1010\u1014\u103a\u1016\u102d\u102f\u1038\u1019\u103b\u102c\u1038-<\/strong> \u1005\u1005\u103a\u1019\u103e\u1014\u103a\u101e\u1031\u102c\u1000\u1019\u1039\u1018\u102c\u1005\u1014\u1005\u103a\u104f \u1021\u1015\u103c\u102f\u1021\u1019\u1030\u1014\u103e\u1004\u1037\u103a \u1014\u1031\u102c\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1011\u101b\u1014\u103a\u1005\u1016\u1031\u102c\u103a\u1019\u102c\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u1004\u103a\u101f\u1015\u103a\u1005\u1031\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1007\u101a\u102c\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c\u1010\u103d\u1004\u103a TRV \u1015\u102b\u101b\u102c\u1019\u102e\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u101e\u1005\u103a\u1019\u103b\u102c\u1038-<\/strong> \u1005\u1036\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>15.5kV, 27kV \u1014\u103e\u1004\u1037\u103a 40.5kV<\/strong> \u1012\u1031\u101e\u1006\u102d\u102f\u1004\u103a\u101b\u102c\u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103b\u102c\u1038 (\u1021\u1011\u1030\u1038\u101e\u1016\u103c\u1004\u1037\u103a \u1021\u102c\u101b\u103e\u1014\u103e\u1004\u1037\u103a \u1021\u101b\u103e\u1031\u1037\u1021\u101c\u101a\u103a\u1015\u102d\u102f\u1004\u103a\u1038) \u1000\u102d\u102f \u101c\u103d\u103e\u1019\u103a\u1038\u1001\u103c\u102f\u1036\u101b\u1014\u103a<\/li>\n<li><strong>\u1015\u103c\u1004\u103a\u1006\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c terminal \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1021\u1013\u102d\u1015\u1039\u1015\u102c\u101a\u103a\u1016\u103d\u1004\u1037\u103a\u1006\u102d\u102f\u1001\u103b\u1000\u103a-<\/strong> \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u101b\u100a\u103a\u101b\u103d\u101a\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a terminal 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(\u1013\u102c\u1010\u103a\u1004\u103d\u1031\u1037\u1000\u102c\u101b\u1036\u1011\u102c\u1038\u101e\u1031\u102c \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c) \u1014\u103e\u1004\u1037\u103a \u101e\u1031\u1006\u102f\u1036\u1038\u1014\u1031\u101e\u1031\u102c\u1010\u102d\u102f\u1004\u103a\u1000\u102e\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a\u101e\u102c \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u1015\u103c\u102e\u1038 \u1015\u102f\u1036\u1019\u103e\u1014\u103a VCB \u1019\u103b\u102c\u1038\u1019\u101f\u102f\u1010\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1010\u102d\u1021\u1000\u103b\u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u101e\u1018\u102c\u101d\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c 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\u1007\u101a\u102c\u1038\u1000\u103d\u1000\u103a\u1021\u1001\u103c\u1031\u1001\u1036\u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036 \u1021\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u101c\u1032\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030 \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1000\u102d\u102f \u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1010\u102d\u102f\u1004\u103a\u1038 \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1021\u1001\u103c\u1031\u1001\u1036\u1019\u1030\u101e\u100a\u103a \u1010\u100a\u103a\u1019\u103c\u1032\u1014\u1031\u101e\u100a\u103a- <strong>1,000V \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1010\u1005\u103a\u1001\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/strong>, \u1011\u102d\u102f\u1037\u1021\u1015\u103c\u1004\u103a 1kV-38kV \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a\u104a \u104e\u1004\u103a\u1038\u101e\u100a\u103a VCB \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u101f\u102f \u1021\u1019\u103c\u1032\u101c\u102d\u102f\u101c\u102d\u102f \u1006\u102d\u102f\u101c\u102d\u102f\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1024\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1011\u1015\u103a\u1019\u1014\u1031\u101e\u1014\u100a\u103a\u1038\u104b<\/h3>\n<p>1,000V \u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u101e\u100a\u103a \u1000\u103b\u1015\u1014\u103a\u1038\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u1031\u1011\u102f\u101c\u1031\u101e\u100a\u103a \u201c\u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u1031\u102c arc 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\u1021\u1016\u103c\u1005\u103a\u1019\u103e\u1014\u103a\u1000\u102d\u102f \u1015\u102f\u1036\u1005\u1036\u1001\u103b\u1001\u1032\u1037\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>1kV \u1021\u1031\u102c\u1000\u103a-<\/strong> \u101c\u1031\u1021\u1001\u103c\u1031\u1001\u1036 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1015\u102f\u1036\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u1031\u102c\u1021\u102d\u1010\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101c\u102f\u1015\u103a\u101c\u102f\u1015\u103a\u101e\u100a\u103a\u104b Arc \u101c\u103b\u103e\u1031\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1011\u102d\u101b\u1031\u102c\u1000\u103a\u101e\u100a\u103a\u104b \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1000\u103b\u1005\u103a\u101c\u103b\u1005\u103a\u1015\u103c\u102e\u1038 \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u1021\u101b \u101e\u1000\u103a\u101e\u102c\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>1kV \u1021\u1011\u1000\u103a-<\/strong> \u101c\u1031\u101e\u100a\u103a \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1019\u1000\u103b\u101e\u1031\u102c \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c arc \u101c\u103b\u103e\u1031\u102c\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b \u1000\u103b\u102d\u102f\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1006\u102e\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1001\u103c\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u101c\u102f\u1036\u1001\u103c\u102f\u1036\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u101e\u1031\u102c arc \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1016\u102f\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a (\u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1015\u102d\u102f\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c SF6) \u101e\u100a\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101c\u102c\u101e\u100a\u103a\u104b.<\/li>\n<\/ul>\n<p>\u101e\u1004\u103a\u101e\u100a\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1010\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1014\u1031\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a \u1015\u1011\u1019\u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103e\u102c \u201cACB \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a VCB?\u201d \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u201c\u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u104f\u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000 \u1018\u101a\u103a\u101c\u1031\u102c\u1000\u103a\u101c\u1032\u201d \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1011\u102d\u102f\u1021\u1016\u103c\u1031\u101e\u100a\u103a \u101e\u1004\u1037\u103a\u1021\u102c\u1038 \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u101e\u102d\u102f\u1037 \u100a\u103d\u103e\u1014\u103a\u1015\u103c\u1015\u103c\u102e\u1038 \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u101e\u102d\u102f\u1037 \u100a\u103d\u103e\u1014\u103a\u1015\u103c\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>-\u1021\u1005\u103d\u1014\u103a\u1021\u1016\u103b\u102c\u1038#\u1043:<\/strong> <em>\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1012\u1031\u1010\u102c\u1005\u102c\u101b\u103d\u1000\u103a\u1000\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u101e\u102f\u1036\u1038\u101e\u1015\u103a\u101e\u100a\u1037\u103a\u1021\u1001\u102b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1019\u100a\u103a\u101e\u100a\u1037\u103a IEC \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a IEC 60947-2 \u1000\u102d\u102f \u1005\u102c\u101b\u1004\u103a\u1038\u1015\u103c\u102f\u1005\u102f\u1015\u102b\u1000 \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c\u1018\u101b\u102d\u1010\u103a\u1000\u102c (\u22641kV) \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a IEC 62271-100 \u1000\u102d\u102f \u1005\u102c\u101b\u1004\u103a\u1038\u1015\u103c\u102f\u1005\u102f\u1015\u102b\u1000 \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\/\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1018\u101b\u102d\u1010\u103a\u1000\u102c (&gt;1kV) \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f\u101e\u100a\u103a \u101e\u1004\u1037\u103a\u1021\u102c\u1038 \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1010\u1014\u103a\u1038\u1000\u102d\u102f \u1001\u103b\u1000\u103a\u1001\u103b\u1004\u103a\u1038\u1015\u103c\u1031\u102c\u1015\u103c\u101e\u100a\u103a\u104b.<\/em><\/p>\n<hr \/>\n<h2>\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038- \u101e\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1005\u1031\u1001\u103c\u1004\u103a\u1038<\/h2>\n<p>ACB \u1014\u103e\u1004\u1037\u103a VCB \u1021\u1000\u103c\u102c\u1038 \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1014\u103e\u1005\u103a\u101e\u1000\u103a\u101b\u102c\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u104f \u101b\u102f\u1015\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u104f \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101d\u102d\u101e\u1031\u101e\u101c\u1000\u1039\u1001\u100f\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1005\u1031\u1001\u103c\u1004\u103a\u1038\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p>\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1019\u103c\u1031\u1015\u102f\u1036\u1006\u103d\u1032\u101b\u1019\u100a\u103a\u1000\u102d\u102f \u1024\u1010\u103d\u1004\u103a\u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>ACBs \u1000\u102d\u102f \u1018\u101a\u103a\u1021\u1001\u103b\u102d\u1014\u103a\u1019\u103e\u102c \u101e\u102f\u1036\u1038\u1019\u101c\u1032\u104b<\/h3>\n<p>\u101c\u1031\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a<\/strong> \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u101c\u1000\u103a\u101b\u103e\u102d\u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u101e\u100a\u103a \u1000\u103b\u1005\u103a\u101c\u103b\u1005\u103a\u101e\u1031\u102c\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1000\u103c\u102c\u101b\u103e\u100a\u103a\u1005\u103d\u102c \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1000\u103c\u102c\u1038\u1000\u102c\u101c\u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1005\u1036\u1015\u103c\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ul>\n<li><strong>400V \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 690V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u1001\u103c\u1004\u103a\u1038-<\/strong> \u1005\u1000\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1005\u1014\u1005\u103a\u1021\u1019\u103b\u102c\u1038\u1005\u102f\u104f \u1000\u103b\u1031\u102c\u101b\u102d\u102f\u1038<\/li>\n<li><strong>\u1019\u1031\u102c\u103a\u1010\u102c\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (MCCs):<\/strong> \u1015\u1014\u1037\u103a\u1019\u103b\u102c\u1038\u104a \u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u104a \u1016\u102d\u1021\u102c\u1038\u1015\u1031\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1000\u102f\u1014\u103a\u1010\u1004\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1001\u103c\u102c\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a<\/li>\n<li><strong>\u1015\u102b\u101d\u102b\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (PCCs):<\/strong> \u1005\u1000\u103a\u1019\u103e\u102f\u1005\u1000\u103a\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1005\u1009\u103a\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1013\u102d\u1000\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u1001\u103c\u1004\u103a\u1038<\/li>\n<li><strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1021\u1013\u102d\u1000\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1021\u1000\u1014\u1037\u103a\u1019\u103b\u102c\u1038 (LVMDP):<\/strong> \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1026\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1026\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a\u1014\u103e\u1004\u1037\u103a \u1021\u1013\u102d\u1000\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f-<\/strong> \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1021\u101b\u1014\u103a\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1019\u103b\u102c\u1038 (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 480V \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 600V)<\/li>\n<li><strong>\u101b\u1031\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u1019\u103a\u1038\u101c\u103d\u1014\u103a-<\/strong> \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u101e\u1004\u103a\u1039\u1018\u1031\u102c\u1015\u102b\u101d\u102b\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u1001\u103c\u1004\u103a\u1038 (IEC 60092 \u101c\u100a\u103a\u1038 \u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u101e\u100a\u103a)<\/li>\n<\/ul>\n<p><strong>ACBs \u101e\u100a\u103a \u1018\u100f\u1039\u100d\u102c\u101b\u1031\u1038\u1021\u101b \u1021\u1013\u102d\u1015\u1039\u1015\u102c\u101a\u103a\u101b\u103e\u102d\u101e\u100a\u1037\u103a\u1021\u1001\u102b-<\/strong><\/p>\n<ul>\n<li><strong>\u1000\u1014\u1026\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u1000\u103a\u101e\u102c\u1019\u103e\u102f\u1000\u102d\u102f \u1026\u1038\u1005\u102c\u1038\u1015\u1031\u1038\u1001\u103c\u1004\u103a\u1038-<\/strong> \u101b\u1004\u103a\u1038\u1014\u103e\u102e\u1038\u1019\u103c\u103e\u102f\u1015\u103a\u1014\u103e\u1036\u1019\u103e\u102f\u1018\u1010\u103a\u1002\u103b\u1000\u103a \u1021\u1000\u1014\u1037\u103a\u1021\u101e\u1010\u103a\u101b\u103e\u102d\u1015\u103c\u102e\u1038 \u101e\u1004\u103a\u104c \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u103e\u102d\u1015\u102b\u1000<\/li>\n<li><strong>\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038<\/strong> 6,000A+ \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u103c\u102e\u1038 ACB \u1015\u102f\u1036\u1005\u1036\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u101e\u1000\u103a\u101e\u102c\u101e\u1031\u102c\u1021\u1001\u102b<\/li>\n<li><strong>\u101b\u103e\u102d\u1015\u103c\u102e\u1038\u101e\u102c\u1038 LV \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c\u1011\u1032\u101e\u102d\u102f\u1037 \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038<\/strong> ACB \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c panel \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u101c\u102c\u1038\u1010\u1030\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101e\u100a\u1037\u103a\u1021\u1001\u102b<\/li>\n<\/ul>\n<p><strong>\u1019\u103e\u1010\u103a\u101e\u102c\u1038\u1011\u102c\u1038\u101b\u1014\u103a \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong><\/p>\n<ul>\n<li>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u101d\u1014\u103a\u1011\u102f\u1015\u103a\u101d\u1014\u103a\u1015\u102d\u102f\u1038- \u1046 \u101c\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1043-\u1045 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a \u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1019\u103b\u103e\u1031\u102c\u103a\u101c\u1004\u1037\u103a\u1015\u102b\u104b<\/li>\n<li>\u1001\u103c\u1031\u101b\u102c\u1001\u1036- ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a arc chute \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u101c\u102c\u1038\u1010\u1030 VCB \u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1000\u103c\u102e\u1038\u1015\u103c\u102e\u1038 \u1015\u102d\u102f\u101c\u1031\u1038\u101e\u100a\u103a\u104b<\/li>\n<li>\u1006\u1030\u100a\u1036\u101e\u1036- \u101c\u1031\u1011\u1032\u1010\u103d\u1004\u103a arc \u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u101e\u100a\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1011\u1000\u103a \u1015\u102d\u102f\u1000\u103b\u101a\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>\u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101e\u1000\u103a\u1010\u1019\u103a\u1038 \u1021\u1000\u1014\u1037\u103a\u1021\u101e\u1010\u103a\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038- \u1021\u1013\u102d\u1000 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1019\u103d\u1019\u103a\u1038\u1019\u1036\u1001\u103c\u1004\u103a\u1038\u1019\u1015\u103c\u102f\u1019\u102e \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f \u1041\u1040,\u1040\u1040\u1040 \u1019\u103e \u1041\u1045,\u1040\u1040\u1040 \u1000\u103c\u102d\u1019\u103a<\/li>\n<\/ul>\n<h3>VCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1004\u1037\u103a\u101e\u100a\u1037\u103a\u1021\u1001\u102b<\/h3>\n<p>\u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u103d\u103e\u1019\u103a\u1038\u1019\u102d\u102f\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>\u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong> \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u1019\u103e\u102f\u104a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1014\u100a\u103a\u1038\u1015\u102b\u1038\u1001\u103c\u1004\u103a\u1038\u104a \u1000\u103b\u1005\u103a\u101c\u103b\u1005\u103a\u101e\u1031\u102c\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101e\u1000\u103a\u1010\u1019\u103a\u1038\u101b\u103e\u100a\u103a\u1001\u103c\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1000\u1014\u1026\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1019\u103b\u103e\u1010\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1005\u1036\u1015\u103c\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ul>\n<li><strong>11kV, 22kV, 33kV \u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1001\u103d\u1032\u101b\u102f\u1036\u1019\u103b\u102c\u1038<\/strong> \u1019\u1030\u101c\u1014\u103e\u1004\u1037\u103a \u1012\u102f\u1010\u102d\u101a\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038 \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c<\/li>\n<li><strong>\u1005\u1000\u103a\u1019\u103e\u102f MV \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c<\/strong> Ring main unit (RMU) \u1019\u103b\u102c\u1038\u104a \u101e\u1010\u1039\u1010\u102f\u1016\u103c\u1004\u1037\u103a\u1000\u102c\u101b\u1036\u1011\u102c\u1038\u101e\u1031\u102c \u1001\u101c\u102f\u1010\u103a\u1018\u102f\u1010\u103a\u1019\u103b\u102c\u1038\u104a pad-mounted \u1011\u101b\u1014\u103a\u1005\u1016\u1031\u102c\u103a\u1019\u102c\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103c\u1004\u1037\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038<\/strong> 1,000 HP \u1021\u1011\u1000\u103a induction \u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 3.3kV, 6.6kV \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 11kV)<\/li>\n<li><strong>Transformer \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a-<\/strong> \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1014\u103e\u1004\u1037\u103a \u1015\u102b\u101d\u102b\u1011\u101b\u1014\u103a\u1005\u1016\u1031\u102c\u103a\u1019\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1019\u1030\u101c\u1018\u1000\u103a\u1001\u103c\u1019\u103a\u1038 \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101b\u1031\u1038\u1005\u1000\u103a\u101b\u102f\u1036\u1019\u103b\u102c\u1038<\/strong> \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u104a \u1018\u1030\u1010\u102c\u101b\u102f\u1036\u1021\u101b\u1014\u103a\u1015\u102b\u101d\u102b<\/li>\n<li><strong>\u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1015\u103c\u100a\u1037\u103a\u1016\u103c\u102d\u102f\u1038\u1019\u103c\u1032\u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong> \u101c\u1031\u1021\u102c\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101c\u101a\u103a\u101a\u102c \u1005\u102f\u1006\u1031\u102c\u1004\u103a\u1038\u101b\u1031\u1038\u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038\u104a \u1006\u102d\u102f\u101c\u102c\u1021\u1004\u103a\u1017\u102c\u1010\u102c \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u101b\u1014\u103a\u1005\u1016\u1031\u102c\u103a\u1019\u102c\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u101e\u1010\u1039\u1010\u102f\u1010\u103d\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u1031\u1038\u101c\u1036\u101e\u1031\u102c\u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038<\/strong> \u1016\u102f\u1014\u103a\u1019\u103e\u102f\u1014\u1037\u103a\u104a \u1021\u1005\u102d\u102f\u1013\u102c\u1010\u103a\u1014\u103e\u1004\u1037\u103a \u1000\u103c\u1019\u103a\u1038\u1010\u1019\u103a\u1038\u101e\u1031\u102c\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1000 ACB \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1015\u103c\u103f\u1014\u102c\u1016\u103c\u1005\u103a\u1005\u1031\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c<\/li>\n<\/ul>\n<p><strong>VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u101e\u1031\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1005\u101b\u102c\u1016\u103c\u1005\u103a\u101e\u100a\u1037\u103a\u1021\u1001\u102b<\/strong><\/p>\n<ul>\n<li><strong>\u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 &gt;1kV AC<\/strong> \u101b\u1030\u1015\u1017\u1031\u1012\u1014\u103e\u1004\u1037\u103a IEC 62271-100 \u101e\u100a\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1001\u103c\u1004\u103a\u1038\u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong> VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a 30,000+ \u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a (\u1021\u1001\u103b\u102d\u102f\u1037\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a 100,000 \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u100a\u103a)<\/li>\n<li><strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1001\u103d\u1004\u1037\u103a \u1021\u1000\u1014\u1037\u103a\u1021\u101e\u1010\u103a\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038<\/strong> \u101d\u1031\u1038\u101c\u1036\u1001\u1031\u102b\u1004\u103a\u101e\u102e\u101e\u1031\u102c \u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1001\u103d\u1032\u101b\u102f\u1036\u1019\u103b\u102c\u1038\u104a \u1000\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u1015\u101c\u1000\u103a\u1016\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u104a \u1021\u102d\u1019\u103a\u1001\u1031\u102b\u1004\u103a\u1019\u102d\u102f\u1038\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1046 \u101c\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a ACB \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1019\u1000\u103b\u1015\u102b\u104b<\/li>\n<li><strong>\u101e\u1000\u103a\u1010\u1019\u103a\u1038\u101b\u103e\u100a\u103a \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1000\u102d\u102f \u1021\u102c\u101b\u102f\u1036\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/strong> \u1014\u103e\u1005\u103a \u1042\u1040-\u1043\u1040 \u1021\u1010\u103d\u1004\u103a\u1038 \u1015\u102d\u102f\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u1019\u103e\u102f\u104f \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u100a\u103a \u1000\u1014\u1026\u1038 \u101b\u1004\u103a\u1038\u1014\u103e\u102e\u1038\u1019\u103c\u103e\u102f\u1015\u103a\u1014\u103e\u1036\u1019\u103e\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1011\u1000\u103a \u101e\u102c\u101c\u103d\u1014\u103a\u101e\u1031\u102c\u1021\u1001\u102b<\/li>\n<\/ul>\n<p><strong>\u1000\u103c\u1019\u103a\u1038\u1010\u1019\u103a\u1038\u101e\u1031\u102c\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1010\u103d\u1004\u103a \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong><\/p>\n<ul>\n<li>\u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u101f\u102c\u1014\u101a\u103a\u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1016\u102f\u1014\u103a\u1019\u103e\u102f\u1014\u1037\u103a\u104a \u1005\u102d\u102f\u1011\u102d\u102f\u1004\u103a\u1038\u1006\u104a \u1006\u102c\u1038\u1019\u103e\u102f\u1014\u103a\u1019\u103b\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1019\u103c\u1004\u1037\u103a (\u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u101b\u1031\u1038\u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1011\u102d) \u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1019\u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1015\u102b\u104b<\/li>\n<li>\u101e\u1014\u1037\u103a\u101b\u103e\u1004\u103a\u1038\u101b\u1031\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1014\u103a arc chute \u1019\u101b\u103e\u102d\u1015\u102b\u104b<\/li>\n<li>\u1006\u102d\u1010\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u103d\u102c\u101c\u100a\u103a\u1015\u1010\u103a\u1001\u103c\u1004\u103a\u1038 (\u101c\u1030\u1014\u1031\u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038\u101b\u103e\u102d \u1019\u102d\u102f\u1038\u101c\u102f\u1036\u101c\u1031\u101c\u102f\u1036 \u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1001\u103d\u1032\u101b\u102f\u1036\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a)<\/li>\n<li>\u1000\u103b\u1005\u103a\u101c\u103b\u1005\u103a\u101e\u1031\u102c \u1001\u103c\u1031\u101b\u102c\u1001\u1036 (\u1005\u103b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1021\u102d\u1019\u103a\u1001\u103c\u1036\u1019\u103c\u1031\u101b\u103e\u102d \u1019\u103c\u102d\u102f\u1037\u1015\u103c \u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1001\u103d\u1032\u101b\u102f\u1036\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a)<\/li>\n<\/ul>\n<h3>\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u1007\u101a\u102c\u1038- ACB \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a VCB \u101c\u102c\u1038\u104b<\/h3>\n<table border=\"\">\n<tbody>\n<tr>\n<td><strong>\u101e\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u104f \u101c\u1000\u1039\u1001\u100f\u102c\u1019\u103b\u102c\u1038<\/strong><\/td>\n<td><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/strong><\/td>\n<td><strong>\u1021\u1013\u102d\u1000\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1004\u103a\u1038<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u2264 1,000V AC<\/td>\n<td>ACB<\/td>\n<td>IEC 60947-2 \u1005\u102e\u101b\u1004\u103a\u1015\u102d\u102f\u1004\u103a\u1001\u103d\u1004\u1037\u103a; \u101c\u1031\u1016\u103c\u1004\u1037\u103a \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1017\u102d\u102f\u1037\u1021\u102c\u1038 &gt; 1,000V AC<\/td>\n<td>VCB<\/td>\n<td>IEC 62271-100 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a; \u101c\u1031\u101e\u100a\u103a arc \u1000\u102d\u102f \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1019\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u104b<\/td>\n<\/tr>\n<tr>\n<td>LV \u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 (&gt;5,000A)<\/td>\n<td>ACB<\/td>\n<td>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u101c\u103d\u1014\u103a\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u101e\u1000\u103a\u101e\u102c\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1001\u103c\u1004\u103a\u1038 (&gt;20\/\u101b\u1000\u103a)<\/td>\n<td>VCB<\/td>\n<td>ACB \u104f 10,000 \u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u1000 30,000+ \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1000\u103c\u1019\u103a\u1038\u1010\u1019\u103a\u1038\u101e\u1031\u102c\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a (\u1016\u102f\u1014\u103a\u1019\u103e\u102f\u1014\u1037\u103a\u104a \u1006\u102c\u1038\u104a \u1005\u102d\u102f\u1011\u102d\u102f\u1004\u103a\u1038\u1006)<\/td>\n<td>VCB<\/td>\n<td>\u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1014\u103e\u1031\u102c\u1000\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u1005\u1000\u103a\u101e\u100a\u103a \u100a\u1005\u103a\u100a\u1019\u103a\u1038\u1019\u103e\u102f\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1019\u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1015\u102b\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1001\u103d\u1004\u1037\u103a \u1021\u1000\u1014\u1037\u103a\u1021\u101e\u1010\u103a\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038<\/td>\n<td>VCB<\/td>\n<td>\u1043-\u1045 \u1014\u103e\u1005\u103a \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1000\u103c\u102c\u1038\u1000\u102c\u101c\u1014\u103e\u1004\u1037\u103a ACB \u104f \u1046 \u101c\u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1042\u1040+ \u1014\u103e\u1005\u103a \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1000\u102d\u102f \u1021\u102c\u101b\u102f\u1036\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/td>\n<td>VCB<\/td>\n<td>\u1000\u1014\u1026\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 TCO \u1014\u102d\u1019\u1037\u103a\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1000\u103b\u1015\u103a\u1010\u100a\u103a\u1038\u101e\u1031\u102c\u1014\u1031\u101b\u102c \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/td>\n<td>VCB<\/td>\n<td>\u1000\u103b\u1005\u103a\u101c\u103b\u1005\u103a\u101e\u1031\u102c\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038; arc chute \u1011\u102f\u1011\u100a\u103a\u1019\u101b\u103e\u102d\u1015\u102b\u104b<\/td>\n<\/tr>\n<tr>\n<td>\u1018\u1010\u103a\u1002\u103b\u1000\u103a \u1021\u1000\u1014\u1037\u103a\u1021\u101e\u1010\u103a\u101b\u103e\u102d\u101e\u1031\u102c \u101b\u1004\u103a\u1038\u1014\u103e\u102e\u1038\u1019\u103c\u103e\u102f\u1015\u103a\u1014\u103e\u1036\u1019\u103e\u102f\u1015\u101b\u1031\u102c\u1002\u103b\u1000\u103a<\/td>\n<td>ACB (\u22641kV \u1016\u103c\u1005\u103a\u101c\u103b\u103e\u1004\u103a)<\/td>\n<td>\u1000\u1014\u1026\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u101e\u1000\u103a\u101e\u102c\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1018\u1010\u103a\u1002\u103b\u1000\u103a\u1000\u102d\u102f \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u1015\u102b\u104b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20226\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Circuit-breaker-selection-flowchart.webp\" alt=\"Circuit breaker selection flowchart\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Circuit-breaker-selection-flowchart.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Circuit-breaker-selection-flowchart-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Circuit-breaker-selection-flowchart-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Circuit-breaker-selection-flowchart-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Circuit-breaker-selection-flowchart-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><em>\u1015\u102f\u1036 \u1045: \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1015\u102f\u1036\u104b \u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u1021\u1013\u102d\u1000\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 1,000V \u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u1021\u1015\u1031\u102b\u103a\u1019\u1030\u1010\u100a\u103a\u104d ACB (\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038) \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a VCB (\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a) \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u102d\u102f\u1037 \u100a\u103d\u103e\u1014\u103a\u1000\u103c\u102c\u1038\u101e\u100a\u103a\u104b.<\/em><\/p>\n<p><strong>-\u1021\u1005\u103d\u1014\u103a\u1021\u1016\u103b\u102c\u1038#\u1044:<\/strong> <em>\u101e\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a 1kV \u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u1021\u1014\u102e\u1038\u1010\u1005\u103a\u101d\u102d\u102f\u1000\u103a\u1010\u103d\u1004\u103a\u101b\u103e\u102d\u1015\u102b\u1000 VCB \u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u104b ACB \u1000\u102d\u102f \u104e\u1004\u103a\u1038\u104f\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1021\u1011\u102d \u1006\u103d\u1032\u1006\u1014\u1037\u103a\u101b\u1014\u103a \u1019\u1000\u103c\u102d\u102f\u1038\u1005\u102c\u1038\u1015\u102b\u1014\u103e\u1004\u1037\u103a\u104b <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038<\/strong> \u201c\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u201d \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u2014\u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u101b\u1030\u1015\u1017\u1031\u1012\u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1021\u1015\u102d\u102f\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1016\u103c\u1004\u1037\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1006\u103d\u1032\u1015\u102b\u104b.<\/em><\/p>\n<hr \/>\n<h2>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a- \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1014\u103e\u1005\u103a \u1042\u1040 \u1021\u1010\u103d\u1004\u103a\u1038 \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u1000\u103a\u101e\u102c\u101e\u1014\u100a\u103a\u1038\u104b<\/h2>\n<p>\u1011\u102d\u102f $15,000 ACB \u101e\u100a\u103a $25,000 VCB \u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101c\u103b\u103e\u1004\u103a \u1006\u103d\u1032\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u1015\u102f\u1036\u101b\u101e\u100a\u103a\u104b \u1041\u1045 \u1014\u103e\u1005\u103a\u1000\u103b\u1031\u102c\u103a\u1021\u1011\u102d \u101e\u1004\u103a\u1039\u1001\u103b\u102c\u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038 \u1019\u101c\u102f\u1015\u103a\u1019\u1001\u103b\u1004\u103a\u1038\u104b.<\/p>\n<p>\u1000\u103c\u102d\u102f\u1006\u102d\u102f\u1015\u102b\u1010\u101a\u103a\u104b <strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a<\/strong>\u2014\u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u100a\u102e\u1019\u103b\u103e\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1014\u103a\u101c\u103e\u1014\u103a\u1015\u1031\u1038\u101e\u100a\u1037\u103a \u101d\u103e\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1011\u1015\u103a\u1010\u101c\u1032\u101c\u1032\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u104b.<\/p>\n<h3>ACB \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f- \u1010\u1005\u103a\u1014\u103e\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u1014\u103e\u1005\u103a\u1000\u103c\u102d\u1019\u103a\u101d\u1014\u103a\u1011\u102f\u1015\u103a\u101d\u1014\u103a\u1015\u102d\u102f\u1038<\/h3>\n<p>Air Circuit Breaker \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u104f\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a arc chute \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u103d\u1004\u1037\u103a\u101c\u1004\u103a\u1038\u101e\u1031\u102c\u101c\u1031\u1011\u102f\u1011\u1032\u1010\u103d\u1004\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u104a \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u103b\u101e\u1031\u102c \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u101e\u100a\u103a\u104b \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a IEC 60947-2 \u1019\u103e \u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1000\u102d\u102f \u1024\u1010\u103d\u1004\u103a\u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b<\/p>\n<p><strong>\u1046 \u101c\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a (\u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038)<\/strong><\/p>\n<ul>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1015\u1031\u102b\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1019\u103e\u102f \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u101b\u1031\u102c\u1004\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u101b\u103e\u102d\u1019\u101b\u103e\u102d\u1000\u102d\u102f \u1021\u1019\u103c\u1004\u103a\u1021\u102c\u101b\u102f\u1036\u1016\u103c\u1004\u1037\u103a \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>Arc chute \u101e\u1014\u1037\u103a\u101b\u103e\u1004\u103a\u1038\u101b\u1031\u1038 (\u1000\u102c\u1017\u103d\u1014\u103a\u1021\u1014\u100a\u103a\u1021\u1014\u103e\u1005\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u1010\u1039\u1010\u102f\u1021\u1004\u103d\u1031\u1037\u1021\u1000\u103c\u103d\u1004\u103a\u1038\u1021\u1000\u103b\u1014\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1000\u103d\u102c\u101f\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u101e\u102f\u1010\u103a\u101e\u1004\u103a\u1019\u103e\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>\u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038 (\u101c\u1000\u103a\u1005\u103d\u1032\u1014\u103e\u1004\u1037\u103a \u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a)<\/li>\n<li>Terminal \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f torque \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>\u101b\u103d\u1031\u1037\u101c\u103b\u102c\u1038\u1014\u1031\u101e\u1031\u102c \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038 (\u1001\u1031\u102b\u1000\u103a\u101b\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u104a \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u104a \u101d\u1000\u103a\u101d\u1036\u1019\u103b\u102c\u1038) \u1001\u103b\u1031\u102c\u1006\u102e\u1011\u100a\u1037\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>Overcurrent \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u101a\u1030\u1014\u1005\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<\/ul>\n<p><strong>\u1043-\u1045 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a (\u1021\u1013\u102d\u1000\u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f)<\/strong><\/p>\n<ul>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038 (\u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u104f\u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1015\u102b\u1000)<\/li>\n<li>Arc chute \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1015\u102b\u1000 \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>\u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1001\u102f\u1001\u1036\u1019\u103e\u102f\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038 (megger \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li>\u1011\u102d\u1010\u103d\u1031\u1037\u1001\u102f\u1001\u1036\u1019\u103e\u102f\u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>\u101c\u102f\u1036\u1038\u101d\u1016\u103c\u102f\u1010\u103a\u1010\u1015\u103a\u1015\u103c\u102e\u1038 \u101e\u1014\u1037\u103a\u101b\u103e\u1004\u103a\u1038\u101b\u1031\u1038\u101c\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>\u101f\u1031\u102c\u1004\u103a\u1038\u1014\u103d\u1019\u103a\u1038\u1014\u1031\u101e\u1031\u102c \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<\/ul>\n<p><strong>\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038 (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1012\u1031\u101e\u1021\u101c\u102d\u102f\u1000\u103a \u1000\u103d\u1032\u1015\u103c\u102c\u1038\u101e\u100a\u103a)<\/strong><\/p>\n<ul>\n<li>\u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038- \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a $600-$1,000 (\u1000\u1014\u103a\u1011\u101b\u102d\u102f\u1000\u103a\u1010\u102c\u1021\u101c\u102f\u1015\u103a\u101e\u1019\u102c\u1038- \u1043-\u1044 \u1014\u102c\u101b\u102e)<\/li>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038- $2,500-$4,000 (\u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038 + \u1021\u101c\u102f\u1015\u103a\u101e\u1019\u102c\u1038)<\/li>\n<li>Arc chute \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038- $1,500-$2,500 (\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1015\u102b\u1000)<\/li>\n<li>\u1021\u101b\u1031\u1038\u1015\u1031\u102b\u103a\u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1001\u1031\u102b\u103a\u1006\u102d\u102f\u1019\u103e\u102f (\u1005\u1005\u103a\u1006\u1031\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038\u1010\u103d\u1004\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1015\u102b\u1000)- $1,500-$3,000<\/li>\n<\/ul>\n<p>\u1041\u1045 \u1014\u103e\u1005\u103a\u101e\u1000\u103a\u1010\u1019\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c ACB \u1021\u1010\u103d\u1000\u103a-<\/p>\n<ul>\n<li>\u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038- \u1041\u1045 \u1014\u103e\u1005\u103a \u00d7 \u1042 \u1000\u103c\u102d\u1019\u103a\/\u1014\u103e\u1005\u103a \u00d7 \u1015\u103b\u1019\u103a\u1038\u1019\u103b\u103e $800 = <strong>$24,000<\/strong><\/li>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038- (\u1041\u1045 \u1014\u103e\u1005\u103a \u00f7 \u1044 \u1014\u103e\u1005\u103a) \u00d7 $3,000 = <strong>$9,000<\/strong> (\u1043 \u1000\u103c\u102d\u1019\u103a\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li>\u1019\u1019\u103b\u103e\u1031\u102c\u103a\u101c\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038- \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f \u1041 \u1000\u103c\u102d\u1019\u103a \u00d7 $2,000 = \u101f\u102f \u101a\u1030\u1006\u1015\u102b\u104b <strong>$2,000<\/strong><\/li>\n<li><strong>\u1041\u1045 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f- $35,000<\/strong><\/li>\n<\/ul>\n<p>\u1019\u1030\u101c\u101d\u101a\u103a\u101a\u1030\u1019\u103e\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a ($15,000) \u1000\u102d\u102f\u1011\u100a\u1037\u103a\u1015\u102b\u104a \u101e\u1004\u103a\u104f <strong>\u1041\u1045 \u1014\u103e\u1005\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u1019\u103e\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u100a\u103a ~$50,000 \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/strong>.<\/p>\n<p>\u1012\u102b\u1000 <strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a<\/strong>. \u1015\u102b\u104b \u1021\u101c\u102f\u1015\u103a\u101e\u1019\u102c\u1038\u1014\u102c\u101b\u102e\u1019\u103b\u102c\u1038\u104a \u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u102f\u1036\u1038\u1005\u103d\u1032\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u101e\u1004\u103a\u1015\u1031\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u101e\u100a\u103a\u2014\u1014\u103e\u1005\u103a\u1005\u1009\u103a\u104a \u1010\u1005\u103a\u1014\u103e\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u1014\u103e\u1005\u103a\u1000\u103c\u102d\u1019\u103a\u104a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u104f \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a\u101c\u102f\u1036\u1038\u104b.<\/p>\n<h3>VCB \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f- \u1010\u101e\u1000\u103a\u1010\u102c\u1021\u1010\u103d\u1000\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u104f \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a<\/h3>\n<p>Vacuum Circuit Breaker \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u100a\u102e\u1019\u103b\u103e\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1014\u103a\u101c\u103e\u1014\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1016\u102f\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u101e\u100a\u103a \u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1013\u102c\u1010\u103a\u1010\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u104a \u100a\u1005\u103a\u100a\u1019\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1019\u103e \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u101b\u101c\u1012\u103a- \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1000\u103c\u102c\u1038\u1000\u102c\u101c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u102d\u101e\u102d\u101e\u102c\u101e\u102c \u1010\u102d\u102f\u1038\u1001\u103b\u1032\u1037\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1043-\u1045 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038)<\/strong><\/p>\n<ul>\n<li>\u1021\u1019\u103c\u1004\u103a\u1021\u102c\u101b\u102f\u1036\u1016\u103c\u1004\u1037\u103a \u1015\u103c\u1004\u103a\u1015\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>\u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1021\u101b\u1031\u1021\u1010\u103d\u1000\u103a \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 (\u1000\u1031\u102c\u1004\u103a\u1010\u102c \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1012\u1005\u103a\u1002\u103b\u1005\u103a\u1010\u101a\u103a\u1021\u1004\u103a\u1010\u102c\u1016\u1031\u1037\u1005\u103a\u1019\u103e\u1010\u1005\u103a\u1006\u1004\u1037\u103a)<\/li>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u101f\u1031\u102c\u1004\u103a\u1038\u1014\u103d\u1019\u103a\u1038\u1019\u103e\u102f\u100a\u103d\u103e\u1014\u103a\u1015\u103c\u1001\u103b\u1000\u103a \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 (VCB \u1021\u1001\u103b\u102d\u102f\u1037\u1010\u103d\u1004\u103a \u1015\u103c\u1004\u103a\u1015\u100a\u103d\u103e\u1014\u103a\u1015\u103c\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101b\u103e\u102d\u101e\u100a\u103a)<\/li>\n<li>\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038 (\u1016\u103d\u1004\u1037\u103a\/\u1015\u102d\u1010\u103a \u1005\u1000\u103a\u101d\u1014\u103a\u1038\u1019\u103b\u102c\u1038)<\/li>\n<li>\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1006\u102c\u1038\u1000\u1005\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<li>Terminal \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<\/ul>\n<p><strong>\u1041\u1040-\u1041\u1045 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a (\u1021\u1013\u102d\u1000\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u104a \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u1000)<\/strong><\/p>\n<ul>\n<li>\u1016\u102f\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u104f \u1001\u102d\u102f\u1004\u103a\u1001\u1036\u1037\u1019\u103e\u102f\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038 (\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103c\u1004\u1037\u103a\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1013\u102c\u1010\u103a\u1019\u103e\u1014\u103a\u101b\u102d\u102f\u1000\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u104d)<\/li>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1000\u103d\u102c\u101f\u1019\u103e\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1001\u103c\u1004\u103a\u1038 (\u1019\u1031\u102c\u103a\u1012\u101a\u103a\u1021\u1001\u103b\u102d\u102f\u1037\u1010\u103d\u1004\u103a \u1010\u1005\u103a\u1005\u102d\u1010\u103a\u1010\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038 \u1016\u103c\u102f\u1010\u103a\u1010\u1015\u103a\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a)<\/li>\n<li>\u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/li>\n<\/ul>\n<p>\u1018\u102c\u1000\u102d\u102f \u101e\u1010\u102d\u1015\u103c\u102f\u1015\u102b\u104b <strong>\u1019<\/strong> \u1005\u102c\u101b\u1004\u103a\u1038\u1011\u1032\u1019\u103e\u102c\u1015\u102b\u1010\u102c\u1000-<\/p>\n<ul>\n<li>\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u101e\u1014\u1037\u103a\u101b\u103e\u1004\u103a\u1038\u101b\u1031\u1038\u1019\u101b\u103e\u102d\u1015\u102b (\u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a)<\/li>\n<li>Arc chute \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1019\u101b\u103e\u102d\u1015\u102b (\u1019\u101b\u103e\u102d\u1015\u102b)<\/li>\n<li>\u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u1015\u102b (\u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b)<\/li>\n<li>\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u1015\u102b (\u1042\u1040-\u1043\u1040 \u1014\u103e\u1005\u103a\u101e\u1000\u103a\u1010\u1019\u103a\u1038)<\/li>\n<\/ul>\n<p><strong>\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038 (\u1015\u102f\u1036\u1019\u103e\u1014\u103a)<\/strong><\/p>\n<ul>\n<li>\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 (\u1044 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a)- \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a $400-$700 (\u1000\u1014\u103a\u1011\u101b\u102d\u102f\u1000\u103a\u1010\u102c\u1021\u101c\u102f\u1015\u103a\u101e\u1019\u102c\u1038- \u1041.\u1045-\u1042 \u1014\u102c\u101b\u102e)<\/li>\n<li>\u1016\u102f\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a \u1021\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u101e\u1030 \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038 (\u1042\u1040-\u1042\u1045 \u1014\u103e\u1005\u103a\u1021\u1000\u103c\u102c\u1010\u103d\u1004\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u1000)- $6,000-$10,000<\/li>\n<\/ul>\n<p>\u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1041\u1045 \u1014\u103e\u1005\u103a \u1021\u1000\u1032\u1016\u103c\u1010\u103a\u1000\u102c\u101c\u101b\u103e\u102d\u101e\u1031\u102c VCB \u1021\u1010\u103d\u1000\u103a-<\/p>\n<ul>\n<li>\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038- (\u1041\u1045 \u1014\u103e\u1005\u103a \u00f7 \u1044 \u1014\u103e\u1005\u103a) \u00d7 \u1015\u103b\u1019\u103a\u1038\u1019\u103b\u103e $500 = <strong>$1,500<\/strong> (\u1043 \u1000\u103c\u102d\u1019\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li>\u1019\u1019\u103b\u103e\u1031\u102c\u103a\u101c\u1004\u1037\u103a\u101e\u1031\u102c \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038- \u1021\u101c\u103d\u1014\u103a\u101b\u103e\u102c\u1038\u1015\u102b\u1038\u101e\u100a\u103a\u104b $0 \u101f\u102f \u101a\u1030\u1006\u1015\u102b (VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1014\u103e\u102f\u1014\u103a\u1038 \u1041\u1040 \u1006 \u1014\u100a\u103a\u1038\u1015\u102b\u1038\u101e\u100a\u103a)<\/li>\n<li>\u1021\u1013\u102d\u1000 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f- \u1041\u1045 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u104b<\/li>\n<li><strong>\u1041\u1045 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f- $1,500<\/strong><\/li>\n<\/ul>\n<p>\u1000\u1014\u1026\u1038 \u101d\u101a\u103a\u101a\u1030\u1005\u101b\u102d\u1010\u103a ($25,000) \u1000\u102d\u102f \u1011\u100a\u1037\u103a\u1015\u1031\u102b\u1004\u103a\u1038\u1015\u102b\u104a \u101e\u1004\u103a\u104f <strong>\u1041\u1045 \u1014\u103e\u1005\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u1015\u102d\u102f\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1019\u103e\u102c ~$26,500 \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/strong>.<\/p>\n<h3>TCO \u1016\u103c\u1010\u103a\u1000\u103b\u1031\u102c\u103a\u1019\u103e\u1010\u103a<\/h3>\n<p>\u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1018\u1031\u1038\u1001\u103b\u1004\u103a\u1038\u1000\u1015\u103a\u104d \u1011\u102c\u1038\u1000\u103c\u100a\u1037\u103a\u1000\u103c\u1015\u102b\u1005\u102d\u102f\u1037-<\/p>\n<table border=\"\">\n<tbody>\n<tr>\n<td><strong>\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038<\/strong><\/td>\n<td><strong>ACB (\u1041\u1045 \u1014\u103e\u1005\u103a)<\/strong><\/td>\n<td><strong>VCB (\u1041\u1045 \u1014\u103e\u1005\u103a)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u1000\u1014\u1026\u1038 \u101d\u101a\u103a\u101a\u1030\u1019\u103e\u102f<\/td>\n<td>$15,000<\/td>\n<td>$25,000<\/td>\n<\/tr>\n<tr>\n<td>\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f<\/td>\n<td>$24,000<\/td>\n<td>$1,500<\/td>\n<\/tr>\n<tr>\n<td>Contact\/component \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038<\/td>\n<td>$9,000<\/td>\n<td>$0<\/td>\n<\/tr>\n<tr>\n<td>\u1019\u1019\u103b\u103e\u1031\u102c\u103a\u101c\u1004\u1037\u103a\u101e\u1031\u102c \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/td>\n<td>$2,000<\/td>\n<td>$0<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u1019\u103e\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a<\/strong><\/td>\n<td><strong>$50,000<\/strong><\/td>\n<td><strong>$26,500<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u1010\u1005\u103a\u1014\u103e\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a<\/strong><\/td>\n<td><strong>$3,333\/\u1010\u1005\u103a\u1014\u103e\u1005\u103a<\/strong><\/td>\n<td><strong>$1,767\/\u1010\u1005\u103a\u1014\u103e\u1005\u103a<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>VCB \u101e\u100a\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u101e\u1000\u103a\u101e\u102c\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1004\u1037\u103a \u101e\u1030\u1037\u1021\u101c\u102d\u102f\u101c\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1015\u1031\u1038\u1006\u1015\u103a\u101e\u100a\u103a\u104b \u1012\u102b\u1015\u1031\u1019\u101a\u1037\u103a \u1012\u102e\u1019\u103e\u102c \u1021\u1013\u102d\u1000\u1021\u1001\u103b\u1000\u103a\u1000- <strong>\u1016\u103c\u1010\u103a\u1000\u103b\u1031\u102c\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1043 \u1014\u103e\u1005\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1010\u103d\u1004\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101e\u100a\u103a\u104b<\/strong>.<\/p>\n<ul>\n<li><strong>\u1014\u103e\u1005\u103a \u1040-<\/strong> ACB = $15K, VCB = $25K (ACB \u101e\u100a\u103a $10K \u1016\u103c\u1004\u1037\u103a \u101b\u103e\u1031\u1037\u101b\u1031\u102c\u1000\u103a\u1014\u1031\u101e\u100a\u103a)<\/li>\n<li><strong>\u1014\u103e\u1005\u103a \u1041.\u1045-<\/strong> \u1015\u1011\u1019 ACB \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 \u1043 \u1000\u103c\u102d\u1019\u103a = $2,400; VCB = $0 (ACB \u101e\u100a\u103a $7,600 \u1016\u103c\u1004\u1037\u103a \u101b\u103e\u1031\u1037\u101b\u1031\u102c\u1000\u103a\u1014\u1031\u101e\u100a\u103a)<\/li>\n<li><strong>\u1014\u103e\u1005\u103a \u1043-<\/strong> ACB \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 \u1046 \u1000\u103c\u102d\u1019\u103a = $4,800; VCB = $0 (ACB \u101e\u100a\u103a $5,200 \u1016\u103c\u1004\u1037\u103a \u101b\u103e\u1031\u1037\u101b\u1031\u102c\u1000\u103a\u1014\u1031\u101e\u100a\u103a)<\/li>\n<li><strong>\u1014\u103e\u1005\u103a \u1044-<\/strong> \u1015\u1011\u1019 ACB contact \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038 + \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 \u1048 \u1000\u103c\u102d\u1019\u103a = $9,400; VCB \u1015\u1011\u1019 \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038 = $500 (ACB \u101e\u100a\u103a $900 \u1016\u103c\u1004\u1037\u103a \u101b\u103e\u1031\u1037\u101b\u1031\u102c\u1000\u103a\u1014\u1031\u101e\u100a\u103a)<\/li>\n<li><strong>\u1014\u103e\u1005\u103a \u1045-<\/strong> ACB \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f = $12,000; VCB = $500 (<strong>VCB \u101e\u100a\u103a \u1004\u103d\u1031\u1000\u103c\u1031\u1038\u1000\u102d\u102f \u1005\u1010\u1004\u103a \u1001\u103b\u103d\u1031\u1010\u102c\u101e\u100a\u103a\u104b<\/strong>)<\/li>\n<li><strong>\u1014\u103e\u1005\u103a \u1041\u1045-<\/strong> ACB \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 = $50K; VCB \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 = $26.5K (<strong>VCB \u101e\u100a\u103a $23,500 \u1000\u102d\u102f \u1001\u103b\u103d\u1031\u1010\u102c\u101e\u100a\u103a\u104b<\/strong>)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20227\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/5-Year-Total-Cost-of-Ownership-TCO-analysis.webp\" alt=\"5-Year Total Cost of Ownership (TCO) analysis\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/5-Year-Total-Cost-of-Ownership-TCO-analysis.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/5-Year-Total-Cost-of-Ownership-TCO-analysis-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/5-Year-Total-Cost-of-Ownership-TCO-analysis-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/5-Year-Total-Cost-of-Ownership-TCO-analysis-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/5-Year-Total-Cost-of-Ownership-TCO-analysis-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><em>\u1015\u102f\u1036 \u1044- \u1041\u1045 \u1014\u103e\u1005\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u1015\u102d\u102f\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a (TCO) \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038\u104b \u1000\u1014\u1026\u1038 \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038\u104a VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038 \u101e\u102d\u101e\u102d\u101e\u102c\u101e\u102c \u1014\u100a\u103a\u1038\u1015\u102b\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1043 \u1014\u103e\u1005\u103a\u1019\u103c\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a ACB \u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1019\u102d\u102f \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u1021\u101b \u1010\u103d\u1000\u103a\u1001\u103c\u1031\u1000\u102d\u102f\u1000\u103a\u101c\u102c\u1015\u103c\u102e\u1038 \u1041\u1045 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 $23,500 \u1000\u102d\u102f \u1001\u103b\u103d\u1031\u1010\u102c\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/em><\/p>\n<p>\u101e\u1004\u103a\u101e\u100a\u103a switchgear \u1000\u102d\u102f \u1014\u103e\u1005\u103a \u1042\u1040 (\u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a) \u1011\u102c\u1038\u101b\u103e\u102d\u101b\u1014\u103a \u1005\u102e\u1005\u1009\u103a\u1011\u102c\u1038\u1015\u102b\u1000\u104a \u1001\u103b\u103d\u1031\u1010\u102c\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u1000\u103d\u102c\u101f\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1000\u103b\u101a\u103a\u1015\u103c\u1014\u1037\u103a\u101c\u102c\u1015\u103c\u102e\u1038 <strong>\u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a $35,000+<\/strong>. \u104b breaker \u1041\u1040 \u1001\u102f\u1015\u102b\u101e\u1031\u102c \u1013\u102c\u1010\u103a\u1021\u102c\u1038\u1001\u103d\u1032\u101b\u102f\u1036\u1021\u1010\u103d\u1000\u103a\u104a \u104e\u1004\u103a\u1038\u101e\u100a\u103a <strong>\u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a \u1001\u103b\u103d\u1031\u1010\u102c\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f $350,000<\/strong>.<\/p>\n<h3>\u1004\u103d\u1031\u1010\u1031\u102c\u1004\u103a\u1038\u1001\u1036\u101c\u103d\u103e\u102c\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c \u101d\u103e\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1019\u103b\u102c\u1038<\/h3>\n<p>\u1021\u1011\u1000\u103a\u1015\u102b TCO \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f\u101e\u102c \u1016\u1019\u103a\u1038\u101a\u1030\u101e\u100a\u103a\u104b \u1019\u1019\u1031\u1037\u1015\u102b\u1014\u103e\u1004\u1037\u103a-<\/p>\n<p><strong>\u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f\u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a-<\/strong><\/p>\n<ul>\n<li>\u1005\u1005\u103a\u1006\u1031\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038\u1010\u103d\u1004\u103a ACB \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1019\u1019\u103b\u103e\u1031\u102c\u103a\u101c\u1004\u1037\u103a\u101e\u1031\u102c \u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1005\u1031\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>VCB \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101b\u103e\u102c\u1038\u1015\u102b\u1038\u101e\u100a\u103a (MTBF \u101e\u100a\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1005\u103d\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u1000 \u1014\u103e\u1005\u103a \u1043\u1040 \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a)<\/li>\n<\/ul>\n<p><strong>\u101c\u102f\u1015\u103a\u101e\u102c\u1038\u101b\u101b\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li>\u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u100a\u103a VCB \u1019\u103b\u102c\u1038\u101e\u102d\u102f\u1037 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u101c\u102c\u101e\u100a\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1019\u103b\u103e ACB \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u100a\u103a\u1021\u1001\u103b\u1004\u103a\u1038\u1015\u103c\u100a\u1037\u103a\u1019\u102e\u101e\u1031\u102c \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u101b\u103e\u1004\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u103e\u102c\u1016\u103d\u1031\u101b\u1014\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1001\u1000\u103a\u1001\u1032\u101c\u102c\u101e\u100a\u103a\u104b<\/li>\n<li>\u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1000\u102c\u101c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1019\u103e\u102f \u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1001\u103b\u102d\u1014\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1002\u101b\u102f\u1010\u1005\u102d\u102f\u1000\u103a \u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1006\u103d\u1032\u1001\u103c\u1004\u103a\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>\u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101b\u1031\u1038-<\/strong><\/p>\n<ul>\n<li>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1010\u103d\u1004\u103a\u1038 ACB arc flash \u1016\u103c\u1005\u103a\u1015\u103d\u102c\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a VCB \u1016\u103c\u1005\u103a\u1015\u103d\u102c\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1021\u1016\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a (\u1015\u103d\u1004\u1037\u103a\u101c\u1004\u103a\u1038\u101e\u1031\u102c contacts \u1014\u103e\u1004\u1037\u103a sealed interrupter \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b)<\/li>\n<li>Arc flash PPE \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a ACB \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1010\u1004\u103a\u1038\u1000\u103b\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c\u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ul>\n<li>\u1016\u102f\u1014\u103a\u1011\u1030\u101e\u1031\u102c\u104a \u1005\u102d\u102f\u1005\u103d\u1010\u103a\u101e\u1031\u102c \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u101b\u103e\u102d ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b <em>\u1015\u102d\u102f\u104d<\/em> \u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f (\u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1021\u1005\u102c\u1038 \u101e\u102f\u1036\u1038\u101c\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a)<\/li>\n<li>VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1019\u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1015\u102b\u2014sealed interrupter \u101e\u100a\u103a \u1015\u103c\u1004\u103a\u1015\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1002\u101b\u102f\u1019\u1005\u102d\u102f\u1000\u103a\u1015\u102b\u104b<\/li>\n<\/ul>\n<p><strong>Pro-Tip #5 (\u1021\u1000\u103c\u102e\u1038\u1021\u1000\u1032)-<\/strong> <em>\u1000\u1014\u1026\u1038 \u101b\u1004\u103a\u1038\u1014\u103e\u102e\u1038\u1019\u103c\u103e\u102f\u1015\u103a\u1014\u103e\u1036\u1019\u103e\u102f \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u102c\u1019\u1000\u1018\u1032 \u1019\u103b\u103e\u1031\u102c\u103a\u1019\u103e\u1014\u103a\u1038\u1011\u102c\u1038\u101e\u1031\u102c switchgear \u101e\u1000\u103a\u1010\u1019\u103a\u1038 (\u1041\u1045-\u1042\u1045 \u1014\u103e\u1005\u103a) \u1021\u1010\u103d\u1004\u103a\u1038 \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u1015\u102d\u102f\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1000\u102d\u102f \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1015\u102b\u104b \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a TCO \u1010\u103d\u1004\u103a \u1021\u1019\u103c\u1032\u101c\u102d\u102f\u101c\u102d\u102f \u1021\u1014\u102d\u102f\u1004\u103a\u101b\u101b\u103e\u102d\u101e\u100a\u103a\u104b \u101e\u1004\u103a\u101e\u100a\u103a ACB \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101b\u1019\u100a\u1037\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a \u1010\u1005\u103a\u1014\u103e\u1005\u103a\u101c\u103b\u103e\u1004\u103a breaker \u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a $2,000-$3,000 \u1000\u102d\u102f \u1018\u1010\u103a\u1002\u103b\u1000\u103a\u1011\u102c\u1038\u1015\u102b\u2014\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1000\u102d\u102f \u101c\u103b\u103e\u1031\u102c\u1019\u101e\u103d\u102c\u1038\u1015\u102b\u1005\u1031\u1014\u103e\u1004\u1037\u103a\u104b \u1000\u103b\u1031\u102c\u103a\u101e\u103d\u102c\u1038\u101e\u1031\u102c \u1005\u1005\u103a\u1006\u1031\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u101e\u1031\u102c \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1016\u103c\u1005\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b.<\/em><\/p>\n<hr \/>\n<h2>\u1019\u1000\u103c\u102c\u1001\u100f \u1019\u1031\u1038\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u1031\u102c \u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103b\u102c\u1038- ACB \u1014\u103e\u1004\u1037\u103a VCB<\/h2>\n<p><strong>\u1019\u1031\u1038- \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u101e\u100a\u103a ACB \u1000\u102d\u102f 1,000V \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a derate \u101c\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1015\u103c\u1004\u103a\u1015 arc suppression \u1011\u100a\u1037\u103a\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1004\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u1019\u101b\u1015\u102b\u104b ACBs \u1021\u1010\u103d\u1000\u103a 1,000V \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a derating \u1016\u103c\u1004\u1037\u103a \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c thermal \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a electrical stress \u1015\u103c\u103f\u1014\u102c\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u2014\u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1001\u103c\u1031\u1001\u1036 arc \u101b\u1030\u1015\u1017\u1031\u1012 \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b 1kV \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a\u104a \u101c\u1031\u1011\u102f\u101c\u1031\u101e\u100a\u103a breaker \u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1015\u1004\u103a \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1005\u1031\u1000\u102c\u1019\u1030 \u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101e\u1031\u102c \u1021\u1001\u103b\u102d\u1014\u103a\u1018\u1031\u102c\u1004\u103a\u1021\u1010\u103d\u1004\u103a\u1038 arc \u1000\u102d\u102f \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b IEC 60947-2 \u101e\u100a\u103a ACBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u22641,000V AC \u101e\u102d\u102f\u1037 \u101b\u103e\u1004\u103a\u1038\u101b\u103e\u1004\u103a\u1038\u101c\u1004\u103a\u1038\u101c\u1004\u103a\u1038 \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u1011\u102d\u102f\u1014\u101a\u103a\u1015\u101a\u103a\u1015\u103c\u1004\u103a\u1015\u1010\u103d\u1004\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u102f\u1038\u1016\u1031\u102c\u1000\u103a\u1015\u103c\u102e\u1038 arc flash \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u101e\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u101e\u100a\u103a 1kV \u1021\u1011\u1000\u103a\u1016\u103c\u1005\u103a\u1015\u102b\u1000\u104a \u101e\u1004\u103a\u101e\u100a\u103a \u1010\u101b\u102c\u1038\u101d\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u1005\u103d\u102c \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 breaker (IEC 62271-100 \u1021\u101b VCB \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a SF6 breaker) \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101b\u1015\u102b\u1019\u100a\u103a\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1010\u1005\u103a\u1001\u102f\u1001\u102f \u1019\u103e\u102c\u1038\u101a\u103d\u1004\u103a\u1038\u101e\u103d\u102c\u1038\u1015\u102b\u1000 VCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f ACB \u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u101b\u1014\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u101f\u102f\u1010\u103a\u1000\u1032\u1037\u104a \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u1021\u101c\u103d\u1014\u103a\u1014\u100a\u103a\u1038\u1015\u102b\u1038\u101e\u100a\u103a\u104b VCB vacuum interrupter \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1015\u102b\u1000 (\u101b\u103e\u102c\u1038\u1015\u102b\u1038\u101e\u100a\u103a)\u104a \u104e\u1004\u103a\u1038\u101e\u100a\u103a $6,000-$10,000 \u1016\u103c\u1004\u1037\u103a sealed unit \u1010\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1005\u1000\u103a\u101b\u102f\u1036\u1019\u103e \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b ACB contacts \u1014\u103e\u1004\u1037\u103a arc chutes \u1019\u103b\u102c\u1038\u1000\u102d\u102f $2,500-$4,000 \u1016\u103c\u1004\u1037\u103a field \u1010\u103d\u1004\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 VCB \u104f \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1043-\u1044 \u1000\u103c\u102d\u1019\u103a \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1019\u100a\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101e\u1004\u103a\u1039\u1001\u103b\u102c\u101e\u100a\u103a VCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1014\u103e\u1005\u103a\u101e\u1000\u103a\u1006\u1032\u1016\u103c\u1005\u103a\u101e\u100a\u103a- \u1042\u1045 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 VCB interrupter \u1010\u1005\u103a\u1001\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1041\u1045 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 ACB contact \u101e\u102f\u1036\u1038\u1001\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u104a \u1011\u102d\u102f\u1037\u1021\u1015\u103c\u1004\u103a \u1006\u1000\u103a\u101c\u1000\u103a\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1014\u1031\u101e\u1031\u102c <strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a<\/strong> \u1001\u103c\u1031\u102c\u1000\u103a\u101c\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1019\u100a\u103a\u101e\u100a\u1037\u103a breaker \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u101e\u100a\u103a \u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1015\u102d\u102f\u1000\u1031\u102c\u1004\u103a\u1038\u101e\u1014\u100a\u103a\u1038 (capacitor banks, motor starting)?<\/strong><\/p>\n<p>\u1016\u103c\u1031- VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101c\u103d\u1014\u103a\u1021\u1000\u103b\u103d\u1036 \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u101e\u100a\u103a\u104b Vacuum circuit breaker \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1013\u102d\u1000 \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u1019\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1019\u102e \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a 30,000 \u1019\u103e 100,000+ \u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b ACBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a 10,000 \u1019\u103e 15,000 \u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b \u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1015\u102b\u101d\u1004\u103a\u101e\u100a\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u2014capacitor bank switching, batch processes \u1010\u103d\u1004\u103a motor starting\/stopping \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a load transfer schemes \u1000\u1032\u1037\u101e\u102d\u102f\u1037\u2014VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a \u1021\u101b\u1031\u1021\u1010\u103d\u1000\u103a\u1010\u103d\u1004\u103a ACB \u1019\u103b\u102c\u1038\u1011\u1000\u103a 3:1 \u1019\u103e 10:1 \u1021\u1011\u102d \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1015\u102d\u102f\u101b\u103e\u100a\u103a\u1019\u100a\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1011\u102d\u102f\u1037\u1021\u1015\u103c\u1004\u103a\u104a VCB \u1019\u103b\u102c\u1038\u104f \u101c\u103b\u1004\u103a\u1019\u103c\u1014\u103a\u101e\u1031\u102c arc \u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038 (\u1010\u1005\u103a\u1005\u1000\u103a\u101d\u1014\u103a\u1038) \u101e\u100a\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1019\u103e\u102f\u1010\u1005\u103a\u1001\u102f\u1005\u102e\u1021\u1010\u103d\u1004\u103a\u1038 downstream equipment \u1015\u1031\u102b\u103a\u101b\u103e\u102d \u1016\u102d\u1021\u102c\u1038\u1000\u102d\u102f \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- VCB \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1000\u1014\u1026\u1038 \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u104d ACB \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u1000 \u1021\u102c\u1038\u1014\u100a\u103a\u1038\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038 \u101b\u103e\u102d\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u1021\u101e\u1031\u1038\u1021\u1016\u103d\u1032 \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u101b\u1014\u103a \u101e\u102f\u1036\u1038\u1001\u102f\u101b\u103e\u102d\u101e\u100a\u103a- (\u1041) <strong>Overvoltage \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a<\/strong> capacitive \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a inductive load \u1019\u103b\u102c\u1038\u1000\u102d\u102f\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u1031\u102c\u1021\u1001\u102b VCB \u1019\u103b\u102c\u1038\u104f \u101c\u103b\u103e\u1004\u103a\u1019\u103c\u1014\u103a\u101e\u1031\u102c arc \u1004\u103c\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u101a\u102c\u101a\u102e overvoltage \u1019\u103b\u102c\u1038\u1000\u102d\u102f\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u103c\u102e\u1038 \u1011\u102d\u101c\u103d\u101a\u103a\u101b\u103e\u101c\u103d\u101a\u103a load \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a surge arrester \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a RC snubber \u1019\u103b\u102c\u1038\u101c\u102d\u102f\u1021\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u100a\u103a\u104b (2) <strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u101b\u1014\u103a\u1001\u1000\u103a\u1001\u1032\u1001\u103c\u1004\u103a\u1038<\/strong>vacuum interrupter \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1015\u102b\u1000 \u104e\u1004\u103a\u1038\u1000\u102d\u102f field \u1010\u103d\u1004\u103a\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u104d\u1019\u101b\u1015\u102b\u104b \u101a\u1030\u1014\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1019\u100a\u103a\u104b (3) <strong>\u1000\u103c\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1010\u102f\u1014\u103a\u1001\u102b\u1019\u103e\u102f<\/strong>VCB \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103b\u102d\u102f\u1037\u101e\u100a\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103e \u1000\u103c\u102d\u1019\u103a\u1014\u103e\u102f\u1014\u103a\u1038\u1014\u102d\u1019\u1037\u103a \u1010\u102f\u1014\u103a\u1001\u102b\u1019\u103e\u102f\u1000\u102d\u102f \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u104e\u1004\u103a\u1038\u101e\u100a\u103a ACB arc blast \u1011\u1000\u103a \u1021\u1006\u1015\u1031\u102b\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1005\u103d\u102c \u1010\u102d\u1010\u103a\u1006\u102d\u1010\u103a\u1015\u102b\u101e\u100a\u103a\u104b 99% application \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1024\u1021\u102c\u1038\u1014\u100a\u103a\u1038\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101c\u103b\u103e\u1004\u103a \u1021\u101b\u1031\u1038\u1019\u1015\u102b\u1015\u102b\u104b (\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1000\u102d\u102f\u1000\u103c\u100a\u1037\u103a\u1015\u102b) <strong>\u1010\u1005\u103a\u101e\u1000\u103a\u1010\u102c\u1021\u1010\u103d\u1000\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u104f \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a<\/strong> \u1021\u1015\u102d\u102f\u1004\u103a\u1038)\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u101e\u100a\u103a VCB \u1000\u102d\u102f \u101c\u1000\u103a\u101b\u103e\u102d ACB switchgear panel \u1019\u103b\u102c\u1038\u1011\u1032\u101e\u102d\u102f\u1037 \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1010\u1015\u103a\u1006\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u1010\u1005\u103a\u1001\u102b\u1010\u1005\u103a\u101b\u1036\u1010\u103d\u1004\u103a \u101b\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1021\u1019\u103c\u1032\u1010\u1019\u103a\u1038\u1010\u1031\u102c\u1037 \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a ACB \u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1000\u103b\u1005\u103a\u101c\u1005\u103a\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101b\u102f\u1015\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c\u1014\u1031\u101b\u102c\u101e\u100a\u103a \u1015\u103c\u103f\u1014\u102c\u1016\u103c\u1005\u103a\u1001\u1032\u1015\u102b\u101e\u100a\u103a\u104b \u1005\u102d\u1014\u103a\u1001\u1031\u102b\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1019\u103e\u102c- (1) <strong>\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1021\u1010\u102d\u102f\u1004\u103a\u1038\u1021\u1010\u102c\u1019\u103b\u102c\u1038<\/strong>ACB \u1014\u103e\u1004\u1037\u103a VCB \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1021\u1015\u1031\u102b\u1000\u103a\u1015\u102f\u1036\u1005\u1036\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1000\u103d\u1032\u1015\u103c\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b adapter plate \u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u100a\u103a\u104b (2) <strong><a href=\"https:\/\/test.viox.com\/my\/busbar\/\">Busbar<\/a> \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036<\/strong>VCB terminal \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1019\u103d\u1019\u103a\u1038\u1019\u1036\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u1018\u1032 \u101c\u1000\u103a\u101b\u103e\u102d ACB busbar \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u104b (3) <strong>\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038<\/strong>VCB \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1019\u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1015\u102b\u101d\u102b \u101c\u102d\u102f\u1021\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a (\u1025\u1015\u1019\u102c- 110V DC \u1014\u103e\u1004\u1037\u103a 220V AC)\u104b (4) <strong>\u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038 \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f<\/strong>breaker \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a short-circuit \u101b\u103e\u1004\u103a\u1038\u101c\u1004\u103a\u1038\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u1009\u103a\u1038\u1000\u103d\u1031\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u1015\u103c\u102f\u1019\u102e switchgear \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u101b\u100a\u103a\u1021\u1001\u103b\u1004\u103a\u1038\u1015\u103c\u100a\u1037\u103a\u1019\u102e\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1014\u103e\u1004\u1037\u103a \u1021\u1019\u103c\u1032\u1010\u102d\u102f\u1004\u103a\u1015\u1004\u103a\u1015\u102b\u104b \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1021\u101e\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1010\u103d\u1000\u103a VCB \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1014\u102d\u1019\u1037\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1010\u103d\u1000\u103a ACBs (\u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a MCCBs) \u1000\u102d\u102f \u1021\u1005\u1000\u1010\u100a\u103a\u1038\u1000 \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u1004\u1037\u103a\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/mccb\/\">MCCBs<\/a>) \u1021\u1005\u1000\u1010\u100a\u103a\u1038\u1000\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 (11kV, 33kV) \u1021\u1010\u103d\u1000\u103a ACBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1019\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1014\u100a\u103a\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u101e\u1030\u1010\u102d\u102f\u1037 \u1000\u103c\u102d\u102f\u1038\u1005\u102c\u1038\u1001\u1032\u1037\u1010\u101a\u103a\u104b \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1042\u1040 \u101b\u102c\u1005\u102f\u1021\u101c\u101a\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1010\u103d\u1004\u103a \u101b\u103e\u102d\u1001\u1032\u1037\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1027\u101b\u102c\u1019\u1000\u103c\u102e\u1038\u1019\u102c\u1038\u1015\u103c\u102e\u1038 \u1021\u1001\u1014\u103a\u1038\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c breaker \u1019\u103b\u102c\u1038\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u1019\u102e\u1010\u102c\u1021\u1010\u1031\u102c\u103a\u1000\u103c\u102c\u101b\u103e\u100a\u103a\u101e\u1031\u102c arc chute \u1019\u103b\u102c\u1038\u1015\u102b\u101b\u103e\u102d\u101e\u100a\u103a\u104b \u101c\u1031\u104f dielectric \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a \u1021\u1010\u1031\u102c\u103a\u101c\u1031\u1038\u1014\u100a\u103a\u1038\u1001\u103c\u1004\u103a\u1038 (~3 kV\/mm) \u1006\u102d\u102f\u101e\u100a\u103a\u1019\u103e\u102c 33kV breaker \u1010\u1005\u103a\u1001\u102f\u101e\u100a\u103a \u1019\u102e\u101c\u102e\u1019\u102e\u1010\u102c\u1019\u101f\u102f\u1010\u103a\u1018\u1032 \u1019\u102e\u1010\u102c\u1016\u103c\u1004\u1037\u103a \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u101e\u1031\u102c contact gap \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a arc chute \u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u101f\u102f \u1006\u102d\u102f\u101c\u102d\u102f\u1015\u102b\u101e\u100a\u103a\u104b \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u104a \u1021\u101c\u1031\u1038\u1001\u103b\u102d\u1014\u103a\u104a \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u101d\u1014\u103a\u1011\u102f\u1015\u103a\u101d\u1014\u103a\u1015\u102d\u102f\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u102e\u1038\u1018\u1031\u1038\u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1019\u1000\u103b\u1005\u1031\u1015\u102b\u104b 1960 \u1001\u102f\u1014\u103e\u1005\u103a\u1019\u103b\u102c\u1038-1970 \u1001\u102f\u1014\u103e\u1005\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a vacuum interrupter \u1014\u100a\u103a\u1038\u1015\u100a\u102c \u101b\u1004\u1037\u103a\u1000\u103b\u1000\u103a\u101c\u102c\u101e\u100a\u103a\u1014\u103e\u1004\u1037\u103a\u1010\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u1031\u1010\u103a\u1019\u1019\u102e\u1010\u1031\u102c\u1037\u1015\u102b\u104b \u101a\u1014\u1031\u1037\u1010\u103d\u1004\u103a vacuum \u1014\u103e\u1004\u1037\u103a SF6 breaker \u1019\u103b\u102c\u1038\u101e\u100a\u103a 1kV \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u101b\u1030\u1015\u1017\u1031\u1012\u1014\u103e\u1004\u1037\u103a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u1014\u103e\u1005\u103a\u101b\u1015\u103a\u1005\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1010\u1036\u1006\u102d\u1015\u103a\u1001\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c interrupter \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1014\u103e\u1005\u103a\u101e\u1000\u103a\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1005\u103b\u1031\u1038\u1000\u103d\u1000\u103a\u1000\u102d\u102f \u101c\u103d\u103e\u1019\u103a\u1038\u1019\u102d\u102f\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b \u1011\u102d\u102f <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038<\/strong> \u101e\u100a\u103a \u1011\u102f\u1010\u103a\u1000\u102f\u1014\u103a\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u2014\u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1019\u103e\u1014\u103a\u1010\u101b\u102c\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<hr \/>\n<h2>\u1014\u102d\u1002\u102f\u1036\u1038- \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u102d\u102f \u1026\u1038\u1005\u102c\u1038\u1015\u1031\u1038\u1015\u103c\u102e\u1038 \u1000\u103b\u1014\u103a\u1021\u101b\u102c\u1021\u102c\u1038\u101c\u102f\u1036\u1038 \u1014\u1031\u102c\u1000\u103a\u1019\u103e \u101c\u102d\u102f\u1000\u103a\u1015\u102b<\/h2>\n<p>\u1021\u1016\u103d\u1004\u1037\u103a\u1019\u103e \u1012\u1031\u1010\u102c\u1005\u102c\u101b\u103d\u1000\u103a\u1014\u103e\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u1019\u103e\u1010\u103a\u101e\u102c\u1038\u1011\u102c\u1038\u1015\u102b\u101e\u101c\u102c\u1038\u104b \u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u101e\u100a\u103a 690V \u1021\u1011\u102d \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u100a\u103a\u104b \u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1000\u102d\u102f \u1010\u1031\u102c\u1004\u103a\u1038\u1006\u102d\u102f\u1001\u1032\u1037\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u101a\u1001\u102f \u101e\u1004\u103a\u101e\u102d\u1015\u103c\u102e- <strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u1014\u1036\u1015\u102b\u1010\u103a\u1010\u1005\u103a\u1001\u102f\u1019\u103b\u103e\u101e\u102c\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u2014\u104e\u1004\u103a\u1038\u101e\u100a\u103a breaker \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038 \u1001\u103c\u102c\u1038\u1014\u102c\u1038\u101e\u1031\u102c\u1019\u103b\u1009\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/strong><\/p>\n<p>\u1024\u1010\u103d\u1004\u103a \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u101e\u102f\u1036\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u1015\u102b \u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u1030\u1018\u1031\u102c\u1004\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/p>\n<p><strong>1. \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a breaker \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u101e\u100a\u103a (\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038)<\/strong><\/p>\n<ul>\n<li>System voltage \u22641,000V AC \u2192 Air Circuit Breaker (ACB) \u1000\u102d\u102f IEC 60947-2:2024 \u1016\u103c\u1004\u1037\u103a \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>System voltage &gt;1,000V AC \u2192 Vacuum Circuit Breaker (VCB) \u1000\u102d\u102f IEC 62271-100:2021+A1:2024 \u1016\u103c\u1004\u1037\u103a \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>\u1024\u101e\u100a\u103a\u1019\u103e\u102c \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u104d\u1019\u101b\u1015\u102b\u104b \u101b\u1030\u1015\u1017\u1031\u1012\u101e\u100a\u103a \u1014\u101a\u103a\u1014\u102d\u1019\u102d\u1010\u103a\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u100a\u103a\u104b \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1000 \u104e\u1004\u103a\u1038\u1000\u102d\u102f \u1015\u102f\u1036\u1005\u1036\u1001\u103b\u101e\u100a\u103a\u104b.<\/li>\n<\/ul>\n<p><strong>2. \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1000\u103d\u1032\u1015\u103c\u102c\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1015\u102f\u1036\u1005\u1036\u1001\u103b\u101e\u100a\u103a (\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u1000\u103d\u1032\u1015\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038)<\/strong><\/p>\n<ul>\n<li>IEC \u101e\u100a\u103a \u1005\u103b\u1031\u1038\u1000\u103d\u1000\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103d\u1032\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1014\u103e\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u1019\u1016\u1014\u103a\u1010\u102e\u1038\u1001\u1032\u1037\u1015\u102b\u2014\u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u101c\u1031\u1021\u1001\u103c\u1031\u1001\u1036 arc \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a 1kV \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a\u1000\u102d\u102f \u1005\u1014\u1005\u103a\u1010\u1000\u103b\u1016\u1031\u102c\u103a\u1015\u103c\u1001\u1032\u1037\u101e\u100a\u103a\u104b<\/li>\n<li>\u101e\u1004\u103a\u104f system \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u1019\u100a\u103a\u101e\u100a\u1037\u103a\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u100a\u103a\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1015\u103c\u1015\u103c\u102e\u1038 \u1019\u100a\u103a\u101e\u100a\u1037\u103a breaker \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101b\u1019\u100a\u103a\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1015\u103c\u101e\u100a\u103a\u104b<\/li>\n<li>breaker \u104f IEC \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f\u1021\u1019\u103e\u1010\u103a\u1021\u101e\u102c\u1038\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b- 60947-2 = \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a\u104a 62271-100 = \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a<\/li>\n<\/ul>\n<p><strong>3. \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u1000\u102d\u102f \u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u101e\u100a\u103a (\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a)<\/strong><\/p>\n<ul>\n<li>ACBs \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101b\u103e\u1031\u1037\u1010\u103d\u1004\u103a \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u1000\u103a\u101e\u102c\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1014\u103e\u1005\u103a\u101d\u1000\u103a\u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a contact \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1010\u1005\u103a\u1014\u103e\u1005\u103a\u101c\u103b\u103e\u1004\u103a $2,000-$3,000 \u1000\u102f\u1014\u103a\u1000\u103b\u101e\u100a\u103a\u104b<\/li>\n<li>VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1000\u1014\u1026\u1038\u1010\u103d\u1004\u103a \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1043-\u1045 \u1014\u103e\u1005\u103a\u1010\u1005\u103a\u1000\u103c\u102d\u1019\u103a\u101e\u102c \u1005\u1005\u103a\u1006\u1031\u1038\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u103c\u102e\u1038 contact \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1019\u103e\u102c \u1042\u1040-\u1043\u1040 \u1014\u103e\u1005\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>TCO crossover \u101e\u100a\u103a \u1043 \u1014\u103e\u1005\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1010\u103d\u1004\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101e\u100a\u103a\u104b \u1041\u1045 \u1014\u103e\u1005\u103a\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c\u1021\u1001\u102b VCB \u1019\u103b\u102c\u1038\u101e\u100a\u103a breaker \u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a $20,000-$25,000 \u101e\u1000\u103a\u101e\u102c\u1005\u1031\u101e\u100a\u103a\u104b<\/li>\n<li>\u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038 application \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a (VCB \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1015\u1004\u103a\u1016\u103c\u1005\u103a\u1005\u1031 \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101b\u1019\u100a\u103a) \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1021\u1015\u102d\u102f\u1006\u102f\u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1014\u102d\u1019\u1037\u103a application \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a (ACBs \u1019\u103b\u102c\u1038 \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c\u1014\u1031\u101b\u102c) \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1018\u1010\u103a\u1002\u103b\u1000\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 <strong>\u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1021\u1001\u103d\u1014\u103a<\/strong> \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038\u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1000\u102d\u102f \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1015\u102b\u104b<\/li>\n<\/ul>\n<p>\u1012\u1031\u1010\u102c\u1005\u102c\u101b\u103d\u1000\u103a\u101e\u100a\u103a \u1011\u1015\u103a\u1014\u1031\u101e\u1031\u102c \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u101e\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u1005\u103b\u1031\u1038\u1000\u103d\u1000\u103a\u101b\u103e\u102c\u1016\u103d\u1031\u101b\u1031\u1038 \u1018\u101b\u102d\u102f\u101b\u103e\u102c\u101e\u100a\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1021\u1015\u103c\u1014\u103a\u1021\u101c\u103e\u1014\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u101f\u102f \u1006\u102d\u102f\u101c\u102d\u102f\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u101b\u1030\u1015\u1017\u1031\u1012\u101e\u100a\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u1011\u102c\u1038\u101e\u1000\u1032\u1037\u101e\u102d\u102f\u1037 \u101e\u1004\u103a\u101c\u100a\u103a\u1038 \u1019\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u101e\u1004\u1037\u103a\u1015\u102b\u104b.<\/p>\n<p><strong>\u101e\u1004\u103a\u104f system \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1015\u1031\u102b\u103a\u1019\u1030\u1010\u100a\u103a\u104d \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1015\u102b\u104b.<\/strong> \u1000\u103b\u1014\u103a\u1021\u101b\u102c\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u2014\u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u104a \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u104a \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f\u1000\u103c\u102c\u1038\u1000\u102c\u101c\u1019\u103b\u102c\u1038\u104a \u1001\u103c\u1031\u101b\u102c\u1001\u1036\u2014\u101e\u1004\u103a\u101e\u100a\u103a \u1011\u102d\u102f\u1015\u1011\u1019\u1006\u102f\u1036\u1038\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u1005\u103d\u102c\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1015\u103c\u102e\u1038\u101e\u100a\u103a\u1014\u103e\u1004\u1037\u103a \u1014\u1031\u101b\u102c\u1010\u1000\u103b\u1016\u103c\u1005\u103a\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b.<\/p>\n<hr \/>\n<h3>\u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c Circuit Breaker \u1000\u102d\u102f \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u101b\u102c\u1010\u103d\u1004\u103a \u1021\u1000\u1030\u1021\u100a\u102e\u101c\u102d\u102f\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/h3>\n<p>VIOX \u104f application \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1021\u1016\u103d\u1032\u1037\u101e\u100a\u103a \u1000\u1019\u1039\u1018\u102c\u1010\u1005\u103a\u101d\u103e\u1019\u103a\u1038\u101b\u103e\u102d \u1005\u1000\u103a\u1019\u103e\u102f\u104a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a application \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a ACBs \u1014\u103e\u1004\u1037\u103a VCBs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101b\u102c\u1010\u103d\u1004\u103a \u1006\u101a\u103a\u1005\u102f\u1014\u103e\u1005\u103a\u1019\u103b\u102c\u1038\u1005\u103d\u102c \u1021\u1010\u103d\u1031\u1037\u1021\u1000\u103c\u102f\u1036\u101b\u103e\u102d\u101e\u100a\u103a\u104b \u101e\u1004\u103a\u101e\u100a\u103a 400V MCC \u1021\u101e\u1005\u103a\u1000\u102d\u102f \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1006\u103d\u1032\u101e\u100a\u103a\u1016\u103c\u1005\u103a\u1005\u1031\u104a 11kV substation \u1000\u102d\u102f \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u101e\u100a\u103a\u1016\u103c\u1005\u103a\u1005\u1031\u104a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1019\u1000\u103c\u102c\u1001\u100f breaker \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u101e\u100a\u103a\u1016\u103c\u1005\u103a\u1005\u1031\u104a \u101e\u1004\u103a\u104f system \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u101e\u102f\u1036\u1038\u101e\u1015\u103a\u1015\u103c\u102e\u1038 \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u104a \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1000\u102d\u102f \u1019\u103b\u103e\u1010\u1005\u1031\u1019\u100a\u1037\u103a IEC \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f\u101b\u103e\u102d\u101e\u1031\u102c \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1015\u102b\u1019\u100a\u103a\u104b.<\/p>\n<p><strong><a href=\"https:\/\/test.viox.com\/my\/contact\/\">\u101a\u1014\u1031\u1037 VIOX \u101e\u102d\u102f\u1037 \u1006\u1000\u103a\u101e\u103d\u101a\u103a\u1015\u102b-<\/a> \u101a\u1014\u1031\u1037<\/strong> for:<\/p>\n<ul>\n<li>Circuit breaker \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>Short-circuit \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f \u101c\u1031\u1037\u101c\u102c\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/li>\n<li>Switchgear \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1010\u1015\u103a\u1006\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u1021\u1000\u1032\u1016\u103c\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>\u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f \u1021\u1000\u1031\u102c\u1004\u103a\u1038\u1006\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u1021\u1031\u102c\u1004\u103a\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a TCO \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038<\/li>\n<\/ul>\n<p><em>\u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1006\u102d\u102f\u101e\u1031\u102c\u103a breaker \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1019\u103e\u102c\u1038\u101a\u103d\u1004\u103a\u1038\u1005\u103d\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1000\u103c\u102e\u1038\u101b\u102f\u1036\u101e\u102c\u1019\u1000 \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u101c\u100a\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/em><\/p>\n<\/div>\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>You&#8217;re staring at two circuit breaker datasheets for your 15kV switchgear project. Both show voltage ratings up to 690V. Both list impressive breaking capacities. On paper, they look interchangeable. They&#8217;re not. Choose wrong\u2014install an Air Circuit Breaker (ACB) where you need a Vacuum Circuit Breaker (VCB), or vice versa\u2014and you&#8217;re not just violating IEC standards. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20230,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-20217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/20217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/comments?post=20217"}],"version-history":[{"count":7,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/20217\/revisions"}],"predecessor-version":[{"id":20229,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/20217\/revisions\/20229"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media\/20230"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media?parent=20217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/categories?post=20217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/tags?post=20217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}