{"id":20601,"date":"2025-12-05T02:32:42","date_gmt":"2025-12-04T18:32:42","guid":{"rendered":"https:\/\/viox.com\/?p=20601"},"modified":"2025-12-05T02:32:45","modified_gmt":"2025-12-04T18:32:45","slug":"single-break-vs-double-break-mccb-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/single-break-vs-double-break-mccb-guide\/","title":{"rendered":"\u5355\u65ad\u70b9\u4e0e\u53cc\u65ad\u70b9\u5851\u58f3\u65ad\u8def\u5668\uff1a\u6027\u80fd\u53ca\u9009\u578b\u6307\u5357"},"content":{"rendered":"
\n

\u5728\u9009\u578b\u65f6 \u5851\u58f3\u65ad\u8def\u5668\uff08MCCB\uff09<\/a> \u7528\u4e8e\u5de5\u4e1a\u6216\u5546\u4e1a\u8bbe\u65bd\u65f6\uff0c\u60a8\u4f1a\u9047\u5230\u4e24\u79cd\u57fa\u672c\u7684\u89e6\u5934\u8bbe\u8ba1\u65b9\u6cd5\uff1a\u5355\u65ad\u70b9\u4e0e\u53cc\u65ad\u70b9\u7ed3\u6784\u3002\u8fd9\u79cd\u533a\u522b\u4e0d\u4ec5\u4ec5\u662f\u6280\u672f\u672f\u8bed\u2014\u2014\u5b83\u5f71\u54cd\u7740\u65ad\u8def\u5668\u5206\u65ad\u6545\u969c\u7535\u6d41\u7684\u65b9\u5f0f\u3001\u5236\u7ea6\u5176\u5206\u65ad\u80fd\u529b\u7b49\u7ea7\uff0c\u5e76\u51b3\u5b9a\u4e86\u6bcf\u79cd\u8bbe\u8ba1\u6700\u9002\u5408\u7684\u5e94\u7528\u573a\u666f\u3002.<\/p>\n

\u4e24\u79cd\u6280\u672f\u5747\u7b26\u5408IEC 60947-2\u6807\u51c6\uff0c\u82e5\u9009\u578b\u5f97\u5f53\u5747\u53ef\u63d0\u4f9b\u53ef\u9760\u7684\u4fdd\u62a4\u3002\u95ee\u9898\u4e0d\u5728\u4e8e\u54ea\u79cd\u8bbe\u8ba1\u662f\u666e\u904d\u201c\u66f4\u597d\u201d\u7684\uff0c\u800c\u5728\u4e8e\u54ea\u79cd\u66f4\u9002\u5408\u60a8\u7279\u5b9a\u7684\u6545\u969c\u7535\u6d41\u72b6\u51b5\u3001\u7535\u538b\u7b49\u7ea7\u53ca\u4fdd\u62a4\u8981\u6c42\u3002\u53cc\u65ad\u70b9MCCB\u5728\u9700\u8981\u4e25\u683c\u9650\u5236\u7535\u6d41\u7684\u9ad8\u6545\u969c\u7535\u6d41\u73af\u5883\u4e2d\u8868\u73b0\u51fa\u8272\uff1b\u800c\u5355\u65ad\u70b9\u8bbe\u8ba1\u5219\u5728\u8f83\u4f4e\u6545\u969c\u7535\u6d41\u5e94\u7528\u4e2d\u53ef\u80fd\u5177\u5907\u6210\u672c\u4f18\u52bf\u4e14\u6027\u80fd\u7a33\u5b9a\u3002.<\/p>\n

\u672c\u6307\u5357\u5c06\u8be6\u7ec6\u89e3\u6790\u5355\u65ad\u70b9\u4e0e\u53cc\u65ad\u70b9MCCB\u4e4b\u95f4\u7684\u673a\u68b0\u5dee\u5f02\u3001\u7535\u5f27\u5206\u65ad\u539f\u7406\u53ca\u6027\u80fd\u6743\u8861\u3002\u60a8\u5c06\u4e86\u89e3\u6bcf\u79cd\u6280\u672f\u7684\u5de5\u4f5c\u539f\u7406\u3001IEC 60947-2\u6d4b\u8bd5\u6570\u636e\u6240\u63ed\u793a\u7684\u6027\u80fd\u7279\u70b9\uff0c\u4ee5\u53ca\u5982\u4f55\u4e3a\u60a8\u7684\u8bbe\u65bd\u9009\u62e9\u6b63\u786e\u7684\u7ed3\u6784\u914d\u7f6e\u3002.<\/p>\n

Hi\u1ec3u Bi\u1ebft V\u1ec1 C\u1ea5u H\u00ecnh Li\u00ean L\u1ea1c<\/h2>\n

C\u00e1c thu\u1eadt ng\u1eef \u201cc\u1eaft \u0111\u01a1n\u201d v\u00e0 \u201cc\u1eaft \u0111\u00f4i\u201d m\u00f4 t\u1ea3 s\u1ed1 l\u01b0\u1ee3ng \u0111i\u1ec3m ng\u1eaft m\u1ea1ch tr\u00ean m\u1ed7i c\u1ef1c khi MCCB m\u1edf. S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u01a1 kh\u00ed n\u00e0y v\u1ec1 c\u01a1 b\u1ea3n \u0111\u1ecbnh h\u00ecnh h\u00e0nh vi h\u1ed3 quang, s\u1ef1 ph\u00e1t tri\u1ec3n \u0111i\u1ec7n \u00e1p v\u00e0 hi\u1ec7u su\u1ea5t ng\u1eaft m\u1ea1ch.<\/p>\n

Thi\u1ebft k\u1ebf c\u1eaft \u0111\u01a1n<\/h3>\n

Trong c\u1ea5u h\u00ecnh c\u1eaft \u0111\u01a1n, m\u1ed7i c\u1ef1c c\u00f3 m\u1ed9t c\u1eb7p ti\u1ebfp \u0111i\u1ec3m\u2014m\u1ed9t c\u1ed1 \u0111\u1ecbnh, m\u1ed9t di \u0111\u1ed9ng. Khi x\u1ea3y ra s\u1ef1 c\u1ed1 v\u00e0 c\u01a1 c\u1ea5u ng\u1eaft m\u1ea1ch k\u00edch ho\u1ea1t, ti\u1ebfp \u0111i\u1ec3m di \u0111\u1ed9ng t\u00e1ch kh\u1ecfi ti\u1ebfp \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh, t\u1ea1o ra m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn h\u1ed3 quang duy nh\u1ea5t. D\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u0111i\u1ec3m ng\u1eaft m\u1ea1ch n\u00e0y cho \u0111\u1ebfn khi h\u1ed3 quang \u0111\u01b0\u1ee3c d\u1eadp t\u1eaft trong bu\u1ed3ng d\u1eadp h\u1ed3 quang.<\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m c\u01a1 h\u1ecdc<\/strong>:<\/p>\n

    \n
  • M\u1ed9t ti\u1ebfp \u0111i\u1ec3m di \u0111\u1ed9ng tr\u00ean m\u1ed7i c\u1ef1c<\/li>\n
  • M\u1ed9t ti\u1ebfp \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh tr\u00ean m\u1ed7i c\u1ef1c<\/li>\n
  • M\u1ed9t bu\u1ed3ng d\u1eadp h\u1ed3 quang tr\u00ean m\u1ed7i c\u1ef1c<\/li>\n
  • C\u1ee5m ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1edbi \u00edt b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng h\u01a1n<\/li>\n
  • N\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang t\u1eadp trung trong m\u1ed9t bu\u1ed3ng d\u1eadp h\u1ed3 quang<\/li>\n<\/ul>\n

    MCCB c\u1eaft \u0111\u01a1n d\u1ef1a v\u00e0o thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang m\u1ea1nh m\u1ebd\u2014t\u1ea5m chia, cu\u1ed9n d\u00e2y th\u1ed5i t\u1eeb v\u00e0 h\u00ecnh d\u1ea1ng bu\u1ed3ng\u2014\u0111\u1ec3 d\u1eadp t\u1eaft h\u1ed3 quang nhanh ch\u00f3ng. To\u00e0n b\u1ed9 \u0111i\u1ec7n \u00e1p h\u1ed3 quang ph\u1ea3i ph\u00e1t tri\u1ec3n tr\u00ean kho\u1ea3ng c\u00e1ch duy nh\u1ea5t n\u00e0y.<\/p>\n

    Thi\u1ebft k\u1ebf c\u1eaft \u0111\u00f4i<\/h3>\n

    C\u1ea5u h\u00ecnh c\u1eaft \u0111\u00f4i s\u1eed d\u1ee5ng hai b\u1ed9 ti\u1ebfp \u0111i\u1ec3m tr\u00ean m\u1ed7i c\u1ef1c. Th\u00f4ng th\u01b0\u1eddng, m\u1ed9t ti\u1ebfp \u0111i\u1ec3m di \u0111\u1ed9ng trung t\u00e2m t\u00e1ch kh\u1ecfi hai ti\u1ebfp \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh (m\u1ed9t \u1edf tr\u00ean, m\u1ed9t \u1edf d\u01b0\u1edbi), t\u1ea1o ra hai \u0111\u01b0\u1eddng d\u1eabn h\u1ed3 quang n\u1ed1i ti\u1ebfp nhau. Khi b\u1ed9 ng\u1eaft m\u1ea1ch t\u00e1c \u0111\u1ed9ng, d\u00f2ng \u0111i\u1ec7n ph\u1ea3i ch\u1ea1y qua c\u1ea3 hai \u0111i\u1ec3m ng\u1eaft m\u1ea1ch \u0111\u1ed3ng th\u1eddi.<\/p>\n

    \u0110\u1eb7c \u0111i\u1ec3m c\u01a1 h\u1ecdc<\/strong>:<\/p>\n

      \n
    • M\u1ed9t ti\u1ebfp \u0111i\u1ec3m di \u0111\u1ed9ng trung t\u00e2m tr\u00ean m\u1ed7i c\u1ef1c<\/li>\n
    • Hai ti\u1ebfp \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh tr\u00ean m\u1ed7i c\u1ef1c (ho\u1eb7c c\u00e1c bi\u1ebfn th\u1ec3 v\u1edbi nhi\u1ec1u t\u1ed5 h\u1ee3p di \u0111\u1ed9ng\/c\u1ed1 \u0111\u1ecbnh)<\/li>\n
    • Hai bu\u1ed3ng d\u1eadp h\u1ed3 quang tr\u00ean m\u1ed7i c\u1ef1c (ho\u1eb7c m\u1ed9t bu\u1ed3ng chung x\u1eed l\u00fd c\u1ea3 hai h\u1ed3 quang)<\/li>\n
    • C\u1ee5m ti\u1ebfp \u0111i\u1ec3m v\u00e0 qu\u1ea3n l\u00fd h\u1ed3 quang ph\u1ee9c t\u1ea1p h\u01a1n<\/li>\n
    • N\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang \u0111\u01b0\u1ee3c chia gi\u1eefa hai \u0111i\u1ec3m ng\u1eaft m\u1ea1ch<\/li>\n<\/ul>\n

      V\u00ec hai h\u1ed3 quang ph\u00e1t tri\u1ec3n n\u1ed1i ti\u1ebfp nhau, t\u1ed5ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang l\u00e0 t\u1ed5ng c\u1ee7a c\u1ea3 hai kho\u1ea3ng c\u00e1ch. \u0110i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n n\u00e0y c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y gi\u1edbi h\u1ea1n d\u00f2ng nhanh h\u01a1n, nh\u01b0ng n\u00f3 c\u0169ng l\u00e0m t\u0103ng \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc l\u00ean c\u00e1c bu\u1ed3ng d\u1eadp h\u1ed3 quang v\u00e0 \u0111\u00f2i h\u1ecfi thi\u1ebft k\u1ebf bu\u1ed3ng c\u1ea9n th\u1eadn \u0111\u1ec3 qu\u1ea3n l\u00fd \u00e1p su\u1ea5t v\u00e0 s\u1ef1 \u0103n m\u00f2n v\u1eadt li\u1ec7u.<\/p>\n

      \"Side-by-side
      H\u00ecnh 1: So s\u00e1nh c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m. B\u00ean tr\u00e1i: Thi\u1ebft k\u1ebf c\u1eaft \u0111\u01a1n v\u1edbi m\u1ed9t ti\u1ebfp \u0111i\u1ec3m di \u0111\u1ed9ng v\u00e0 m\u1ed9t ti\u1ebfp \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh tr\u00ean m\u1ed7i c\u1ef1c, t\u1ea1o ra m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn h\u1ed3 quang. B\u00ean ph\u1ea3i: Thi\u1ebft k\u1ebf c\u1eaft \u0111\u00f4i v\u1edbi ti\u1ebfp \u0111i\u1ec3m di \u0111\u1ed9ng trung t\u00e2m v\u00e0 hai ti\u1ebfp \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh tr\u00ean m\u1ed7i c\u1ef1c, t\u1ea1o ra hai \u0111\u01b0\u1eddng d\u1eabn h\u1ed3 quang n\u1ed1i ti\u1ebfp nhau. C\u1ea5u h\u00ecnh c\u1eaft \u0111\u00f4i ph\u00e1t tri\u1ec3n t\u1ed5ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n nh\u01b0ng \u0111\u00f2i h\u1ecfi qu\u1ea3n l\u00fd bu\u1ed3ng ph\u1ee9c t\u1ea1p h\u01a1n.<\/figcaption><\/figure>\n

      Nguy\u00ean t\u1eafc ng\u1eaft h\u1ed3 quang<\/h2>\n

      Khi MCCB m\u1edf trong \u0111i\u1ec1u ki\u1ec7n s\u1ef1 c\u1ed1, c\u00e1c ti\u1ebfp \u0111i\u1ec3m t\u00e1ch ra v\u00e0 m\u1ed9t h\u1ed3 quang \u0111i\u1ec7n h\u00ecnh th\u00e0nh\u2014m\u1ed9t k\u00eanh plasma d\u1eabn d\u00f2ng s\u1ef1 c\u1ed1 qua khe h\u1edf kh\u00f4ng kh\u00ed. Ng\u1eaft h\u1ed3 quang n\u00e0y l\u00e0 c\u00f4ng vi\u1ec7c ch\u00ednh c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch. C\u00e1ch thi\u1ebft k\u1ebf c\u1eaft \u0111\u01a1n v\u00e0 c\u1eaft \u0111\u00f4i qu\u1ea3n l\u00fd qu\u00e1 tr\u00ecnh n\u00e0y kh\u00e1c nhau \u0111\u00e1ng k\u1ec3.<\/p>\n

      C\u00e1ch \u0111i\u1ec7n \u00e1p h\u1ed3 quang th\u00fac \u0111\u1ea9y ng\u1eaft m\u1ea1ch<\/h3>\n

      Ng\u1eaft h\u1ed3 quang ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c x\u00e2y d\u1ef1ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang \u0111\u1ee7 \u0111\u1ec3 ch\u1ed1ng l\u1ea1i \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ea9y d\u00f2ng \u0111i\u1ec7n v\u1ec1 kh\u00f4ng. \u0110i\u1ec7n \u00e1p h\u1ed3 quang t\u0103ng l\u00ean khi kho\u1ea3ng c\u00e1ch ti\u1ebfp \u0111i\u1ec3m m\u1edf r\u1ed9ng v\u00e0 khi h\u1ed3 quang t\u01b0\u01a1ng t\u00e1c v\u1edbi bu\u1ed3ng d\u1eadp h\u1ed3 quang (l\u00e0m m\u00e1t, k\u00e9o d\u00e0i v\u00e0 chia t\u00e1ch th\u00f4ng qua c\u00e1c t\u1ea5m chia). Khi \u0111i\u1ec7n \u00e1p h\u1ed3 quang v\u01b0\u1ee3t qu\u00e1 \u0111i\u1ec7n \u00e1p ph\u1ee5c h\u1ed3i h\u1ec7 th\u1ed1ng t\u1ea1i \u0111i\u1ec3m c\u1eaft d\u00f2ng v\u1ec1 kh\u00f4ng (trong h\u1ec7 th\u1ed1ng AC), h\u1ed3 quang t\u1eaft v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch ng\u1eaft th\u00e0nh c\u00f4ng s\u1ef1 c\u1ed1.<\/p>\n

      Nguy\u00ean t\u1eafc ch\u00ednh<\/strong>: \u0110i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n = gi\u1ea3m d\u00f2ng nhanh h\u01a1n = gi\u1edbi h\u1ea1n d\u00f2ng m\u1ea1nh h\u01a1n.<\/p>\n

      H\u00e0nh vi h\u1ed3 quang c\u1eaft \u0111\u01a1n<\/h3>\n

      Trong MCCB c\u1eaft \u0111\u01a1n, m\u1ed9t h\u1ed3 quang ph\u00e1t tri\u1ec3n tr\u00ean m\u1ed7i c\u1ef1c. \u0110i\u1ec7n \u00e1p h\u1ed3 quang ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n

        \n
      • Kho\u1ea3ng c\u00e1ch t\u00e1ch ti\u1ebfp \u0111i\u1ec3m<\/li>\n
      • Thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang (s\u1ed1 l\u01b0\u1ee3ng v\u00e0 kho\u1ea3ng c\u00e1ch c\u1ee7a c\u00e1c t\u1ea5m chia)<\/li>\n
      • C\u01b0\u1eddng \u0111\u1ed9 th\u1ed5i t\u1eeb (n\u1ebfu c\u00f3)<\/li>\n
      • T\u1ed1c \u0111\u1ed9 l\u00e0m m\u00e1t h\u1ed3 quang trong bu\u1ed3ng<\/li>\n<\/ul>\n

        \u0110i\u1ec7n \u00e1p h\u1ed3 quang c\u1eaft \u0111\u01a1n \u0111i\u1ec3n h\u00ecnh dao \u0111\u1ed9ng t\u1eeb 30V \u0111\u1ebfn 100V t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf bu\u1ed3ng v\u00e0 m\u1ee9c d\u00f2ng \u0111i\u1ec7n. B\u1ed9 ng\u1eaft m\u1ea1ch ph\u1ea3i d\u1ef1a v\u00e0o h\u00ecnh d\u1ea1ng bu\u1ed3ng hi\u1ec7u qu\u1ea3 v\u00e0 chuy\u1ec3n \u0111\u1ed9ng ti\u1ebfp \u0111i\u1ec3m nhanh \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n d\u00f2ng nhanh ch\u00f3ng.<\/p>\n

        C\u00e2n nh\u1eafc v\u1ec1 hi\u1ec7u su\u1ea5t<\/strong>:<\/p>\n

          \n
        • N\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang t\u1eadp trung trong m\u1ed9t bu\u1ed3ng, bu\u1ed3ng n\u00e0y ph\u1ea3i x\u1eed l\u00fd t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng su\u1ea5t nhi\u1ec7t v\u00e0 \u00e1p su\u1ea5t<\/li>\n
        • \u1ede d\u00f2ng s\u1ef1 c\u1ed1 cao, vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p h\u1ed3 quang \u0111\u1ee7 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u h\u00e0nh tr\u00ecnh ti\u1ebfp \u0111i\u1ec3m d\u00e0i h\u01a1n ho\u1eb7c thi\u1ebft k\u1ebf bu\u1ed3ng m\u1ea1nh m\u1ebd h\u01a1n<\/li>\n
        • \u1ede d\u00f2ng s\u1ef1 c\u1ed1 th\u1ea5p, thi\u1ebft k\u1ebf c\u1eaft \u0111\u01a1n \u0111\u00e3 ch\u1ee9ng minh hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u00f3 h\u00e0nh vi \u0111\u00f3ng l\u1ea1i t\u1ea1m th\u1eddi \u0111\u01b0\u1ee3c quan s\u00e1t th\u1ea5y trong m\u1ed9t s\u1ed1 tri\u1ec3n khai c\u1eaft \u0111\u00f4i<\/li>\n<\/ul>\n

          H\u00e0nh vi h\u1ed3 quang c\u1eaft \u0111\u00f4i<\/h3>\n

          Trong MCCB c\u1eaft \u0111\u00f4i, hai h\u1ed3 quang h\u00ecnh th\u00e0nh n\u1ed1i ti\u1ebfp nhau tr\u00ean m\u1ed7i c\u1ef1c. T\u1ed5ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang x\u1ea5p x\u1ec9 t\u1ed5ng c\u1ee7a c\u1ea3 hai h\u1ed3 quang:<\/p>\n

          V_arc_total \u2248 V_arc_1 + V_arc_2<\/p>\n

          N\u1ebfu m\u1ed7i h\u1ed3 quang ph\u00e1t tri\u1ec3n 50V, t\u1ed5ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang \u0111\u1ea1t 100V\u2014g\u1ea5p \u0111\u00f4i so v\u1edbi thi\u1ebft k\u1ebf c\u1eaft \u0111\u01a1n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh bu\u1ed3ng t\u01b0\u01a1ng t\u1ef1. \u0110i\u1ec7n \u00e1p cao h\u01a1n n\u00e0y c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y di\/dt (t\u1ed1c \u0111\u1ed9 gi\u1ea3m d\u00f2ng) nhanh h\u01a1n, mang l\u1ea1i gi\u1edbi h\u1ea1n d\u00f2ng m\u1ea1nh h\u01a1n.<\/p>\n

          C\u00e2n nh\u1eafc v\u1ec1 hi\u1ec7u su\u1ea5t<\/strong>:<\/p>\n

            \n
          • \u0110i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n\u52a0\u901fgi\u1edbi h\u1ea1n d\u00f2ng, gi\u1ea3m d\u00f2ng \u0111\u1ec9nh \u0111i qua v\u00e0 n\u0103ng l\u01b0\u1ee3ng I\u00b2t<\/li>\n
          • Hai h\u1ed3 quang trong m\u1ed9t bu\u1ed3ng nh\u1ecf g\u1ecdn t\u1ea1o ra \u00e1p su\u1ea5t v\u00e0 s\u1ef1 bay h\u01a1i v\u1eadt li\u1ec7u cao h\u01a1n, \u0111\u00f2i h\u1ecfi v\u1eadt li\u1ec7u bu\u1ed3ng v\u00e0 th\u00f4ng gi\u00f3 m\u1ea1nh m\u1ebd<\/li>\n
          • \u1ede m\u1ee9c d\u00f2ng s\u1ef1 c\u1ed1 th\u1ea5p, m\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf c\u1eaft \u0111\u00f4i \u0111\u00e3 th\u1ec3 hi\u1ec7n s\u1ef1 \u0111\u00f3ng l\u1ea1i ti\u1ebfp \u0111i\u1ec3m trong qu\u00e1 tr\u00ecnh ng\u1eaft m\u1ea1ch, l\u00e0m t\u0103ng t\u1ea1m th\u1eddi n\u0103ng l\u01b0\u1ee3ng \u0111i qua (I\u00b2t v\u00e0 n\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang); h\u00e0nh vi n\u00e0y l\u00e0 \u0111\u1eb7c tr\u01b0ng thi\u1ebft k\u1ebf v\u00e0 kh\u00f4ng ph\u1ed5 bi\u1ebfn cho t\u1ea5t c\u1ea3 c\u00e1c MCCB c\u1eaft \u0111\u00f4i<\/li>\n
          • Thi\u1ebft k\u1ebf bu\u1ed3ng th\u00edch h\u1ee3p ph\u1ea3i qu\u1ea3n l\u00fd s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa hai h\u1ed3 quang \u0111\u1ec3 tr\u00e1nh s\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ed3 quang<\/li>\n<\/ul>\n

            \u0110\u00e1nh \u0111\u1ed5i thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang<\/h3>\n

            C\u1ea3 hai thi\u1ebft k\u1ebf \u0111\u1ec1u d\u1ef1a v\u00e0o bu\u1ed3ng d\u1eadp h\u1ed3 quang v\u1edbi c\u00e1c t\u1ea5m chia (c\u00f2n g\u1ecdi l\u00e0 t\u1ea5m kh\u1eed ion) \u0111\u1ec3 l\u00e0m m\u00e1t v\u00e0 d\u1eadp t\u1eaft h\u1ed3 quang. Bu\u1ed3ng chia h\u1ed3 quang th\u00e0nh nhi\u1ec1u h\u1ed3 quang nh\u1ecf h\u01a1n n\u1ed1i ti\u1ebfp nhau, l\u00e0m t\u0103ng t\u1ed5ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang.<\/p>\n

            Bu\u1ed3ng c\u1eaft \u0111\u01a1n<\/strong>: T\u1eadp trung v\u00e0o vi\u1ec7c t\u1ed1i \u0111a h\u00f3a s\u1ef1 t\u0103ng \u0111i\u1ec7n \u00e1p t\u1eeb m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn h\u1ed3 quang. Th\u01b0\u1eddng s\u1eed d\u1ee5ng 10-20 t\u1ea5m chia t\u00f9y thu\u1ed9c v\u00e0o \u0111i\u1ec7n \u00e1p v\u00e0 kh\u1ea3 n\u0103ng c\u1eaft. Th\u1ec3 t\u00edch bu\u1ed3ng v\u00e0 kho\u1ea3ng c\u00e1ch t\u1ea5m \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec3 l\u00e0m m\u00e1t h\u1ed3 quang \u0111\u01a1n.<\/p>\n

            Bu\u1ed3ng c\u1eaft \u0111\u00f4i<\/strong>: Ph\u1ea3i x\u1eed l\u00fd hai h\u1ed3 quang \u0111\u1ed3ng th\u1eddi. Trong c\u00e1c thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, n\u01a1i c\u1ea3 hai h\u1ed3 quang d\u00f9ng chung kh\u00f4ng gian bu\u1ed3ng, \u00e1p su\u1ea5t v\u00e0 s\u1ef1 \u0103n m\u00f2n cao h\u01a1n. M\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng c\u00e1c bu\u1ed3ng ri\u00eang bi\u1ec7t cho m\u1ed7i h\u1ed3 quang; nh\u1eefng ng\u01b0\u1eddi kh\u00e1c t\u1ed1i \u01b0u h\u00f3a m\u1ed9t bu\u1ed3ng chung \u0111\u1ec3 qu\u1ea3n l\u00fd hai h\u1ed3 quang.<\/p>\n

            Hi\u1ec7u qu\u1ea3 c\u1ee7a m\u1ed9t trong hai thi\u1ebft k\u1ebf ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng tri\u1ec3n khai\u2014v\u1eadt li\u1ec7u t\u1ea5m chia (th\u00e9p, \u0111\u1ed3ng, ph\u1ee7 g\u1ed1m), kho\u1ea3ng c\u00e1ch, c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng v\u00e0 th\u00f4ng gi\u00f3 bu\u1ed3ng. B\u1ea1n kh\u00f4ng th\u1ec3 kh\u00e1i qu\u00e1t r\u1eb1ng \u201cc\u1eaft \u0111\u00f4i lu\u00f4n t\u1ed1t h\u01a1n\u201d ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i; th\u1eed nghi\u1ec7m s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3 theo tr\u00ecnh t\u1ef1 IEC 60947-2 l\u00e0 ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady duy nh\u1ea5t.<\/p>\n

            \"Arc
            H\u00ecnh 2: Nguy\u00ean t\u1eafc ng\u1eaft h\u1ed3 quang. Tr\u00ean c\u00f9ng: MCCB c\u1eaft \u0111\u01a1n ph\u00e1t tri\u1ec3n m\u1ed9t h\u1ed3 quang (\u0111i\u1ec3n h\u00ecnh 30-100V) tr\u00ean c\u00e1c t\u1ea5m chia. D\u01b0\u1edbi c\u00f9ng: MCCB c\u1eaft \u0111\u00f4i t\u1ea1o ra hai h\u1ed3 quang n\u1ed1i ti\u1ebfp nhau (t\u1ed5ng 60-200V),\u52a0\u901fgi\u1ea3m d\u00f2ng th\u00f4ng qua \u0111i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n. C\u1ea3 hai \u0111\u1ec1u d\u1ef1a v\u00e0o thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang\u2014t\u1ea5m chia, t\u1eeb tr\u01b0\u1eddng v\u00e0 l\u00e0m m\u00e1t\u2014\u0111\u1ec3 d\u1eadp t\u1eaft h\u1ed3 quang t\u1ea1i \u0111i\u1ec3m c\u1eaft d\u00f2ng v\u1ec1 kh\u00f4ng.<\/figcaption><\/figure>\n

            Kh\u1ea3 n\u0103ng c\u1eaft v\u00e0 ti\u00eau chu\u1ea9n IEC 60947-2<\/h2>\n

            IEC 60947-2 l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t v\u00e0 quy tr\u00ecnh th\u1eed nghi\u1ec7m cho b\u1ed9 ng\u1eaft m\u1ea1ch h\u1ea1 th\u1ebf, bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c MCCB. Hi\u1ec3u c\u00e1ch ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng c\u1eaft gi\u00fap b\u1ea1n so s\u00e1nh c\u00e1c c\u00f4ng ngh\u1ec7 c\u1eaft \u0111\u01a1n v\u00e0 c\u1eaft \u0111\u00f4i m\u1ed9t c\u00e1ch kh\u00e1ch quan.<\/p>\n

            Icu: Kh\u1ea3 n\u0103ng c\u1eaft ng\u1eafn m\u1ea1ch t\u1edbi h\u1ea1n danh \u0111\u1ecbnh<\/h3>\n

            Icu<\/strong> \u0111\u1ea1i di\u1ec7n cho d\u00f2ng s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng t\u1ed1i \u0111a (t\u00ednh b\u1eb1ng kA) m\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 ng\u1eaft th\u00e0nh c\u00f4ng \u1edf \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh m\u00e0 kh\u00f4ng b\u1ecb ph\u00e1 h\u1ee7y. \u0110\u00f3 l\u00e0 gi\u1edbi h\u1ea1n tuy\u1ec7t \u0111\u1ed1i c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch\u2014\u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo IEC Sequence III (chu k\u1ef3 th\u1eed nghi\u1ec7m 1: O-t-CO).<\/p>\n

            Sau khi ng\u1eaft s\u1ef1 c\u1ed1 \u1edf m\u1ee9c Icu, b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p \u0111\u1ec3 ti\u1ebfp t\u1ee5c s\u1eed d\u1ee5ng. Ti\u00eau chu\u1ea9n y\u00eau c\u1ea7u x\u00e1c minh r\u1eb1ng thi\u1ebft b\u1ecb \u0111\u00e3 m\u1edf m\u1ea1ch th\u00e0nh c\u00f4ng v\u00e0 kh\u00f4ng b\u1eaft l\u1eeda ho\u1eb7c ph\u00e1t n\u1ed5, nh\u01b0ng kh\u00f4ng y\u00eau c\u1ea7u thi\u1ebft b\u1ecb v\u1eabn ho\u1ea1t \u0111\u1ed9ng sau \u0111\u00f3.<\/p>\n

            Quy t\u1eafc l\u1ef1a ch\u1ecdn<\/strong>: Lu\u00f4n ch\u1ec9 \u0111\u1ecbnh Icu \u2265 d\u00f2ng s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng t\u1ed1i \u0111a t\u1ea1i \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t. Gi\u1ea3m k\u00edch th\u01b0\u1edbc Icu t\u1ea1o ra m\u1ed9t m\u1ed1i nguy hi\u1ec3m an to\u00e0n th\u1ea3m kh\u1ed1c\u2014b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 h\u1ecfng h\u00f3c nghi\u00eam tr\u1ecdng trong qu\u00e1 tr\u00ecnh x\u1ea3y ra s\u1ef1 c\u1ed1.<\/p>\n

            Ics: Kh\u1ea3 n\u0103ng c\u1eaft ng\u1eafn m\u1ea1ch l\u00e0m vi\u1ec7c danh \u0111\u1ecbnh<\/h3>\n

            Ics<\/strong> \u0111\u1ea1i di\u1ec7n cho m\u1ee9c d\u00f2ng s\u1ef1 c\u1ed1 m\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 ng\u1eaft v\u00e0 v\u1eabn s\u1eb5n s\u00e0ng ho\u1ea1t \u0111\u1ed9ng<\/strong>. IEC Sequence II (chu k\u1ef3 th\u1eed nghi\u1ec7m 2: O-CO-CO) x\u00e1c minh \u0111i\u1ec1u n\u00e0y\u2014b\u1ed9 ng\u1eaft m\u1ea1ch ph\u1ea3i ng\u1eaft th\u00e0nh c\u00f4ng ba l\u1ea7n \u1edf m\u1ee9c Ics v\u00e0 v\u1eabn \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t (th\u1eed nghi\u1ec7m \u0111i\u1ec7n m\u00f4i, t\u0103ng nhi\u1ec7t \u0111\u1ed9, th\u1eed nghi\u1ec7m v\u1eadn h\u00e0nh).<\/p>\n

            IEC 60947-2 y\u00eau c\u1ea7u:<\/p>\n

              \n
            • Ics \u2265 25% c\u1ee7a Icu (t\u1ed1i thi\u1ec3u)<\/li>\n
            • Th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi ta nh\u1eafm \u0111\u1ebfn 50%, 75% ho\u1eb7c 100% c\u1ee7a Icu<\/li>\n
            • MCCB cao c\u1ea5p \u0111\u1ea1t Ics = Icu (100%), ngh\u0129a l\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch v\u1eabn ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c ngay c\u1ea3 sau khi ng\u1eaft d\u00f2ng s\u1ef1 c\u1ed1 \u0111\u1ecbnh m\u1ee9c t\u1ed1i \u0111a c\u1ee7a n\u00f3<\/li>\n<\/ul>\n

              T\u1ea1i sao Ics l\u1ea1i quan tr\u1ecdng<\/strong>: Trong c\u00e1c c\u00f4ng tr\u00ecnh quan tr\u1ecdng, n\u01a1i vi\u1ec7c kh\u00f4i ph\u1ee5c d\u1ecbch v\u1ee5 nhanh ch\u00f3ng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft (b\u1ec7nh vi\u1ec7n, trung t\u00e2m d\u1eef li\u1ec7u, quy tr\u00ecnh c\u00f4ng nghi\u1ec7p), h\u00e3y ch\u1ec9 \u0111\u1ecbnh Ics c\u00e0ng g\u1ea7n Icu c\u00e0ng t\u1ed1t. N\u1ebfu m\u1ee9c s\u1ef1 c\u1ed1 c\u1ee7a b\u1ea1n l\u00e0 40kA, th\u00ec b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ecbnh m\u1ee9c Icu = 50kA \/ Ics = 50kA (100%) \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb v\u1eabn ho\u1ea1t \u0111\u1ed9ng sau s\u1ef1 c\u1ed1 40kA. B\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ecbnh m\u1ee9c Icu = 50kA \/ Ics = 25kA (50%) c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i thay th\u1ebf sau c\u00f9ng m\u1ed9t s\u1ef1 ki\u1ec7n.<\/p>\n

              Thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn Icu\/Ics kh\u00f4ng?<\/h3>\n

              C\u1ea3 MCCB m\u1ed9t \u0111i\u1ec3m ng\u1eaft v\u00e0 hai \u0111i\u1ec3m ng\u1eaft \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c Icu v\u00e0 Ics cao\u2014ch\u1ec9 ri\u00eang c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m kh\u00f4ng x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng c\u1eaft. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 thi\u1ebft k\u1ebf c\u1ef1c ho\u00e0n ch\u1ec9nh:<\/p>\n

                \n
              • V\u1eadt li\u1ec7u v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng ti\u1ebfp \u0111i\u1ec3m (\u0111\u1ed3ng m\u1ea1 b\u1ea1c, h\u1ee3p kim vonfram-\u0111\u1ed3ng)<\/li>\n
              • Hi\u1ec7u qu\u1ea3 c\u1ee7a bu\u1ed3ng d\u1eadp h\u1ed3 quang (t\u1ea5m chia, t\u1eeb tr\u01b0\u1eddng, l\u00e0m m\u00e1t)<\/li>\n
              • \u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u1ee7a c\u1ee5m ti\u1ebfp \u0111i\u1ec3m v\u00e0 c\u01a1 c\u1ea5u v\u1eadn h\u00e0nh<\/li>\n
              • Qu\u1ea3n l\u00fd nhi\u1ec7t (t\u1ea3n nhi\u1ec7t, kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a v\u1eadt li\u1ec7u)<\/li>\n<\/ul>\n

                B\u1ea1n s\u1ebd t\u00ecm th\u1ea5y MCCB m\u1ed9t \u0111i\u1ec3m ng\u1eaft c\u00f3 \u0111\u1ecbnh m\u1ee9c 100kA Icu v\u00e0 MCCB hai \u0111i\u1ec3m ng\u1eaft c\u00f3 \u0111\u1ecbnh m\u1ee9c 50kA Icu, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. L\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf (m\u1ed9t so v\u1edbi hai \u0111i\u1ec3m ng\u1eaft) l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 trong s\u1ed1 nhi\u1ec1u y\u1ebfu t\u1ed1. Lu\u00f4n x\u00e1c minh c\u00e1c gi\u00e1 tr\u1ecb Icu v\u00e0 Ics do nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1\u2014\u0111\u00e2y l\u00e0 nh\u1eefng ch\u1ec9 s\u1ed1 \u0111\u00e1ng tin c\u1eady duy nh\u1ea5t v\u1ec1 hi\u1ec7u su\u1ea5t.<\/p>\n

                T\u00ednh ch\u1ecdn l\u1ecdc v\u00e0 ph\u1ed1i h\u1ee3p<\/h3>\n

                IEC 60947-2 s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef t\u00ednh ch\u1ecdn l\u1ecdc qu\u00e1 d\u00f2ng<\/strong> (tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 \u201cph\u00e2n bi\u1ec7t \u0111\u1ed1i x\u1eed\u201d) \u0111\u1ec3 m\u00f4 t\u1ea3 s\u1ef1 ph\u1ed1i h\u1ee3p gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 th\u01b0\u1ee3ng ngu\u1ed3n v\u00e0 h\u1ea1 ngu\u1ed3n. T\u00ednh ch\u1ecdn l\u1ecdc ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 b\u1ed9 ng\u1eaft m\u1ea1ch h\u1ea1 ngu\u1ed3n g\u1ea7n s\u1ef1 c\u1ed1 nh\u1ea5t m\u1edbi t\u00e1c \u0111\u1ed9ng, gi\u1eef cho c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch th\u01b0\u1ee3ng ngu\u1ed3n \u0111\u00f3ng \u0111\u1ec3 duy tr\u00ec d\u1ecbch v\u1ee5 cho c\u00e1c m\u1ea1ch kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n

                C\u1ea3 MCCB m\u1ed9t \u0111i\u1ec3m ng\u1eaft v\u00e0 hai \u0111i\u1ec3m ng\u1eaft \u0111\u1ec1u c\u00f3 th\u1ec3 cung c\u1ea5p t\u00ednh ch\u1ecdn l\u1ecdc khi \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p \u0111\u00fang c\u00e1ch. S\u1ef1 ph\u1ed1i h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1eb7c t\u00ednh \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n, c\u00e0i \u0111\u1eb7t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 (ng\u01b0\u1ee1ng nhi\u1ec7t v\u00e0 t\u1eeb) v\u00e0 hi\u1ec7u su\u1ea5t gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n c\u1ee7a m\u1ed7i thi\u1ebft b\u1ecb. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t cung c\u1ea5p b\u1ea3ng ch\u1ecdn l\u1ecdc cho bi\u1ebft nh\u1eefng t\u1ed5 h\u1ee3p b\u1ed9 ng\u1eaft m\u1ea1ch n\u00e0o \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u00ednh ch\u1ecdn l\u1ecdc ho\u00e0n to\u00e0n l\u00ean \u0111\u1ebfn c\u00e1c m\u1ee9c s\u1ef1 c\u1ed1 c\u1ee5 th\u1ec3.<\/p>\n

                Trong c\u00e1c c\u00f4ng tr\u00ecnh c\u00f3 d\u00f2ng s\u1ef1 c\u1ed1 cao, kh\u1ea3 n\u0103ng gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n m\u1ea1nh h\u01a1n c\u1ee7a MCCB hai \u0111i\u1ec3m ng\u1eaft \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ecdn l\u1ecdc b\u1eb1ng c\u00e1ch gi\u1ea3m d\u00f2ng \u0111i\u1ec7n th\u00f4ng v\u00e0 \u1ee9ng su\u1ea5t I\u00b2t tr\u00ean c\u00e1c thi\u1ebft b\u1ecb th\u01b0\u1ee3ng ngu\u1ed3n. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y l\u00e0 d\u00e0nh ri\u00eang cho s\u1ea3n ph\u1ea9m\u2014h\u00e3y x\u00e1c minh s\u1ef1 ph\u1ed1i h\u1ee3p b\u1eb1ng d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, kh\u00f4ng ph\u1ea3i c\u00e1c gi\u1ea3 \u0111\u1ecbnh chung v\u1ec1 thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m.<\/p>\n

                So s\u00e1nh hi\u1ec7u su\u1ea5t<\/h2>\n

                Ki\u1ec3m tra \u0111i\u1ec3m chu\u1ea9n v\u00e0 d\u1eef li\u1ec7u th\u1ef1c t\u1ebf cho th\u1ea5y MCCB m\u1ed9t \u0111i\u1ec3m ng\u1eaft v\u00e0 hai \u0111i\u1ec3m ng\u1eaft th\u1ec3 hi\u1ec7n c\u00e1c c\u1ea5u h\u00ecnh hi\u1ec7u su\u1ea5t kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o m\u1ee9c d\u00f2ng s\u1ef1 c\u1ed1, thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang v\u00e0 b\u1ed1i c\u1ea3nh \u1ee9ng d\u1ee5ng. Kh\u00f4ng c\u00f3 c\u00f4ng ngh\u1ec7 n\u00e0o v\u01b0\u1ee3t tr\u1ed9i h\u01a1n v\u1ec1 m\u1eb7t ph\u1ed5 qu\u00e1t\u2014m\u1ed7i c\u00f4ng ngh\u1ec7 \u0111\u1ec1u v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3.<\/p>\n

                Hi\u1ec7u su\u1ea5t d\u00f2ng s\u1ef1 c\u1ed1 cao (>20kA)<\/h3>\n

                \u1ede d\u00f2ng s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng cao, vi\u1ec7c gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n hi\u1ec7u qu\u1ea3 tr\u1edf n\u00ean quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb v\u00e0 c\u00e1p h\u1ea1 ngu\u1ed3n kh\u1ecfi \u1ee9ng su\u1ea5t nhi\u1ec7t v\u00e0 c\u01a1 h\u1ecdc qu\u00e1 m\u1ee9c.<\/p>\n

                \u01afu \u0111i\u1ec3m c\u1ee7a hai \u0111i\u1ec3m ng\u1eaft<\/strong>:<\/p>\n

                  \n
                • Hai h\u1ed3 quang n\u1ed1i ti\u1ebfp t\u1ea1o ra \u0111i\u1ec7n \u00e1p h\u1ed3 quang t\u1ed5ng cao h\u01a1n, \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh gi\u1ea3m d\u00f2ng \u0111i\u1ec7n<\/li>\n
                • di\/dt (t\u1ed1c \u0111\u1ed9 gi\u1ea3m d\u00f2ng \u0111i\u1ec7n) nhanh h\u01a1n l\u00e0m gi\u1ea3m d\u00f2ng \u0111i\u1ec7n th\u00f4ng c\u1ef1c \u0111\u1ea1i<\/li>\n
                • N\u0103ng l\u01b0\u1ee3ng I\u00b2t th\u1ea5p h\u01a1n \u0111\u01b0\u1ee3c cung c\u1ea5p cho c\u00e1c m\u1ea1ch h\u1ea1 ngu\u1ed3n l\u00e0m gi\u1ea3m \u1ee9ng su\u1ea5t nhi\u1ec7t tr\u00ean c\u00e1p v\u00e0 thanh c\u00e1i<\/li>\n
                • Gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n m\u1ea1nh h\u01a1n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ecdn l\u1ecdc v\u1edbi c\u00e1c thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n b\u1eb1ng c\u00e1ch gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 s\u1ef1 c\u1ed1<\/li>\n<\/ul>\n

                  Th\u00e1ch th\u1ee9c c\u1ee7a hai \u0111i\u1ec3m ng\u1eaft<\/strong>:<\/p>\n

                    \n
                  • \u00c1p su\u1ea5t bu\u1ed3ng d\u1eadp h\u1ed3 quang v\u00e0 s\u1ef1 bay h\u01a1i v\u1eadt li\u1ec7u cao h\u01a1n \u0111\u00f2i h\u1ecfi thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang v\u00e0 th\u00f4ng gi\u00f3 m\u1ea1nh m\u1ebd<\/li>\n
                  • Hai h\u1ed3 quang t\u01b0\u01a1ng t\u00e1c trong c\u00e1c bu\u1ed3ng d\u1eadp h\u1ed3 quang nh\u1ecf g\u1ecdn \u0111\u00f2i h\u1ecfi h\u00ecnh h\u1ecdc bu\u1ed3ng d\u1eadp h\u1ed3 quang ch\u00ednh x\u00e1c \u0111\u1ec3 tr\u00e1nh m\u1ea5t \u1ed5n \u0111\u1ecbnh<\/li>\n
                  • \u1ee8ng su\u1ea5t c\u01a1 h\u1ecdc l\u1edbn h\u01a1n tr\u00ean c\u1ee5m ti\u1ebfp \u0111i\u1ec3m v\u00e0 c\u01a1 c\u1ea5u v\u1eadn h\u00e0nh<\/li>\n<\/ul>\n

                    M\u1ed9t \u0111i\u1ec3m ng\u1eaft \u1edf m\u1ee9c d\u00f2ng s\u1ef1 c\u1ed1 cao<\/strong>: MCCB m\u1ed9t \u0111i\u1ec3m ng\u1eaft c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng c\u1eaft cao (80-100kA Icu) v\u1edbi c\u00e1c bu\u1ed3ng d\u1eadp h\u1ed3 quang \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a, nh\u01b0ng c\u00f3 th\u1ec3 cung c\u1ea5p d\u00f2ng \u0111i\u1ec7n th\u00f4ng v\u00e0 I\u00b2t cao h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi c\u00e1c thi\u1ebft k\u1ebf hai \u0111i\u1ec3m ng\u1eaft t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. S\u1ef1 kh\u00e1c bi\u1ec7t thu h\u1eb9p khi thi\u1ebft k\u1ebf bu\u1ed3ng d\u1eadp h\u1ed3 quang \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n\u2014MCCB m\u1ed9t \u0111i\u1ec3m ng\u1eaft hi\u1ec7n \u0111\u1ea1i v\u1edbi c\u00e1c m\u1ea3ng t\u1ea5m chia ti\u00ean ti\u1ebfn v\u00e0 th\u1ed5i t\u1eeb t\u00ednh ho\u1ea1t \u0111\u1ed9ng c\u1ea1nh tranh.<\/p>\n

                    Hi\u1ec7u su\u1ea5t d\u00f2ng s\u1ef1 c\u1ed1 th\u1ea5p \u0111\u1ebfn trung b\u00ecnh (5-20kA)<\/h3>\n

                    Trong ch\u1ebf \u0111\u1ed9 n\u00e0y, vi\u1ec7c gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n tuy\u1ec7t \u0111\u1ed1i \u00edt quan tr\u1ecdng h\u01a1n\u2014d\u00f2ng s\u1ef1 c\u1ed1 c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng c\u1ea7n \u0111i\u1ec7n \u00e1p h\u1ed3 quang c\u1ef1c cao. S\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 h\u00e0nh vi ng\u1eaft nh\u1ea5t qu\u00e1n quan tr\u1ecdng h\u01a1n.<\/p>\n

                    \u01afu \u0111i\u1ec3m c\u1ee7a m\u1ed9t \u0111i\u1ec3m ng\u1eaft<\/strong>:<\/p>\n

                      \n
                    • C\u01a1 ch\u1ebf ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1edbi \u00edt b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng h\u01a1n l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3y ra c\u00e1c v\u1ea5n \u0111\u1ec1 c\u01a1 h\u1ecdc<\/li>\n
                    • N\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang t\u1eadp trung trong m\u1ed9t bu\u1ed3ng d\u1eadp h\u1ed3 quang gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t<\/li>\n
                    • C\u00e1c th\u1eed nghi\u1ec7m \u0111i\u1ec3m chu\u1ea9n cho th\u1ea5y s\u1ef1 ng\u1eaft \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u00f3ng l\u1ea1i t\u1ea1m th\u1eddi trong ph\u1ea1m vi s\u1ef1 c\u1ed1 n\u00e0y<\/li>\n
                    • \u00c1p su\u1ea5t v\u00e0 x\u00f3i m\u00f2n bu\u1ed3ng d\u1eadp h\u1ed3 quang th\u1ea5p h\u01a1n c\u00f3 th\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd ti\u1ebfp \u0111i\u1ec3m<\/li>\n<\/ul>\n

                      Th\u00e1ch th\u1ee9c c\u1ee7a hai \u0111i\u1ec3m ng\u1eaft<\/strong>:<\/p>\n

                        \n
                      • M\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf hai \u0111i\u1ec3m ng\u1eaft \u0111\u00e3 th\u1ec3 hi\u1ec7n vi\u1ec7c \u0111\u00f3ng l\u1ea1i ti\u1ebfp \u0111i\u1ec3m trong qu\u00e1 tr\u00ecnh x\u1ea3y ra s\u1ef1 c\u1ed1 m\u1ee9c th\u1ea5p, l\u00e0m t\u0103ng t\u1ea1m th\u1eddi I\u00b2t v\u00e0 n\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang th\u00f4ng<\/li>\n
                      • H\u00e0nh vi n\u00e0y l\u00e0 d\u00e0nh ri\u00eang cho thi\u1ebft k\u1ebf (kh\u00f4ng ph\u1ed5 bi\u1ebfn cho t\u1ea5t c\u1ea3 MCCB hai \u0111i\u1ec3m ng\u1eaft) v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9ng l\u1ef1c h\u1ecdc ti\u1ebfp \u0111i\u1ec3m, l\u1ef1c c\u0103ng l\u00f2 xo v\u00e0 t\u01b0\u01a1ng t\u00e1c \u00e1p su\u1ea5t bu\u1ed3ng d\u1eadp h\u1ed3 quang<\/li>\n
                      • \u1ede d\u00f2ng s\u1ef1 c\u1ed1 th\u1ea5p h\u01a1n, l\u1ee3i th\u1ebf gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n c\u1ee7a hai \u0111i\u1ec3m ng\u1eaft gi\u1ea3m \u0111i\u2014\u0111i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n mang l\u1ea1i \u00edt l\u1ee3i \u00edch h\u01a1n khi d\u00f2ng s\u1ef1 c\u1ed1 \u0111\u00e3 \u1edf m\u1ee9c v\u1eeba ph\u1ea3i<\/li>\n<\/ul>\n

                        Hai \u0111i\u1ec3m ng\u1eaft \u1edf m\u1ee9c d\u00f2ng s\u1ef1 c\u1ed1 th\u1ea5p-trung b\u00ecnh<\/strong>: MCCB hai \u0111i\u1ec3m ng\u1eaft \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady tr\u00ean to\u00e0n b\u1ed9 ph\u1ea1m vi s\u1ef1 c\u1ed1. V\u1ea5n \u0111\u1ec1 \u0111\u00f3ng l\u1ea1i l\u00e0 m\u1ed9t sai s\u00f3t trong thi\u1ebft k\u1ebf, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u1ea1n ch\u1ebf v\u1ed1n c\u00f3 c\u1ee7a c\u00f4ng ngh\u1ec7. X\u00e1c minh d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m d\u00e0nh ri\u00eang cho s\u1ea3n ph\u1ea9m\u2014c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 uy t\u00edn c\u00f4ng b\u1ed1 \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111\u1eb7c t\u00ednh th\u00f4ng tr\u00ean to\u00e0n b\u1ed9 ph\u1ed5 s\u1ef1 c\u1ed1.<\/p>\n

                        \u0110\u1eb7c t\u00ednh gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n<\/h3>\n

                        MCCB gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n l\u00e0m gi\u1ea3m d\u00f2ng s\u1ef1 c\u1ed1 c\u1ef1c \u0111\u1ea1i xu\u1ed1ng d\u01b0\u1edbi d\u00f2ng s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng (c\u00f3 s\u1eb5n) b\u1eb1ng c\u00e1ch nhanh ch\u00f3ng t\u1ea1o ra \u0111i\u1ec7n \u00e1p h\u1ed3 quang. \u0110i\u1ec1u n\u00e0y b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n v\u00e0 c\u1ea3i thi\u1ec7n s\u1ef1 ph\u1ed1i h\u1ee3p.<\/p>\n\n\n\n\n\n\n\n\n\n
                        S\u1ed1 li\u1ec7u hi\u1ec7u su\u1ea5t<\/td>\nM\u1ed9t \u0111i\u1ec3m ng\u1eaft (\u0111i\u1ec3n h\u00ecnh)<\/td>\nHai \u0111i\u1ec3m ng\u1eaft (\u0111i\u1ec3n h\u00ecnh)<\/td>\n<\/tr>\n
                        \u0110i\u1ec7n \u00e1p h\u1ed3 quang tr\u00ean m\u1ed7i khe h\u1edf<\/td>\n30-100V (m\u1ed9t h\u1ed3 quang)<\/td>\n30-100V tr\u00ean m\u1ed7i h\u1ed3 quang (x2)<\/td>\n<\/tr>\n
                        T\u1ed5ng \u0111i\u1ec7n \u00e1p h\u1ed3 quang<\/td>\n30-100V<\/td>\n60-200V<\/td>\n<\/tr>\n
                        C\u01b0\u1eddng \u0111\u1ed9 gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n<\/td>\nV\u1eeba \u0111\u1ebfn cao<\/td>\nCao \u0111\u1ebfn r\u1ea5t cao<\/td>\n<\/tr>\n
                        I\u00b2t th\u00f4ng (s\u1ef1 c\u1ed1 cao)<\/td>\nV\u1eeba ph\u1ea3i<\/td>\nTh\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\n<\/tr>\n
                        \u1ed4n \u0111\u1ecbnh (s\u1ef1 c\u1ed1 th\u1ea5p)<\/td>\nCao (h\u00e0nh vi nh\u1ea5t qu\u00e1n)<\/td>\nThay \u0111\u1ed5i (t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf)<\/td>\n<\/tr>\n
                        D\u00f2ng \u0111i\u1ec7n th\u00f4ng \u0111\u1ec9nh<\/td>\n10-30kA (\u1edf m\u1ee9c 50kA c\u00f3 s\u1eb5n)<\/td>\n8-25kA (\u1edf m\u1ee9c 50kA c\u00f3 s\u1eb5n)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                        L\u01b0u \u00fd: C\u00e1c gi\u00e1 tr\u1ecb ch\u1ec9 mang t\u00ednh minh h\u1ecda. Hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3, k\u00edch th\u01b0\u1edbc khung v\u00e0 t\u1ed1i \u01b0u h\u00f3a bu\u1ed3ng d\u1eadp h\u1ed3 quang. Lu\u00f4n tham kh\u1ea3o d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/em><\/p>\n

                        \u0110\u1ed9 tin c\u1eady c\u01a1 h\u1ecdc v\u00e0 tu\u1ed5i th\u1ecd d\u1ecbch v\u1ee5<\/h3>\n

                        C\u1ea3 hai thi\u1ebft k\u1ebf \u0111\u1ec1u c\u00f3 tu\u1ed5i th\u1ecd cao khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch trong gi\u1edbi h\u1ea1n \u0111\u1ecbnh m\u1ee9c.<\/p>\n

                        Ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n (Single-break)<\/strong>: \u00cdt b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng h\u01a1n v\u00e0 c\u1ee5m ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n gi\u1ea3n h\u01a1n th\u01b0\u1eddng \u0111\u1ed3ng ngh\u0129a v\u1edbi \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u01a1 h\u1ecdc th\u1ea5p h\u01a1n. S\u1ef1 \u0103n m\u00f2n h\u1ed3 quang t\u1eadp trung trong m\u1ed9t bu\u1ed3ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n ti\u1ebfp \u0111i\u1ec3m trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 t\u1ea3i n\u1eb7ng (ng\u1eaft d\u00f2ng \u0111i\u1ec7n cao th\u01b0\u1eddng xuy\u00ean).<\/p>\n

                        Ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i (Double-break)<\/strong>: C\u01a1 ch\u1ebf ph\u1ee9c t\u1ea1p h\u01a1n v\u1edbi c\u00e1c giao di\u1ec7n ti\u1ebfp x\u00fac b\u1ed5 sung. N\u0103ng l\u01b0\u1ee3ng h\u1ed3 quang \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 tr\u00ean hai bu\u1ed3ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 \u0103n m\u00f2n tr\u00ean m\u1ed7i bu\u1ed3ng, nh\u01b0ng \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n trong c\u00e1c bu\u1ed3ng h\u1ed3 quang k\u00e9p nh\u1ecf g\u1ecdn c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp l\u1ee3i \u00edch n\u00e0y.<\/p>\n

                        Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec v\u00e0 tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng d\u1ef1 ki\u1ebfn ph\u1ee5 thu\u1ed9c nhi\u1ec1u h\u01a1n v\u00e0o chu k\u1ef3 l\u00e0m vi\u1ec7c, t\u1ea7n su\u1ea5t s\u1ef1 c\u1ed1 v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng h\u01a1n l\u00e0 v\u00e0o thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m. C\u00e1c th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc theo ti\u00eau chu\u1ea9n IEC 60947-2 (chu k\u1ef3 \u0111\u00f3ng-m\u1edf) \u00e1p d\u1ee5ng nh\u01b0 nhau cho c\u1ea3 hai c\u00f4ng ngh\u1ec7.<\/p>\n

                        C\u00e2n nh\u1eafc v\u1ec1 chi ph\u00ed v\u00e0 k\u00edch th\u01b0\u1edbc<\/h3>\n

                        C\u00e1c y\u1ebfu t\u1ed1 c\u1ee5 th\u1ec3 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t chi ph\u1ed1i chi ph\u00ed v\u00e0 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd. B\u1ea1n kh\u00f4ng th\u1ec3 k\u1ebft lu\u1eadn m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady r\u1eb1ng \u201cti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n r\u1ebb h\u01a1n\u201d ho\u1eb7c \u201cti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i nh\u1ecf g\u1ecdn h\u01a1n\u201d n\u1ebfu kh\u00f4ng so s\u00e1nh c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3.<\/p>\n

                        Nh\u1eadn x\u00e9t chung<\/strong>:<\/p>\n

                          \n
                        • C\u1ea3 hai thi\u1ebft k\u1ebf \u0111\u1ec1u c\u00f3 s\u1eb5n tr\u00ean to\u00e0n b\u1ed9 d\u1ea3i d\u00f2ng \u0111i\u1ec7n MCCB (16A \u0111\u1ebfn 1600A)<\/li>\n
                        • C\u00e1c t\u00ednh n\u0103ng cao c\u1ea5p (b\u1ed9 ng\u1eaft \u0111i\u1ec7n t\u1eed, giao ti\u1ebfp, Ics\/Icu cao) \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn chi ph\u00ed nhi\u1ec1u h\u01a1n l\u00e0 c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m<\/li>\n
                        • K\u00edch th\u01b0\u1edbc khung v\u00e0 kh\u1ea3 n\u0103ng c\u1eaft (Icu) x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd\u2014MCCB 630A \/ 85kA chi\u1ebfm kh\u00f4ng gian t\u01b0\u01a1ng t\u1ef1 nhau cho d\u00f9 l\u00e0 ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n hay ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i<\/li>\n<\/ul>\n

                          Khi so s\u00e1nh b\u00e1o gi\u00e1, h\u00e3y \u0111\u00e1nh gi\u00e1 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu: gi\u00e1 thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch, kh\u00f4ng gian b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, hi\u1ec7u su\u1ea5t ph\u1ed1i h\u1ee3p v\u00e0 tu\u1ed5i th\u1ecd d\u1ef1 ki\u1ebfn. Thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ee7a ph\u00e2n t\u00edch n\u00e0y, kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh.<\/p>\n

                          \"Performance
                          H\u00ecnh 3: So s\u00e1nh \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t tr\u00ean c\u00e1c s\u1ed1 li\u1ec7u ch\u00ednh. Thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i cung c\u1ea5p \u0111i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n m\u1ea1nh h\u01a1n \u1edf m\u1ee9c s\u1ef1 c\u1ed1 cao, nh\u01b0ng v\u1edbi \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a bu\u1ed3ng t\u0103ng l\u00ean. Thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n cung c\u1ea5p hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh tr\u00ean to\u00e0n d\u1ea3i s\u1ef1 c\u1ed1 v\u1edbi c\u01a1 ch\u1ebf \u0111\u01a1n gi\u1ea3n h\u01a1n. Hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf kh\u00e1c nhau t\u00f9y theo s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3 v\u00e0 thi\u1ebft k\u1ebf bu\u1ed3ng\u2014lu\u00f4n x\u00e1c minh d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/figcaption><\/figure>\n

                          Ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn: Khi n\u00e0o n\u00ean ch\u1ecdn t\u1eebng c\u00f4ng ngh\u1ec7<\/h2>\n

                          MCCB \u201ct\u1ed1t h\u01a1n\u201d l\u00e0 MCCB ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3, \u0111i\u1ec1u ki\u1ec7n s\u1ef1 c\u1ed1 v\u00e0 m\u1ee5c ti\u00eau b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n. S\u1eed d\u1ee5ng c\u00e1c ti\u00eau ch\u00ed n\u00e0y \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn quy\u1ebft \u0111\u1ecbnh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n.<\/p>\n

                          Ch\u1ecdn MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i khi:<\/h3>\n

                          1. M\u00f4i tr\u01b0\u1eddng d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 cao (>30kA)<\/strong><\/p>\n

                          N\u1ebfu nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch c\u1ee7a b\u1ea1n cho th\u1ea5y d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng tr\u00ean 30kA t\u1ea1i \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t, thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i v\u1edbi kh\u1ea3 n\u0103ng h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n m\u1ea1nh m\u1ebd mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch r\u00f5 r\u00e0ng:<\/p>\n

                            \n
                          • Gi\u1ea3m d\u00f2ng \u0111i\u1ec7n \u0111\u1ec9nh \u0111i qua gi\u00fap b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n kh\u1ecfi \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc<\/li>\n
                          • N\u0103ng l\u01b0\u1ee3ng I\u00b2t th\u1ea5p h\u01a1n l\u00e0m gi\u1ea3m \u1ee9ng su\u1ea5t nhi\u1ec7t tr\u00ean c\u00e1p, thanh c\u00e1i v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i<\/li>\n
                          • C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ed1i h\u1ee3p ch\u1ecdn l\u1ecdc v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch h\u1ea1 ngu\u1ed3n do gi\u1ea3m d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 hi\u1ec7u qu\u1ea3<\/li>\n<\/ul>\n

                            V\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng<\/strong>: MCCB \u0111\u1ea7u v\u00e0o ch\u00ednh t\u1ea1i th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p 1600kVA v\u1edbi d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n l\u00e0 55kA. MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i \u0111\u1ecbnh m\u1ee9c 800A \/ 65kA Icu v\u1edbi kh\u1ea3 n\u0103ng h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n m\u1ea1nh m\u1ebd s\u1ebd gi\u1ea3m \u1ee9ng su\u1ea5t tr\u00ean c\u00e1c \u0111\u01b0\u1eddng d\u00e2y h\u1ea1 ngu\u1ed3n v\u00e0 c\u1ea3i thi\u1ec7n s\u1ef1 ph\u1ed1i h\u1ee3p t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

                            2. B\u1ea3o v\u1ec7 th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p<\/strong><\/p>\n

                            M\u1ea1ch th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p tr\u1ea3i qua d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng cao (g\u1ea5p 8-12 l\u1ea7n d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c) v\u00e0 d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 kh\u1ea3 d\u1ee5ng cao. MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i v\u1edbi b\u1ed9 ng\u1eaft \u0111i\u1ec7n t\u1eed cung c\u1ea5p:<\/p>\n

                              \n
                            • C\u00e0i \u0111\u1eb7t ng\u1eaft c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh (Ir, Isd) \u0111\u1ec3 tr\u00e1nh ng\u1eaft do nhi\u1ec5u khi kh\u1edfi \u0111\u1ed9ng trong khi v\u1eabn duy tr\u00ec b\u1ea3o v\u1ec7 s\u1ef1 c\u1ed1<\/li>\n
                            • H\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n m\u1ea1nh m\u1ebd \u0111\u1ec3 b\u1ea3o v\u1ec7 cu\u1ed9n d\u00e2y m\u00e1y bi\u1ebfn \u00e1p v\u00e0 thanh c\u00e1i th\u1ee9 c\u1ea5p kh\u1ecfi \u1ee9ng su\u1ea5t s\u1ef1 c\u1ed1 cao<\/li>\n
                            • Kh\u1ea3 n\u0103ng ch\u1ecdn l\u1ecdc t\u1ed1t h\u01a1n v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch ph\u00e2n ph\u1ed1i h\u1ea1 ngu\u1ed3n<\/li>\n<\/ul>\n

                              3. C\u00e1c c\u00e0i \u0111\u1eb7t quan tr\u1ecdng y\u00eau c\u1ea7u h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a<\/strong><\/p>\n

                              C\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 vi\u1ec7c gi\u1ea3m thi\u1ec3u n\u0103ng l\u01b0\u1ee3ng s\u1ef1 c\u1ed1 l\u00e0 \u01b0u ti\u00ean:<\/p>\n

                                \n
                              • Trung t\u00e2m d\u1eef li\u1ec7u v\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m<\/li>\n
                              • B\u1ec7nh vi\u1ec7n c\u00f3 h\u1ec7 th\u1ed1ng h\u1ed7 tr\u1ee3 s\u1ef1 s\u1ed1ng quan tr\u1ecdng<\/li>\n
                              • C\u00e1c quy tr\u00ecnh c\u00f4ng nghi\u1ec7p v\u1edbi m\u00e1y m\u00f3c \u0111\u1eaft ti\u1ec1n nh\u1ea1y c\u1ea3m v\u1edbi s\u1ee5t \u00e1p<\/li>\n
                              • C\u00e1c t\u00f2a nh\u00e0 cao t\u1ea7ng c\u00f3 thanh d\u1eabn d\u1ecdc d\u00e0i<\/li>\n<\/ul>\n

                                4. Khi d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t x\u00e1c nh\u1eadn hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i<\/strong><\/p>\n

                                N\u1ebfu so s\u00e1nh c\u00e1c ki\u1ec3u MCCB c\u1ee5 th\u1ec3 v\u00e0 t\u00f9y ch\u1ecdn ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i ch\u1ee9ng minh kh\u1ea3 n\u0103ng h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n t\u1ed1t h\u01a1n, I\u00b2t th\u1ea5p h\u01a1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh tr\u00ean to\u00e0n d\u1ea3i s\u1ef1 c\u1ed1 trong c\u00e1c b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m IEC\u2014h\u00e3y ch\u1ecdn thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i.<\/p>\n

                                Ch\u1ecdn MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n khi:<\/h3>\n

                                1. C\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 th\u1ea5p \u0111\u1ebfn trung b\u00ecnh (10-30kA)<\/strong><\/p>\n

                                Trong c\u00e1c t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i, c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p nh\u1eb9 ho\u1eb7c \u0111\u01b0\u1eddng d\u00e2y nh\u00e1nh n\u01a1i d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 \u1edf m\u1ee9c v\u1eeba ph\u1ea3i, MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 \u0111\u00e1ng tin c\u1eady m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i:<\/p>\n

                                  \n
                                • C\u01a1 ch\u1ebf \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1edbi \u00edt b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng h\u01a1n l\u00e0m gi\u1ea3m c\u00e1c \u0111i\u1ec3m c\u00f3 kh\u1ea3 n\u0103ng h\u1ecfng h\u00f3c<\/li>\n
                                • Hi\u1ec7u su\u1ea5t ng\u1eaft \u1ed5n \u0111\u1ecbnh tr\u00ean to\u00e0n d\u1ea3i s\u1ef1 c\u1ed1<\/li>\n
                                • \u00c1p su\u1ea5t v\u00e0 x\u00f3i m\u00f2n bu\u1ed3ng th\u1ea5p h\u01a1n c\u00f3 th\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd<\/li>\n<\/ul>\n

                                  V\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng<\/strong>: \u0110\u01b0\u1eddng d\u00e2y c\u1ea5p ngu\u1ed3n ph\u1ee5 trong t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng \u0111\u1ecbnh m\u1ee9c 400A, v\u1edbi m\u1ee9c s\u1ef1 c\u1ed1 l\u00e0 25kA. MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n \u0111\u1ecbnh m\u1ee9c 400A \/ 36kA Icu cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 \u0111\u1ea7y \u0111\u1ee7, ph\u1ed1i h\u1ee3p \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u su\u1ea5t ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p>\n

                                  2. M\u1ea1ch b\u1ea3o v\u1ec7 v\u00e0 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1<\/strong><\/p>\n

                                  \u0110\u01b0\u1eddng d\u00e2y c\u1ea5p ngu\u1ed3n \u0111\u1ed9ng c\u01a1 th\u01b0\u1eddng th\u1ea5y d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 v\u1eeba ph\u1ea3i v\u00e0 c\u00e1c thao t\u00e1c chuy\u1ec3n m\u1ea1ch th\u01b0\u1eddng xuy\u00ean. MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n cung c\u1ea5p:<\/p>\n

                                    \n
                                  • Thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m m\u1ea1nh m\u1ebd cho c\u00e1c thao t\u00e1c c\u01a1 h\u1ecdc th\u01b0\u1eddng xuy\u00ean<\/li>\n
                                  • C\u00e0i \u0111\u1eb7t ng\u1eaft t\u1eeb c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh (Im) \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1<\/li>\n
                                  • B\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i \u0111\u00e1ng tin c\u1eady (Ir) m\u00e0 kh\u00f4ng h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1<\/li>\n<\/ul>\n

                                    3. C\u00e1c d\u1ef1 \u00e1n nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed m\u00e0 kh\u00f4ng c\u00f3 m\u1ee9c s\u1ef1 c\u1ed1 c\u1ef1c cao<\/strong><\/p>\n

                                    Khi c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 ng\u00e2n s\u00e1ch quan tr\u1ecdng v\u00e0 ch\u1ebf \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 kh\u00f4ng y\u00eau c\u1ea7u h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a, MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 tu\u00e2n th\u1ee7 theo quy \u0111\u1ecbnh v\u1edbi chi ph\u00ed c\u00f3 th\u1ec3 th\u1ea5p h\u01a1n. X\u00e1c minh r\u1eb1ng:<\/p>\n

                                      \n
                                    • Icu \u2265 d\u00f2ng ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn<\/li>\n
                                    • Ics ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 tin c\u1eady c\u1ee7a d\u1ecbch v\u1ee5 (khuy\u1ebfn ngh\u1ecb 75-100% Icu)<\/li>\n
                                    • Ph\u1ed1i h\u1ee3p \u0111\u01b0\u1ee3c x\u00e1c minh v\u1edbi c\u00e1c thi\u1ebft b\u1ecb th\u01b0\u1ee3ng ngu\u1ed3n\/h\u1ea1 ngu\u1ed3n<\/li>\n<\/ul>\n

                                      4. Khi hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 quan tr\u1ecdng<\/strong><\/p>\n

                                      N\u1ebfu c\u01a1 s\u1edf ho\u1eb7c t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n c\u00f3 kinh nghi\u1ec7m l\u00e2u d\u00e0i t\u00edch c\u1ef1c v\u1edbi c\u00e1c ki\u1ec3u MCCB ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n c\u1ee5 th\u1ec3\u2014\u0111\u1ed9 tin c\u1eady \u0111\u00e3 bi\u1ebft, hi\u1ec7u su\u1ea5t nh\u1ea5t qu\u00e1n, quy tr\u00ecnh b\u1ea3o tr\u00ec \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp\u2014c\u00f3 th\u1ec3 c\u00f3 nh\u1eefng l\u1ee3i th\u1ebf ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 duy tr\u00ec t\u00ednh li\u00ean t\u1ee5c c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n

                                      Ma tr\u1eadn quy\u1ebft \u0111\u1ecbnh<\/h3>\n
                                      \"Decision
                                      H\u00ecnh 4: Ma tr\u1eadn quy\u1ebft \u0111\u1ecbnh l\u1ef1a ch\u1ecdn MCCB. B\u1eaft \u0111\u1ea7u v\u1edbi ph\u00e2n t\u00edch d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 t\u1eeb nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch c\u1ee7a b\u1ea1n, h\u00e3y xem x\u00e9t lo\u1ea1i \u1ee9ng d\u1ee5ng v\u00e0 m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng, sau \u0111\u00f3 ch\u1ecdn c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m ph\u00f9 h\u1ee3p. C\u1ea3 hai c\u00f4ng ngh\u1ec7 \u0111\u1ec1u cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 \u0111\u00e1ng tin c\u1eady khi \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh \u0111\u00fang c\u00e1ch\u2014l\u1ef1a ch\u1ecdn ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c kh\u1edbp c\u00e1c \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t v\u1edbi c\u00e1c y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 c\u1ee7a c\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n.<\/figcaption><\/figure>\n

                                      C\u00e1c quy t\u1eafc l\u1ef1a ch\u1ecdn chung (\u00c1p d\u1ee5ng cho c\u1ea3 hai c\u00f4ng ngh\u1ec7)<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
                                      Y\u1ebfu T\u1ed1 L\u1ef1a Ch\u1ecdn<\/td>\n\u01afu ti\u00ean ti\u1ebfp \u0111i\u1ec3m \u0111\u01a1n<\/td>\n\u01afu ti\u00ean ti\u1ebfp \u0111i\u1ec3m \u0111\u00f4i<\/td>\n<\/tr>\n
                                      D\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng<\/strong><\/td>\n10-30kA<\/td>\n>30kA<\/td>\n<\/tr>\n
                                      \u1ee8ng D\u1ee5ng Lo\u1ea1i<\/strong><\/td>\n\u0110\u01b0\u1eddng d\u00e2y nh\u00e1nh, \u0111\u1ed9ng c\u01a1, \u0111\u01b0\u1eddng d\u00e2y c\u1ea5p ngu\u1ed3n ph\u1ee5<\/td>\n\u0110\u1ea7u v\u00e0o ch\u00ednh, th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p.<\/td>\n<\/tr>\n
                                      \u01afu ti\u00ean h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n<\/strong><\/td>\nV\u1eeba ph\u1ea3i (b\u1ea3o v\u1ec7 ti\u00eau chu\u1ea9n)<\/td>\nCao (gi\u1ea3m thi\u1ec3u I\u00b2t th\u00f4ng qua)<\/td>\n<\/tr>\n
                                      Y\u00eau c\u1ea7u v\u1ec1 t\u00ednh ch\u1ecdn l\u1ecdc<\/strong><\/td>\nPh\u1ed1i h\u1ee3p ti\u00eau chu\u1ea9n<\/td>\nT\u00ednh ch\u1ecdn l\u1ecdc ch\u1eb7t ch\u1ebd, h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n
                                      M\u00f4i Tr\u01b0\u1eddng L\u1eafp \u0110\u1eb7t<\/strong><\/td>\nTh\u01b0\u01a1ng m\u1ea1i, c\u00f4ng nghi\u1ec7p nh\u1eb9<\/td>\nC\u00f4ng nghi\u1ec7p n\u1eb7ng, trung t\u00e2m d\u1eef li\u1ec7u<\/td>\n<\/tr>\n
                                      R\u00e0ng bu\u1ed9c ng\u00e2n s\u00e1ch<\/strong><\/td>\nC\u00e1c d\u1ef1 \u00e1n nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed<\/td>\n\u01afu ti\u00ean hi\u1ec7u su\u1ea5t<\/td>\n<\/tr>\n
                                      \u0110\u01a1n gi\u1ea3n v\u1ec1 c\u01a1 kh\u00ed<\/strong><\/td>\n\u01afu ti\u00ean \u00edt b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng h\u01a1n<\/td>\nCh\u1ea5p nh\u1eadn s\u1ef1 ph\u1ee9c t\u1ea1p \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t cao<\/td>\n<\/tr>\n
                                      \u0110\u1ed9 tin c\u1eady d\u1ecbch v\u1ee5 (Ics)<\/strong><\/td>\nIcs = 50-75% Icu ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c<\/td>\nM\u1ee5c ti\u00eau Ics = 100% Icu<\/td>\n<\/tr>\n
                                      \u0110\u1ed9 nh\u1ea1y c\u1ee7a thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n<\/strong><\/td>\nC\u00e1p, t\u1ee7 \u0111i\u1ec7n ti\u00eau chu\u1ea9n<\/td>\nThi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m, t\u1ea3i quan tr\u1ecdng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                      B\u1ea5t k\u1ec3 c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m, m\u1ecdi l\u1ef1a ch\u1ecdn MCCB ph\u1ea3i \u0111\u00e1p \u1ee9ng:<\/p>\n

                                        \n
                                      1. Icu \u2265 D\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 ti\u1ec1m n\u0103ng t\u1ed1i \u0111a<\/strong>: Kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng. Th\u1ef1c hi\u1ec7n nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch v\u00e0 x\u00e1c minh \u0111\u1ecbnh m\u1ee9c Icu c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 m\u1ee9c s\u1ef1 c\u1ed1 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u1edf \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c.<\/li>\n
                                      2. Ics Ph\u00f9 h\u1ee3p v\u1edbi m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a \u1ee9ng d\u1ee5ng<\/strong>: \u0110\u1ed1i v\u1edbi c\u00e1c c\u00e0i \u0111\u1eb7t quan tr\u1ecdng (b\u1ec7nh vi\u1ec7n, trung t\u00e2m d\u1eef li\u1ec7u, quy tr\u00ecnh c\u00f4ng nghi\u1ec7p li\u00ean t\u1ee5c), h\u00e3y ch\u1ec9 \u0111\u1ecbnh Ics = 75-100% Icu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ed9 ng\u1eaft m\u1ea1ch v\u1eabn ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c sau khi ng\u1eaft s\u1ef1 c\u1ed1.<\/li>\n
                                      3. \u0110\u00e3 x\u00e1c minh ph\u1ed1i h\u1ee3p<\/strong>: S\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n v\u00e0 b\u1ea3ng ch\u1ecdn l\u1ecdc c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 x\u00e1c nh\u1eadn s\u1ef1 ph\u1ed1i h\u1ee3p th\u01b0\u1ee3ng ngu\u1ed3n\/h\u1ea1 ngu\u1ed3n. Kh\u00f4ng cho r\u1eb1ng c\u00f3 s\u1ef1 ph\u1ed1i h\u1ee3p d\u1ef1a tr\u00ean thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m\u2014h\u00e3y x\u00e1c minh b\u1eb1ng d\u1eef li\u1ec7u s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3.<\/li>\n
                                      4. Tu\u00e2n th\u1ee7 IEC 60947-2<\/strong>: X\u00e1c nh\u1eadn MCCB c\u00f3 d\u1ea5u IEC v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo tr\u00ecnh t\u1ef1 th\u1eed nghi\u1ec7m c\u1ee7a ti\u00eau chu\u1ea9n. Y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 th\u1eed nghi\u1ec7m n\u1ebfu ch\u1ec9 \u0111\u1ecbnh cho c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<\/li>\n
                                      5. Tham kh\u1ea3o H\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t<\/strong>: C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t MCCB l\u1edbn (Schneider, ABB, Siemens, Eaton, VIOX) xu\u1ea5t b\u1ea3n h\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng v\u00e0 s\u00e1ch tr\u1eafng so s\u00e1nh c\u00e1c s\u1ea3n ph\u1ea9m ng\u1eaft \u0111\u01a1n v\u00e0 ng\u1eaft \u0111\u00f4i c\u1ee7a h\u1ecd. S\u1eed d\u1ee5ng c\u00e1c t\u00e0i nguy\u00ean n\u00e0y\u2014ch\u00fang cung c\u1ea5p d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m v\u00e0 c\u00f4ng c\u1ee5 l\u1ef1a ch\u1ecdn d\u00e0nh ri\u00eang cho s\u1ea3n ph\u1ea9m.<\/li>\n<\/ol>\n

                                        Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng<\/h3>\n

                                        Kh\u00f4ng ch\u1ecdn MCCB ch\u1ec9 d\u1ef1a tr\u00ean c\u00e1c tuy\u00ean b\u1ed1 ti\u1ebfp th\u1ecb \u201cng\u1eaft \u0111\u01a1n so v\u1edbi ng\u1eaft \u0111\u00f4i\u201d. C\u1ea3 hai c\u00f4ng ngh\u1ec7 \u0111\u1ec1u \u0111\u00e3 ho\u00e0n thi\u1ec7n, \u0111\u00e1ng tin c\u1eady v\u00e0 \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i. L\u1ef1a ch\u1ecdn \u0111\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n

                                          \n
                                        • H\u1ed3 s\u01a1 d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 c\u1ee7a c\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n (k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch)<\/li>\n
                                        • Lo\u1ea1i \u1ee9ng d\u1ee5ng v\u00e0 m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng (ch\u00ednh so v\u1edbi nh\u00e1nh, quan tr\u1ecdng so v\u1edbi ti\u00eau chu\u1ea9n)<\/li>\n
                                        • Y\u00eau c\u1ea7u ph\u1ed1i h\u1ee3p (b\u1ea3ng ch\u1ecdn l\u1ecdc v\u00e0 ph\u00e2n t\u00edch th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n)<\/li>\n
                                        • D\u1eef li\u1ec7u th\u1eed nghi\u1ec7m c\u1ee5 th\u1ec3 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t (Icu, Ics, I\u00b2t th\u00f4ng qua, \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n)<\/li>\n<\/ul>\n

                                          B\u1eaft \u0111\u1ea7u v\u1edbi nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch, x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n, sau \u0111\u00f3 \u0111\u00e1nh gi\u00e1 c\u00e1c ki\u1ec3u MCCB c\u1ee5 th\u1ec3 (b\u1ea5t k\u1ec3 thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m) \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u \u0111\u00f3. C\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m l\u00e0 m\u1ed9t chi ti\u1ebft k\u1ef9 thu\u1eadt quan tr\u1ecdng\u2014nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh ch\u00ednh.<\/p>\n

                                          K\u1ebft lu\u1eadn<\/h2>\n

                                          C\u00e2u h\u1ecfi \u201cMCCB ng\u1eaft \u0111\u01a1n hay ng\u1eaft \u0111\u00f4i t\u1ed1t h\u01a1n?\u201d kh\u00f4ng c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi chung. C\u1ea3 hai c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m \u0111\u1ec1u tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n IEC 60947-2, cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 s\u1ef1 c\u1ed1 \u0111\u00e1ng tin c\u1eady v\u00e0 ph\u1ee5c v\u1ee5 hi\u1ec7u qu\u1ea3 c\u00e1c c\u1ea5u h\u00ecnh \u1ee9ng d\u1ee5ng ri\u00eang bi\u1ec7t.<\/p>\n

                                          MCCB ng\u1eaft \u0111\u00f4i v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng s\u1ef1 c\u1ed1 cao (>30kA), n\u01a1i gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n m\u1ea1nh l\u00e0m gi\u1ea3m \u1ee9ng su\u1ea5t cho thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n v\u00e0 c\u1ea3i thi\u1ec7n s\u1ef1 ph\u1ed1i h\u1ee3p h\u1ec7 th\u1ed1ng. \u0110i\u1ec7n \u00e1p h\u1ed3 quang cao h\u01a1n c\u1ee7a ch\u00fang gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 gi\u1ea3m d\u00f2ng \u0111i\u1ec7n, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111\u1ea7u v\u00e0o ch\u00ednh, th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p v\u00e0 c\u00e1c c\u00e0i \u0111\u1eb7t quan tr\u1ecdng, n\u01a1i vi\u1ec7c gi\u1ea3m thi\u1ec3u n\u0103ng l\u01b0\u1ee3ng th\u00f4ng qua l\u00e0 quan tr\u1ecdng.<\/p>\n

                                          MCCB ng\u1eaft \u0111\u01a1n cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 m\u1ea1nh m\u1ebd, ti\u1ebft ki\u1ec7m chi ph\u00ed cho c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 v\u1eeba ph\u1ea3i (10-30kA). C\u01a1 ch\u1ebf \u0111\u01a1n gi\u1ea3n h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t ng\u1eaft \u1ed5n \u0111\u1ecbnh tr\u00ean to\u00e0n d\u1ea3i s\u1ef1 c\u1ed1 khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 c\u1ea5p nh\u00e1nh, m\u1ea1ch \u0111\u1ed9ng c\u01a1 v\u00e0 c\u00e1c c\u00e0i \u0111\u1eb7t th\u01b0\u01a1ng m\u1ea1i, n\u01a1i kh\u00f4ng y\u00eau c\u1ea7u gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n c\u1ef1c cao.<\/p>\n

                                          L\u1ef1a ch\u1ecdn \u0111\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch, m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a \u1ee9ng d\u1ee5ng v\u00e0 y\u00eau c\u1ea7u ph\u1ed1i h\u1ee3p c\u1ee7a b\u1ea1n\u2014kh\u00f4ng ph\u1ea3i tr\u00ean c\u00e1c tuy\u00ean b\u1ed1 ti\u1ebfp th\u1ecb v\u1ec1 \u01b0u th\u1ebf c\u1ee7a thi\u1ebft k\u1ebf ti\u1ebfp \u0111i\u1ec3m. B\u1eaft \u0111\u1ea7u v\u1edbi ph\u00e2n t\u00edch d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1, x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1ee5c ti\u00eau b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n (Icu, Ics, gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n, t\u00ednh ch\u1ecdn l\u1ecdc), sau \u0111\u00f3 ch\u1ecdn MCCB \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u \u0111\u00f3 d\u1ef1a tr\u00ean d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n

                                          C\u1ea3 hai c\u00f4ng ngh\u1ec7 \u0111\u1ec1u \u0111\u00e3 ho\u00e0n thi\u1ec7n, \u0111\u01b0\u1ee3c ch\u1ee9ng minh tr\u00ean th\u1ef1c t\u1ebf v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c v\u1ee5 l\u00e2u d\u00e0i khi \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh \u0111\u00fang c\u00e1ch. T\u1eadp trung v\u00e0o vi\u1ec7c kh\u1edbp c\u00e1c \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch v\u1edbi nhu c\u1ea7u b\u1ea3o v\u1ec7 c\u1ee7a c\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n v\u00e0 b\u1ea1n s\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 \u0111i\u1ec7n \u0111\u00e1ng tin c\u1eady, tu\u00e2n th\u1ee7 theo quy \u0111\u1ecbnh b\u1ea5t k\u1ec3 c\u1ea5u h\u00ecnh ti\u1ebfp \u0111i\u1ec3m.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

                                          When specifying molded case circuit breakers (MCCBs) for industrial or commercial installations, you’ll encounter two fundamental contact design approaches: single-break and double-break configurations. The distinction isn’t merely technical jargon\u2014it affects how the breaker interrupts fault currents, influences breaking capacity ratings, and determines which applications each design serves best. Both technologies comply with IEC 60947-2 standards […]<\/p>\n","protected":false},"author":1,"featured_media":20602,"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-20601","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\/20601","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=20601"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20601\/revisions"}],"predecessor-version":[{"id":20603,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20601\/revisions\/20603"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/20602"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=20601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=20601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=20601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}