{"id":6311,"date":"2024-09-19T07:14:16","date_gmt":"2024-09-18T23:14:16","guid":{"rendered":"https:\/\/viox.com\/?p=6311"},"modified":"2025-04-01T19:56:05","modified_gmt":"2025-04-01T11:56:05","slug":"dc-isolator-switches-essential-safety-components-for-solar-pv-systems","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/dc-isolator-switches-essential-safety-components-for-solar-pv-systems\/","title":{"rendered":"C\u00f4ng t\u1eafc c\u00e1ch ly DC: Linh ki\u1ec7n an to\u00e0n thi\u1ebft y\u1ebfu cho h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi PV"},"content":{"rendered":"<div class=\"product-intro\">C\u00e1c c\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 thi\u1ebft b\u1ecb an to\u00e0n thi\u1ebft y\u1ebfu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i th\u1ee7 c\u00f4ng c\u00e1c ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u kh\u1ecfi m\u1ea1ch \u0111i\u1ec7n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, h\u1ec7 th\u1ed1ng pin v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng DC kh\u00e1c \u0111\u1ec3 cho ph\u00e9p b\u1ea3o tr\u00ec an to\u00e0n v\u00e0 t\u1eaft kh\u1ea9n c\u1ea5p.<\/p>\n<h2>C\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 g\u00ec<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-12197\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/viox-DC-Isolator-Switches.webp\" alt=\"viox DC Isolator Switches\" width=\"800\" height=\"436\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/viox-DC-Isolator-Switches.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/viox-DC-Isolator-Switches-300x164.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/viox-DC-Isolator-Switches-768x419.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/viox-DC-Isolator-Switches-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/viox-DC-Isolator-Switches-600x327.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 c\u00e1c thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng cung c\u1ea5p ch\u1ee9c n\u0103ng an to\u00e0n quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n b\u1eb1ng c\u00e1ch t\u1ea1o ra s\u1ef1 ng\u1eaft k\u1ebft n\u1ed1i v\u1eadt l\u00fd v\u00e0 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y gi\u1eefa c\u00e1c ngu\u1ed3n \u0111i\u1ec7n v\u00e0 m\u1ea1ch \u0111i\u1ec7n. C\u00e1c c\u00f4ng t\u1eafc n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ec7 th\u1ed1ng t\u1ea5m pin m\u1eb7t tr\u1eddi v\u00e0 c\u00e1c b\u1ed9 l\u01b0u tr\u1eef pin, n\u01a1i ch\u00fang cho ph\u00e9p c\u00e1ch ly an to\u00e0n ngu\u1ed3n \u0111i\u1ec7n DC \u0111\u1ec3 b\u1ea3o tr\u00ec, s\u1eeda ch\u1eefa ho\u1eb7c c\u00e1c t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p. Kh\u00f4ng gi\u1ed1ng nh\u01b0 b\u1ed9 ng\u1eaft m\u1ea1ch, b\u1ed9 c\u00e1ch ly DC \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh th\u1ee7 c\u00f4ng v\u00e0 kh\u00f4ng cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 t\u1ef1 \u0111\u1ed9ng ch\u1ed1ng l\u1ea1i qu\u00e1 d\u00f2ng ho\u1eb7c ng\u1eafn m\u1ea1ch. M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a ch\u00fang l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c tr\u00ean h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u00e0 kh\u00f4ng c\u00f3 nguy c\u01a1 d\u00f2ng \u0111i\u1ec7n b\u1ea5t ng\u1edd, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu trong c\u00e1c \u1ee9ng d\u1ee5ng DC kh\u00e1c nhau.<\/p>\n<h2>C\u1ea5u tr\u00fac v\u00e0 Ch\u1ee9c n\u0103ng<\/h2>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC bao g\u1ed3m hai th\u00e0nh ph\u1ea7n ch\u00ednh: m\u1ed9t ph\u1ea7n ti\u1ebfp x\u00fac d\u1eabn \u0111i\u1ec7n v\u1edbi nhi\u1ec1u b\u1ed9 ti\u1ebfp \u0111i\u1ec3m \u0111\u1ed9ng v\u00e0 t\u0129nh, v\u00e0 m\u1ed9t c\u01a1 ch\u1ebf v\u1eadn h\u00e0nh th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng tay quay. Ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang xoay quanh vi\u1ec7c t\u1ea1o ra m\u1ed9t s\u1ef1 ng\u1eaft k\u1ebft n\u1ed1i r\u00f5 r\u00e0ng v\u00e0 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y gi\u1eefa ngu\u1ed3n \u0111i\u1ec7n v\u00e0 m\u1ea1ch \u0111i\u1ec7n, cho ph\u00e9p c\u00e1ch ly th\u1ee7 c\u00f4ng c\u00e1c ngu\u1ed3n \u0111i\u1ec7n DC \u0111\u1ec3 b\u1ea3o tr\u00ec, s\u1eeda ch\u1eefa v\u00e0 c\u00e1c t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i v\u00e0 ng\u1eaft k\u1ebft n\u1ed1i nhanh ch\u00f3ng th\u00f4ng qua xoay tay c\u1ea7m, cung c\u1ea5p kh\u1ea3 n\u0103ng c\u00e1ch ly ho\u00e0n to\u00e0n gi\u1eefa \u0111\u1ea7u t\u1ea3i v\u00e0 ngu\u1ed3n \u0111i\u1ec7n. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n, gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng pin v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o kh\u00e1c, b\u1ed9 c\u00e1ch ly DC \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.<\/p>\n<h2>Linh ki\u1ec7n c\u00e1ch ly DC<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-12187\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Components.webp\" alt=\"DC Isolator Components\" width=\"650\" height=\"485\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Components.webp 650w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Components-300x224.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Components-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Components-600x448.webp 600w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC bao g\u1ed3m m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n ch\u00ednh ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1ch ly an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 c\u00e1c ngu\u1ed3n \u0111i\u1ec7n DC:<\/p>\n<ul>\n<li>V\u1ecf b\u1ecdc: M\u1ed9t l\u1edbp v\u1ecf b\u1ea3o v\u1ec7 b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong kh\u1ecfi c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li>Ti\u1ebfp \u0111i\u1ec3m: C\u00e1c ph\u1ea7n t\u1eed d\u1eabn \u0111i\u1ec7n ch\u00ednh t\u1ea1o ho\u1eb7c ng\u1eaft k\u1ebft n\u1ed1i \u0111i\u1ec7n, th\u01b0\u1eddng bao g\u1ed3m c\u1ea3 ti\u1ebfp \u0111i\u1ec3m ch\u00ednh cho d\u00f2ng \u0111i\u1ec7n s\u01a1 c\u1ea5p v\u00e0 ti\u1ebfp \u0111i\u1ec3m ph\u1ee5 \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u00e1o hi\u1ec7u.<\/li>\n<li>C\u01a1 ch\u1ebf v\u1eadn h\u00e0nh: M\u1ed9t h\u1ec7 th\u1ed1ng th\u1ee7 c\u00f4ng ho\u1eb7c t\u1ef1 \u0111\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u00f2n b\u1ea9y ho\u1eb7c \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, \u0111\u1ec3 \u0111\u00f3ng v\u00e0 m\u1edf c\u00e1c ti\u1ebfp \u0111i\u1ec3m.<\/li>\n<li>K\u1ebft n\u1ed1i \u0111\u1ea7u cu\u1ed1i: C\u00e1c \u0111i\u1ec3m m\u00e0 d\u00e2y d\u1eabn \u0111\u1ebfn v\u00e0 \u0111i giao ti\u1ebfp v\u1edbi c\u00f4ng t\u1eafc, cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<\/li>\n<li>\u1ed0ng d\u1eadp h\u1ed3 quang: C\u00e1c ph\u1ea7n m\u1edf r\u1ed9ng d\u1ea1ng t\u1ea5m gi\u00fap d\u1eadp t\u1eaft h\u1ed3 quang \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh di chuy\u1ec3n ti\u1ebfp \u0111i\u1ec3m, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 an to\u00e0n v\u00e0 tu\u1ed5i th\u1ecd.<\/li>\n<\/ul>\n<p>C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee5 th\u1ec3 c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n DC, bao g\u1ed3m m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n DC kh\u00e1c nhau.<\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng an to\u00e0n c\u1ee7a b\u1ed9 c\u00e1ch ly DC<\/h2>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC k\u1ebft h\u1ee3p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng an to\u00e0n ch\u00ednh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady v\u00e0 b\u1ea3o v\u1ec7 c\u1ea3 thi\u1ebft b\u1ecb v\u00e0 nh\u00e2n vi\u00ean. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c trang b\u1ecb c\u01a1 ch\u1ebf kh\u00f3a-tagout, ng\u0103n ng\u1eeba ho\u1ea1t \u0111\u1ed9ng v\u00f4 t\u00ecnh trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec. Kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i v\u00e0 ng\u1eaft k\u1ebft n\u1ed1i nhanh ch\u00f3ng, \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00f4ng qua xoay tay c\u1ea7m, cho ph\u00e9p c\u00e1ch ly nhanh ch\u00f3ng trong c\u00e1c t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p. Ngo\u00e0i ra, m\u1ed9t s\u1ed1 ki\u1ec3u m\u00e1y cung c\u1ea5p c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c \u0111\u1ea5u d\u00e2y s\u1eb5n, \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u00e0 gi\u1ea3m c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn an to\u00e0n. S\u1ef1 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi b\u1ed9 c\u00e1ch ly DC \u0111\u00f3ng vai tr\u00f2 l\u00e0 m\u1ed9t ch\u1ec9 b\u00e1o r\u00f5 r\u00e0ng v\u1ec1 tr\u1ea1ng th\u00e1i ng\u1eaft k\u1ebft n\u1ed1i c\u1ee7a m\u1ea1ch, t\u0103ng c\u01b0\u1eddng c\u00e1c giao th\u1ee9c an to\u00e0n trong c\u00e1c \u1ee9ng d\u1ee5ng DC kh\u00e1c nhau nh\u01b0 h\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n v\u00e0 c\u00e1c b\u1ed9 l\u01b0u tr\u1eef pin.<\/p>\n<h2>B\u1ed9 c\u00e1ch ly DC so v\u1edbi B\u1ed9 ng\u1eaft m\u1ea1ch<\/h2>\n<p>M\u1eb7c d\u00f9 c\u1ea3 hai \u0111\u1ec1u ph\u1ee5c v\u1ee5 c\u00e1c ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, nh\u01b0ng b\u1ed9 c\u00e1ch ly DC v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 c\u00e1c vai tr\u00f2 v\u00e0 kh\u1ea3 n\u0103ng kh\u00e1c nhau. B\u1ed9 c\u00e1ch ly DC l\u00e0 c\u00e1c thi\u1ebft b\u1ecb v\u1eadn h\u00e0nh th\u1ee7 c\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i v\u00e0 c\u00e1ch ly m\u1ea1ch c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y, thi\u1ebfu c\u00e1c t\u00ednh n\u0103ng b\u1ea3o v\u1ec7 t\u1ef1 \u0111\u1ed9ng. Ng\u01b0\u1ee3c l\u1ea1i, b\u1ed9 ng\u1eaft m\u1ea1ch cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 t\u1ef1 \u0111\u1ed9ng ch\u1ed1ng qu\u00e1 d\u00f2ng v\u00e0 ng\u1eafn m\u1ea1ch th\u00f4ng qua c\u00e1c c\u1ea5u tr\u00fac b\u00ean trong ph\u1ee9c t\u1ea1p h\u01a1n, bao g\u1ed3m c\u01a1 ch\u1ebf d\u1eadp t\u1eaft h\u1ed3 quang. S\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n n\u00e0y l\u00e0m cho b\u1ed9 c\u00e1ch ly DC tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho vi\u1ec7c b\u1ea3o tr\u00ec theo k\u1ebf ho\u1ea1ch v\u00e0 t\u1eaft kh\u1ea9n c\u1ea5p trong h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 pin, trong khi b\u1ed9 ng\u1eaft m\u1ea1ch v\u01b0\u1ee3t tr\u1ed9i trong vi\u1ec7c cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 t\u1ef1 \u0111\u1ed9ng, li\u00ean t\u1ee5c ch\u1ed1ng l\u1ea1i c\u00e1c l\u1ed7i \u0111i\u1ec7n.<\/p>\n<h2>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00f4ng t\u1eafc c\u00e1ch ly DC v\u00e0 AC<\/h2>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC v\u00e0 AC ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c lo\u1ea1i h\u1ec7 th\u1ed1ng \u0111i\u1ec7n kh\u00e1c nhau. C\u00e1c kh\u00e1c bi\u1ec7t ch\u00ednh bao g\u1ed3m:<\/p>\n<ul>\n<li>Lo\u1ea1i d\u00f2ng \u0111i\u1ec7n: B\u1ed9 c\u00e1ch ly DC x\u1eed l\u00fd d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u, trong khi b\u1ed9 c\u00e1ch ly AC qu\u1ea3n l\u00fd d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u.<\/li>\n<li>\u0110\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n: B\u1ed9 c\u00e1ch ly DC th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cho \u0111i\u1ec7n \u00e1p th\u1ea5p h\u01a1n nh\u01b0ng c\u00f3 th\u1ec3 x\u1eed l\u00fd d\u00f2ng \u0111i\u1ec7n cao h\u01a1n, trong khi b\u1ed9 c\u00e1ch ly AC th\u01b0\u1eddng c\u00f3 \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p cao h\u01a1n.<\/li>\n<li>\u1ee8ng d\u1ee5ng: B\u1ed9 c\u00e1ch ly DC ph\u1ed5 bi\u1ebfn trong h\u1ec7 th\u1ed1ng PV m\u1eb7t tr\u1eddi, l\u01b0u tr\u1eef pin v\u00e0 xe \u0111i\u1ec7n, trong khi b\u1ed9 c\u00e1ch ly AC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n AC d\u00e2n d\u1ee5ng, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p.<\/li>\n<li>C\u01a1 ch\u1ebf chuy\u1ec3n m\u1ea1ch: B\u1ed9 c\u00e1ch ly DC ph\u1ea3i chuy\u1ec3n c\u1ea3 d\u00e2y d\u01b0\u01a1ng v\u00e0 d\u00e2y \u00e2m, trong khi b\u1ed9 c\u00e1ch ly AC chuy\u1ec3n d\u00e2y n\u00f3ng v\u00e0 d\u00e2y trung t\u00ednh cho h\u1ec7 th\u1ed1ng m\u1ed9t pha ho\u1eb7c ba d\u00e2y \u0111i\u1ec7n \u00e1p v\u00e0 d\u00e2y trung t\u00ednh cho h\u1ec7 th\u1ed1ng ba pha.<\/li>\n<li>C\u00e2n nh\u1eafc v\u1ec1 an to\u00e0n: B\u1ed9 c\u00e1ch ly DC y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng tri\u1ec7t ti\u00eau h\u1ed3 quang m\u1ea1nh m\u1ebd h\u01a1n do b\u1ea3n ch\u1ea5t kh\u00f4ng \u0111\u1ed5i c\u1ee7a d\u00f2ng \u0111i\u1ec7n DC, khi\u1ebfn ch\u00fang th\u01b0\u1eddng ph\u1ee9c t\u1ea1p h\u01a1n so v\u1edbi c\u00e1c \u0111\u1ed1i t\u00e1c AC c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n<h2>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t \u0111\u1ec3 l\u1eafp \u0111\u1eb7t c\u00f4ng t\u1eafc c\u00e1ch ly DC<\/h2>\n<p>Khi l\u1eafp \u0111\u1eb7t c\u00f4ng t\u1eafc c\u00e1ch ly DC, h\u00e3y tu\u00e2n theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u:<\/p>\n<ul>\n<li>G\u1eafn c\u00f4ng t\u1eafc \u1edf v\u1ecb tr\u00ed d\u1ec5 ti\u1ebfp c\u1eadn, t\u1ed1t nh\u1ea5t l\u00e0 g\u1ea7n m\u1ea1ch ho\u1eb7c thi\u1ebft b\u1ecb m\u00e0 n\u00f3 \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li>S\u1eed d\u1ee5ng c\u00e1c v\u1ecf b\u1ecdc th\u00edch h\u1ee3p \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ed9p nh\u1ef1a ho\u1eb7c nh\u00f4m t\u00f9y thu\u1ed9c v\u00e0o m\u00f4i tr\u01b0\u1eddng l\u1eafp \u0111\u1eb7t.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o k\u00edch th\u01b0\u1edbc c\u00e1p ph\u00f9 h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng c\u00e1p c\u00e1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cho \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<li>C\u1ed1 \u0111\u1ecbnh c\u00e1c k\u1ebft n\u1ed1i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ea7u n\u1ed1i c\u00e1p \u0111\u1ec3 ng\u0103n ng\u1eeba n\u1edbi l\u1ecfng ng\u1eabu nhi\u00ean v\u00e0 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a h\u01a1i \u1ea9m.<\/li>\n<li>G\u1eafn nh\u00e3n c\u00f4ng t\u1eafc r\u00f5 r\u00e0ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ea1ch m\u00e0 n\u00f3 \u0111i\u1ec1u khi\u1ec3n v\u00e0 cung c\u1ea5p c\u00e1c c\u1ea3nh b\u00e1o an to\u00e0n.<\/li>\n<li>T\u00edch h\u1ee3p b\u1ed9 c\u00e1ch ly DC v\u1edbi c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 kh\u00e1c nh\u01b0 b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng an to\u00e0n cho h\u1ec7 th\u1ed1ng.<\/li>\n<li>Tu\u00e2n theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u1ec1 c\u00e1c k\u1ef9 thu\u1eadt l\u1eafp \u0111\u1eb7t c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1eafp \u0111\u1ebf, khung g\u1ea7m, thanh DIN ho\u1eb7c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, t\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng.<\/li>\n<li>Lu\u00f4n \u01b0u ti\u00ean an to\u00e0n b\u1eb1ng c\u00e1ch t\u1eaft ngu\u1ed3n tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t, s\u1eed d\u1ee5ng c\u00e1c d\u1ee5ng c\u1ee5 c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111eo thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 c\u00e1 nh\u00e2n th\u00edch h\u1ee3p.<\/li>\n<\/ul>\n<h2>\u0110\u1ea5u d\u00e2y c\u00f4ng t\u1eafc c\u00e1ch ly DC<\/h2>\n<p>\u0110\u1ec3 \u0111\u1ea5u d\u00e2y c\u00f4ng t\u1eafc c\u00e1ch ly DC m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c:<\/p>\n<ul>\n<li>X\u00e1c \u0111\u1ecbnh ngu\u1ed3n \u0111i\u1ec7n v\u00e0 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u00e1c \u0111\u1ea7u c\u1ef1c d\u01b0\u01a1ng (+) v\u00e0 \u00e2m (-).<\/li>\n<li>T\u1eaft ngu\u1ed3n tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u c\u00f4ng vi\u1ec7c.<\/li>\n<li>G\u1eafn c\u00f4ng t\u1eafc c\u00e1ch ly \u1edf v\u1ecb tr\u00ed d\u1ec5 ti\u1ebfp c\u1eadn g\u1ea7n m\u1ea1ch.<\/li>\n<li>K\u1ebft n\u1ed1i c\u00e1p d\u01b0\u01a1ng v\u1edbi c\u00e1c \u0111\u1ea7u c\u1ef1c 1 v\u00e0 2, v\u00e0 c\u00e1p \u00e2m v\u1edbi c\u00e1c \u0111\u1ea7u c\u1ef1c 3 v\u00e0 4 theo c\u1ea5u h\u00ecnh \u0111\u01b0\u1eddng ch\u00e9o.<\/li>\n<li>S\u1eed d\u1ee5ng c\u00e1c \u0111\u1ea7u n\u1ed1i c\u00e1p \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh c\u00e1c k\u1ebft n\u1ed1i v\u00e0 ng\u0103n ng\u1eeba n\u1edbi l\u1ecfng.<\/li>\n<li>Th\u1ef1c hi\u1ec7n ki\u1ec3m tra t\u00ednh li\u00ean t\u1ee5c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ea5u d\u00e2y \u0111\u00fang c\u00e1ch.<\/li>\n<li>G\u1eafn nh\u00e3n c\u00f4ng t\u1eafc r\u00f5 r\u00e0ng v\u00e0 k\u1ebft n\u1ed1i l\u1ea1i v\u1edbi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n s\u1ea1c ho\u1eb7c thi\u1ebft b\u1ecb li\u00ean quan.<\/li>\n<li>Lu\u00f4n tu\u00e2n theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, v\u00ec c\u1ea5u h\u00ecnh \u0111\u1ea5u d\u00e2y c\u00f3 th\u1ec3 kh\u00e1c nhau gi\u1eefa c\u00e1c ki\u1ec3u m\u00e1y. \u0110\u1ea5u d\u00e2y \u0111\u00fang c\u00e1ch l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 an to\u00e0n v\u00e0 ch\u1ee9c n\u0103ng trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n DC nh\u01b0 h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi.<\/li>\n<\/ul>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"B\u1ed9 c\u00e1ch ly DC - \u0110\u1ea5u d\u00e2y c\u00f4ng t\u1eafc ng\u1eaft k\u1ebft n\u1ed1i h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/wO0p-2DwLzc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<h2>C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u00e0 M\u1eb9o kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 cho b\u1ed9 c\u00e1ch ly DC<\/h2>\n<p>B\u1ed9 c\u00e1ch ly DC c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p c\u1ea7n kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1. M\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p l\u00e0 s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a n\u01b0\u1edbc, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i \u0111i\u1ec7n v\u00e0 nguy c\u01a1 h\u1ecfa ho\u1ea1n ti\u1ec1m \u1ea9n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi. \u0110\u1ec3 ng\u0103n ch\u1eb7n \u0111i\u1ec1u n\u00e0y, h\u00e3y \u0111\u1ea3m b\u1ea3o l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch v\u1edbi \u0111\u1ea7u v\u00e0o t\u1eeb tr\u00ean xu\u1ed1ng <a href=\"https:\/\/test.viox.com\/vi\/danh-muc-san-pham\/new-energy-series\/combiner-box\/\">v\u1ecf b\u1ecdc<\/a>, \u1ed1ng d\u1eabn \u0111\u01b0\u1ee3c d\u00e1n \u0111\u00fang c\u00e1ch v\u00e0 v\u1eadt li\u1ec7u ch\u1ed1ng tia c\u1ef1c t\u00edm.<\/p>\n<p>M\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1c l\u00e0 h\u1ed3 quang khi b\u1ed9 c\u00e1ch ly b\u1ecb t\u1eaft khi c\u00f3 t\u1ea3i, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 cho th\u1ea5y bi\u1ebfn t\u1ea7n \u0111ang c\u1ea5p ng\u01b0\u1ee3c ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n b\u1ecb l\u1ed7i. N\u1ebfu b\u1ea1n g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 n\u00e0y, h\u00e3y ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n AC t\u1ea1i c\u00e1c k\u1ebft n\u1ed1i b\u1ed9 c\u00e1ch ly DC v\u00e0 c\u00e2n nh\u1eafc thay th\u1ebf bi\u1ebfn t\u1ea7n. B\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i th\u00edch h\u1ee3p v\u00e0 \u0111\u1ea3m b\u1ea3o v\u1ecf b\u1ecdc cung c\u1ea5p kh\u1ea3 n\u0103ng c\u00e1ch ly k\u00e9p ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ed1i nguy hi\u1ec3m ngo\u00e0i tr\u1eddi. N\u1ebfu x\u1ea3y ra l\u1ed7i c\u00e1ch ly, h\u00e3y ki\u1ec3m tra c\u00f3 h\u1ec7 th\u1ed1ng c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng, bao g\u1ed3m c\u00e1c m\u00f4-\u0111un v\u00e0 b\u1ed9 t\u1ed1i \u01b0u h\u00f3a n\u0103ng l\u01b0\u1ee3ng, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ngu\u1ed3n g\u1ed1c c\u1ee7a v\u1ea5n \u0111\u1ec1.<\/p>\n<h2>\u1ee8ng d\u1ee5ng b\u1ed9 c\u00e1ch ly DC<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-12196\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Applications.webp\" alt=\"DC Isolator Applications\" width=\"800\" height=\"446\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Applications.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Applications-300x167.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Applications-768x428.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Applications-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/DC-Isolator-Applications-600x335.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau, n\u01a1i s\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC). Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a ch\u00fang l\u00e0 cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n an to\u00e0n \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n DC \u0111\u1ec3 b\u1ea3o tr\u00ec, s\u1eeda ch\u1eefa ho\u1eb7c t\u1eaft kh\u1ea9n c\u1ea5p. C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh bao g\u1ed3m:<\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n m\u1eb7t tr\u1eddi (PV): B\u1ed9 c\u00e1ch ly DC \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa c\u00e1c t\u1ea5m pin m\u1eb7t tr\u1eddi v\u00e0 bi\u1ebfn t\u1ea7n \u0111\u1ec3 c\u00e1ch ly an to\u00e0n m\u1ea1ch DC trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p.<\/li>\n<li>H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef pin: C\u00e1c c\u00f4ng t\u1eafc n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i pin kh\u1ecfi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n trong xe c\u1ed9, t\u00e0u thuy\u1ec1n v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng c\u1ed1 \u0111\u1ecbnh.<\/li>\n<li>B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p: B\u1ed9 c\u00e1ch ly DC cung c\u1ea5p kh\u1ea3 n\u0103ng c\u00e1ch ly ngu\u1ed3n \u0111i\u1ec7n DC cho \u0111\u1ed9ng c\u01a1 v\u00e0 \u1ed5 \u0111\u0129a, cho ph\u00e9p c\u00e1c quy tr\u00ecnh b\u1ea3o tr\u00ec an to\u00e0n.<\/li>\n<li>Trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 vi\u1ec5n th\u00f4ng: C\u00e1c c\u00f4ng t\u1eafc n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb ch\u1ea1y b\u1eb1ng DC kh\u1ecfi c\u00e1c ngu\u1ed3n \u0111i\u1ec7n nh\u01b0 b\u1ed9 ch\u1ec9nh l\u01b0u v\u00e0 b\u1ed9 pin, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng.<\/li>\n<\/ul>\n<p>Trong t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y, c\u00f4ng t\u1eafc c\u00e1ch ly DC \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng an to\u00e0n, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n b\u1ea3o tr\u00ec v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc v\u00e0 quy \u0111\u1ecbnh v\u1ec1 \u0111i\u1ec7n.<\/p>\n<h2>T\u0103ng c\u01b0\u1eddng an to\u00e0n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi<\/h2>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng s\u1ef1 an to\u00e0n c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n m\u1eb7t tr\u1eddi (PV) b\u1eb1ng c\u00e1ch cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3 ng\u1eaft k\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n DC do c\u00e1c t\u1ea5m pin m\u1eb7t tr\u1eddi t\u1ea1o ra kh\u1ecfi ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a h\u1ec7 th\u1ed1ng. Ch\u1ee9c n\u0103ng n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft v\u00ec m\u1ed9t s\u1ed1 l\u00fd do li\u00ean quan \u0111\u1ebfn an to\u00e0n:<\/p>\n<ul>\n<li>T\u1eaft kh\u1ea9n c\u1ea5p: Trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfa ho\u1ea1n ho\u1eb7c c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p kh\u00e1c, b\u1ed9 c\u00e1ch ly DC cho ph\u00e9p ng\u1eaft k\u1ebft n\u1ed1i nhanh ch\u00f3ng m\u1ea3ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, ng\u0103n ch\u1eb7n vi\u1ec7c ti\u1ebfp t\u1ee5c t\u1ea1o ra \u0111i\u1ec7n c\u00f3 th\u1ec3 g\u00e2y r\u1ee7i ro cho nh\u1eefng ng\u01b0\u1eddi \u1ee9ng c\u1ee9u \u0111\u1ea7u ti\u00ean.<\/li>\n<li>An to\u00e0n b\u1ea3o tr\u00ec: C\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c an to\u00e0n tr\u00ean bi\u1ebfn t\u1ea7n, h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c b\u1eb1ng c\u00e1ch c\u00e1ch ly ngu\u1ed3n \u0111i\u1ec7n DC, lo\u1ea1i b\u1ecf nguy c\u01a1 \u0111i\u1ec7n gi\u1eadt.<\/li>\n<li>Ng\u0103n ng\u1eeba h\u1ed3 quang: B\u1ed9 c\u00e1ch ly DC \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u1eaft m\u1ea1ch nhanh ch\u00f3ng, gi\u1ea3m thi\u1ec3u nguy c\u01a1 h\u1ed3 quang \u0111i\u1ec7n nguy hi\u1ec3m c\u00f3 th\u1ec3 x\u1ea3y ra khi ng\u1eaft k\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n DC khi c\u00f3 t\u1ea3i.<\/li>\n<li>Tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh: Nhi\u1ec1u quy t\u1eafc v\u00e0 ti\u00eau chu\u1ea9n v\u1ec1 \u0111i\u1ec7n y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t b\u1ed9 c\u00e1ch ly DC trong h\u1ec7 th\u1ed1ng PV m\u1eb7t tr\u1eddi \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec an to\u00e0n.<\/li>\n<\/ul>\n<p>B\u1eb1ng c\u00e1ch cung c\u1ea5p m\u1ed9t \u0111i\u1ec3m ng\u1eaft k\u1ebft n\u1ed1i v\u1eadt l\u00fd v\u00e0 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y, c\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u00e1c r\u1ee7i ro li\u00ean quan \u0111\u1ebfn ngu\u1ed3n \u0111i\u1ec7n DC \u0111i\u1ec7n \u00e1p cao trong c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n an to\u00e0n kh\u00f4ng th\u1ec3 thi\u1ebfu.<\/p>\n<h2>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u1ec7 th\u1ed1ng PV ph\u1ed5 qu\u00e1t<\/h2>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i h\u1ec7 th\u1ed1ng PV m\u1eb7t tr\u1eddi, nh\u01b0ng vi\u1ec7c tri\u1ec3n khai c\u1ee5 th\u1ec3 c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng. Ch\u00fang r\u1ea5t c\u1ea7n thi\u1ebft cho c\u1ea3 h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi n\u1ed1i l\u01b0\u1edbi v\u00e0 ngo\u00e0i l\u01b0\u1edbi, c\u0169ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng lai.<\/p>\n<p>C\u00e1c c\u00e2n nh\u1eafc ch\u00ednh bao g\u1ed3m:<\/p>\n<ul>\n<li>\u0110i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng: B\u1ed9 c\u00e1ch ly DC ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cho \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a c\u1ee7a m\u1ea3ng PV, th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 600V \u0111\u1ebfn 1500V trong c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i.<\/li>\n<li>C\u1ea5u h\u00ecnh chu\u1ed7i: \u0110\u1ed1i v\u1edbi c\u00e1c thi\u1ebft l\u1eadp \u0111a chu\u1ed7i, c\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ebfn b\u1ed9 c\u00e1ch ly 4 c\u1ef1c, 6 c\u1ef1c ho\u1eb7c 8 c\u1ef1c, trong khi c\u00e1c h\u1ec7 th\u1ed1ng chu\u1ed7i \u0111\u01a1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ed9 c\u00e1ch ly 2 c\u1ef1c.<\/li>\n<li>Y\u00eau c\u1ea7u ph\u00e1p l\u00fd: M\u1ed9t s\u1ed1 qu\u1ed1c gia quy \u0111\u1ecbnh b\u1eaft bu\u1ed9c b\u1ed9 c\u00e1ch ly DC b\u00ean ngo\u00e0i, trong khi nh\u1eefng qu\u1ed1c gia kh\u00e1c cho ph\u00e9p b\u1ed9 c\u00e1ch ly t\u00edch h\u1ee3p b\u00ean trong bi\u1ebfn t\u1ea7n.<\/li>\n<li>Y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng: V\u1ecf b\u1ecdc \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng IP66 th\u01b0\u1eddng c\u1ea7n thi\u1ebft cho c\u00e1c l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a b\u1ee5i v\u00e0 n\u01b0\u1edbc.<\/li>\n<\/ul>\n<p>M\u1eb7c d\u00f9 b\u1ed9 c\u00e1ch ly DC \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng PV m\u1eb7t tr\u1eddi, nh\u01b0ng \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ch\u1ecdn lo\u1ea1i v\u00e0 \u0111\u1ecbnh m\u1ee9c ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c quy \u0111\u1ecbnh c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7.<\/p>\n<h2>S\u1ea3n ph\u1ea9m li\u00ean quan:<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6261\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator.webp\" alt=\"VIOX UKPD32 Photovoltaic DC Isolator\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-UKPD32-Photovoltaic-DC-Isolator-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/test.viox.com\/vi\/dc-isolator-switch\/\">VIOX <span style=\"font-size: 1rem;\">C\u00f4ng t\u1eafc c\u00e1ch ly DC quang \u0111i\u1ec7n<\/span><\/a><\/p>\n<h2>B\u00e0i vi\u1ebft li\u00ean quan:<\/h2>\n<p><a href=\"https:\/\/test.viox.com\/vi\/ac-distribution-box-vs-dc-distribution-box-a-comprehensive-guide\/\">H\u1ed9p ph\u00e2n ph\u1ed1i AC so v\u1edbi H\u1ed9p ph\u00e2n ph\u1ed1i DC: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>DC isolator switches are essential safety devices designed to manually disconnect direct current power sources from electrical circuits, commonly used in solar installations, battery systems, and other DC applications to enable safe maintenance and emergency shutdowns. What Are DC Isolator Switches DC isolator switches are specialized devices that provide a crucial safety function in electrical [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6273,"comment_status":"closed","ping_status":"open","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-6311","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/6311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/comments?post=6311"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/6311\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/6273"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=6311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=6311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=6311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}