{"id":1420,"date":"2026-09-09T01:14:55","date_gmt":"2026-09-09T01:14:55","guid":{"rendered":"https:\/\/lanshanelectric.com\/?p=1420"},"modified":"2026-09-09T01:14:58","modified_gmt":"2026-09-09T01:14:58","slug":"chuc-nang-linh-kien-don-vi-chinh-cua-vong","status":"publish","type":"post","link":"https:\/\/lanshanelectric.com\/vi\/ring-main-unit-components-functions\/","title":{"rendered":"C\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01a1n v\u1ecb ch\u00ednh c\u1ee7a Ring: M\u1ed7i ph\u1ea7n th\u1ef1c s\u1ef1 l\u00e0m g\u00ec"},"content":{"rendered":"<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng l\u00e0 d\u1ec5 d\u00e0ng h\u01a1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh khi b\u1ea1n \u0111i theo \u0111\u01b0\u1eddng d\u1eabn hi\u1ec7n t\u1ea1i ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ebfm c\u00e1c ng\u0103n. thi\u1ebft b\u1ecb n\u00e0o mang d\u00f2ng \u0111i\u1ec7n v\u00f2ng?C\u00e1i n\u00e0o x\u00f3a l\u1ed7i m\u00e1y bi\u1ebfn \u00e1p?\u0110i\u1ec1u g\u00ec cho ng\u01b0\u1eddi v\u1eadn h\u00e0nh bi\u1ebft r\u1eb1ng m\u1ed9t l\u1ed7i \u0111\u00e3 \u0111i qua c\u00e1p?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 l\u00e0 nh\u1eefng ch\u1ee9c n\u0103ng kh\u00e1c nhau, ngay c\u1ea3 khi c\u00e1c thi\u1ebft b\u1ecb chia s\u1ebb m\u1ed9t bao v\u00e2y. h\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh th\u00f4ng qua nhi\u1ec7m v\u1ee5 \u0111i\u1ec7n c\u1ee7a h\u1ecd, sau \u0111\u00f3 cho th\u1ea5y c\u00e1ch h\u1ecd l\u00e0m vi\u1ec7c c\u00f9ng nhau trong m\u1ed9t k\u1ecbch b\u1ea3n ph\u00e2n ph\u1ed1i th\u1ef1c t.<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>M\u1ee5c l\u1ee5c<\/h2><nav><ul><li><a href=\"#what-does-a-ring-main-unit-do\">\u0110\u01a1n v\u1ecb ch\u00ednh c\u1ee7a v\u00f2ng l\u00e0m g\u00ec?<\/a><\/li><li><a href=\"#ring-main-unit-components-at-a-glance\">T\u1ed5ng quan v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a thi\u1ebft b\u1ecb ch\u00ednh<\/a><\/li><li><a href=\"#ring-switches-load-breaking-is-not-fault-clearing\">C\u00f4ng t\u1eafc v\u00f2ng: Ph\u00e1 v\u1ee1 t\u1ea3i kh\u00f4ng ph\u1ea3i l\u00e0 x\u00f3a l\u1ed7i<\/a><\/li><li><a href=\"#transformer-protection-switch-fuse-or-circuit-breaker\">B\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p: Switch-Fuse ho\u1eb7c Circuit Breaker?<\/a><\/li><li><a href=\"#busbars-and-insulation-the-current-path-inside\">Thanh c\u00e1i v\u00e0 c\u00e1ch \u0111i\u1ec7n: \u0110\u01b0\u1eddng d\u1eabn hi\u1ec7n t\u1ea1i b\u00ean trong<\/a><\/li><li><a href=\"#earthing-switches-and-interlocks-have-different-jobs\">C\u00f4ng t\u1eafc n\u1ed1i \u0111\u1ea5t v\u00e0 kh\u00f3a li\u00ean \u0111\u1ed9ng c\u00f3 c\u00f4ng vi\u1ec7c kh\u00e1c nhau<\/a><\/li><li><a href=\"#cable-compartments-where-installation-details-matter\">Ng\u0103n c\u00e1p: N\u01a1i chi ti\u1ebft l\u1eafp \u0111\u1eb7t quan tr\u1ecdng<\/a><\/li><li><a href=\"#c-ts-and-relays-follow-the-complete-trip-chain\">CT v\u00e0 R\u01a1le: Th\u1ef1c hi\u1ec7n theo Chu\u1ed7i chuy\u1ebfn \u0111i ho\u00e0n ch\u1ec9nh<\/a><\/li><li><a href=\"#voltage-indication-fault-indication-and-metering\">Ch\u1ec9 b\u00e1o \u0111i\u1ec7n \u00e1p, ch\u1ec9 b\u00e1o l\u1ed7i v\u00e0 \u0111o s\u00e1ng<\/a><\/li><li><a href=\"#operating-mechanisms-and-remote-control-options\">C\u01a1 ch\u1ebf v\u1eadn h\u00e0nh v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa<\/a><\/li><li><a href=\"#how-the-components-work-together-during-a-fault\">C\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau trong m\u1ed9t l\u1ed7i<\/a><\/li><li><a href=\"#match-the-rmu-configuration-to-the-project\">Kh\u1edbp C\u1ea5u h\u00ecnh RMU v\u1edbi D\u1ef1 \u00e1n<\/a><\/li><li><a href=\"#conclusion\">K\u1ebft lu\u1eadn<\/a><\/li><li><a href=\"#faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 id=\"what-does-a-ring-main-unit-do\" class=\"wp-block-heading\">\u0110\u01a1n v\u1ecb ch\u00ednh c\u1ee7a v\u00f2ng l\u00e0m g\u00ec?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1.jpg\" alt=\"HXGN15-12 B\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng trung th\u1ebf (RMU)\" class=\"wp-image-804\" srcset=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1.jpg 800w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1-300x300.jpg 300w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1-150x150.jpg 150w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1-768x768.jpg 768w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1-600x600.jpg 600w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/HXGN15-12-Medium-Voltage-1-100x100.jpg 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng, ho\u1eb7c RMU, l\u00e0 m\u1ed9t c\u1ee5m thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft trung \u00e1p nh\u1ecf g\u1ecdn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i, ph\u00e2n \u0111o\u1ea1n v\u00e0 b\u1ea3o v\u1ec7 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a m\u1ea1ng ph\u00e2n ph\u1ed1i. m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp quen thu\u1ed9c c\u00f3 hai k\u1ebft n\u1ed1i c\u00e1p v\u00f2ng v\u00e0 m\u1ed9t nh\u00e1nh bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, m\u1eb7c d\u00f9 c\u00e1c c\u1ea5u h\u00ecnh kh\u00e1c l\u00e0 c\u00f3 th.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00f2ng m\u00f4 t\u1ea3 s\u1ef1 s\u1eafp x\u1ebfp m\u1ea1ng, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t thanh c\u00e1i tr\u00f2n b\u00ean trong t\u1ee7. m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi m\u1ed9t \u0111i\u1ec3m th\u01b0\u1eddng m\u1edf, \u0111\u1ec3 l\u1ea1i m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn thay th\u1ebf c\u00f3 s\u1eb5n \u0111\u1ec3 ph\u1ee5c h\u1ed3i \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t sau khi m\u1ed9t l\u1ed7i. s\u1ef1 s\u1eafp x\u1ebfp n\u00e0y xu\u1ea5t hi\u1ec7n trong xu\u1ea5t b\u1ea3n&nbsp;<a href=\"https:\/\/commercial.nationalgrid.co.uk\/downloads-view-reciteme\/628374\" target=\"_blank\" rel=\"noopener\">h\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf m\u1ea1ng ph\u00e2n ph\u1ed1i<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng kh\u00f4ng t\u1ef1 \u0111\u1ed9ng cung c\u1ea5p ngu\u1ed3n cung c\u1ea5p kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n. ph\u1ee5c h\u1ed3i ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ea1ng, c\u00f4ng su\u1ea5t c\u00f3 s\u1eb5n, b\u1ea3o v\u1ec7 v\u00e0 s\u1eafp x\u1ebfp chuy\u1ec3n \u0111\u1ed5i. ch\u1ec9 \u0111\u1ecbnh nh\u1eefng k\u1ef3 v\u1ecdng \u0111\u00f3 t\u00e1ch bi\u1ec7t v\u1edbi ch\u00ednh t\u1ee7 \u0111.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 bi\u1ebft b\u1ed1i c\u1ea3nh thi\u1ebft b\u1ecb r\u1ed9ng h\u01a1n, h\u00e3y xem ph\u1ea7n gi\u1edbi thi\u1ec7u c\u1ee7a Lanshan v\u1ec1&nbsp;<a href=\"https:\/\/lanshanelectric.com\/vi\/thiet-bi-dong-cat-trung-the-la-gi-va-no-hoat-dong-nhu-the-nao\/\">l\u00e0m th\u1ebf n\u00e0o trung th\u1ebf switchgear ho\u1ea1t \u0111\u1ed9ng<\/a>.<\/p>\n\n\n\n<h2 id=\"ring-main-unit-components-at-a-glance\" class=\"wp-block-heading\">T\u1ed5ng quan v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a thi\u1ebft b\u1ecb ch\u00ednh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng ph\u00e2n t\u00e1ch c\u00e1c nhi\u1ec7m v\u1ee5 ch\u00ednh tr\u01b0\u1edbc khi ki\u1ec3m tra c\u00e1c chi ti\u1ebft. m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n l\u00e0 l\u1ef1a ch\u1ecdn thay th\u1ebf ho\u1eb7c l\u1ef1a ch\u1ecdn d\u1ef1 \u00e1n; kh\u00f4ng ph\u1ea3i m\u1ecdi \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng \u0111\u1ec1u ch\u1ee9a m\u1ecdi m\u1ee5c \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea. s\u1ef1 ph\u00e2n bi\u1ec7t chuy\u1ec3n \u0111\u1ed5i v\u00e0 b\u1ea3o v\u1ec7 tu\u00e2n theo c\u00e1c \u00e1p d\u1ee5ng&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/64656\" target=\"_blank\" rel=\"noopener\">chuy\u1ec3n \u0111\u1ed5i<\/a>,&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/63178\" target=\"_blank\" rel=\"noopener\">c\u1ea7u ch\u00ec chuy\u1ec3n m\u1ea1ch<\/a>&nbsp;v\u00e0&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/99635\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a>&nbsp;ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Th\u00e0nh ph\u1ea7n<\/th><th class=\"has-text-align-left\" data-align=\"left\">Ch\u1ee9c n\u0103ng ch\u00ednh<\/th><th class=\"has-text-align-left\" data-align=\"left\">Nh\u1eefng g\u00ec ng\u01b0\u1eddi mua n\u00ean x\u00e1c minh<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">C\u00f4ng t\u1eafc v\u00f2ng ho\u1eb7c ng\u1eaft k\u1ebft n\u1ed1i c\u00f4ng t\u1eafc<\/td><td class=\"has-text-align-left\" data-align=\"left\">Chuy\u1ec3n m\u1ea1ch v\u00f2ng trong ph\u1ea1m vi nhi\u1ec7m v\u1ee5 \u0111\u1ecbnh m\u1ee9c c\u1ee7a n\u00f3<\/td><td class=\"has-text-align-left\" data-align=\"left\">Kh\u1ea3 n\u0103ng ph\u00e1 v\u1ee1 t\u1ea3i, ch\u1ebf t\u1ea1o v\u00e0 c\u00e1ch ly<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 bi\u1ebfn \u00e1p<\/td><td class=\"has-text-align-left\" data-align=\"left\">X\u00f3a c\u00e1c l\u1ed7i quy \u0111\u1ecbnh tr\u00ean b\u1ed9 c\u1ea5p li\u1ec7u m\u00e1y bi\u1ebfn \u00e1p<\/td><td class=\"has-text-align-left\" data-align=\"left\">S\u01a1 \u0111\u1ed3 k\u1ebft h\u1ee3p c\u1ea7u ch\u00ec chuy\u1ec3n m\u1ea1ch ho\u1eb7c c\u1ea7u dao \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Thanh c\u00e1i<\/td><td class=\"has-text-align-left\" data-align=\"left\">K\u1ebft n\u1ed1i c\u00e1c \u0111\u01a1n v\u1ecb ch\u1ee9c n\u0103ng b\u1eb1ng \u0111i\u1ec7n<\/td><td class=\"has-text-align-left\" data-align=\"left\">X\u1ebfp h\u1ea1ng hi\u1ec7n t\u1ea1i v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c ng\u1eafn m\u1ea1ch<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">C\u00f4ng t\u1eafc n\u1ed1i \u0111\u1ea5t<\/td><td class=\"has-text-align-left\" data-align=\"left\">K\u1ebft n\u1ed1i m\u1ed9t ph\u1ea7n m\u1ea1ch \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u1edbi tr\u00e1i \u0111\u1ea5t<\/td><td class=\"has-text-align-left\" data-align=\"left\">V\u1ecb tr\u00ed n\u1ed1i \u0111\u1ea5t, x\u1ebfp h\u1ea1ng v\u00e0 l\u1ed3ng v\u00e0o nhau<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Ch\u1ea5m d\u1ee9t c\u00e1p<\/td><td class=\"has-text-align-left\" data-align=\"left\">K\u1ebft n\u1ed1i c\u00e1p b\u00ean ngo\u00e0i v\u1edbi m\u1ea1ch s\u01a1 c\u1ea5p<\/td><td class=\"has-text-align-left\" data-align=\"left\">Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u00e1p v\u00e0 giao di\u1ec7n<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">M\u00e1y bi\u1ebfn d\u00f2ng ho\u1eb7c c\u1ea3m bi\u1ebfn<\/td><td class=\"has-text-align-left\" data-align=\"left\">Cung c\u1ea5p t\u00edn hi\u1ec7u \u0111\u1ec3 b\u1ea3o v\u1ec7 ho\u1eb7c \u0111o l\u01b0\u1eddng<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u0110\u1ea7u ra, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch r\u01a1le<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">R\u01a1le b\u1ea3o v<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u0110\u00e1nh gi\u00e1 c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111i\u1ec7n v\u00e0 \u0111\u01b0a ra l\u1ec7nh chuy\u1ebfn \u0111i<\/td><td class=\"has-text-align-left\" data-align=\"left\">Ch\u1ee9c n\u0103ng, c\u00e0i \u0111\u1eb7t v\u00e0 cung c\u1ea5p v\u1ea5p ng\u00e3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">H\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n \u0111i\u1ec7n \u00e1p<\/td><td class=\"has-text-align-left\" data-align=\"left\">Cho bi\u1ebft t\u00ecnh tr\u1ea1ng \u0111i\u1ec7n \u00e1p t\u1ea1i \u0111i\u1ec3m k\u1ebft n\u1ed1i c\u1ee7a n\u00f3<\/td><td class=\"has-text-align-left\" data-align=\"left\">Lo\u1ea1i h\u1ec7 th\u1ed1ng v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c ph\u00e9p<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Ch\u1ec9 b\u00e1o \u0111\u01b0\u1eddng \u0111i b\u1ecb l\u1ed7i<\/td><td class=\"has-text-align-left\" data-align=\"left\">Cho bi\u1ebft d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n \u0111\u00e3 v\u01b0\u1ee3t qua \u0111i\u1ec3m c\u1ea3m bi\u1ebfn c\u1ee7a n\u00f3<\/td><td class=\"has-text-align-left\" data-align=\"left\">H\u00e0nh vi ph\u00e1t hi\u1ec7n, \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1eb7t l\u1ea1i<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 ph\u1ee5 tr\u1ee3<\/td><td class=\"has-text-align-left\" data-align=\"left\">K\u00edch ho\u1ea1t thi\u1ebft b\u1ecb v\u00e0 cung c\u1ea5p giao di\u1ec7n tr\u1ea1ng th\u00e1i ho\u1eb7c \u0111i\u1ec1u khi\u1ec3n<\/td><td class=\"has-text-align-left\" data-align=\"left\">Ph\u1ea1m vi \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng tay, c\u01a1 gi\u1edbi v\u00e0 t\u1eeb xa<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng \u0111i\u1ec1u n\u00e0y nh\u01b0 m\u1ed9t danh s\u00e1ch ki\u1ec3m tra ch\u1ee9c n\u0103ng, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u00f3a \u0111\u01a1n ph\u1ed5 qu\u00e1t c\u1ee7a v\u1eadt li\u1ec7u.C\u00e1c ph\u1ea7n d\u01b0\u1edbi \u0111\u00e2y gi\u1ea3i th\u00edch c\u00e1c gi\u1edbi h\u1ea1n \u0111\u1eb1ng sau m\u1ed7i m\u00f4 t.<\/p>\n\n\n\n<h3 id=\"describe-the-circuit-arrangement-not-just-the-number-of-ways\" class=\"wp-block-heading\">M\u00f4 t\u1ea3 s\u1ef1 s\u1eafp x\u1ebfp m\u1ea1ch, kh\u00f4ng ch\u1ec9 s\u1ed1 l\u01b0\u1ee3ng c\u00e1ch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t d\u1ef1 \u00e1n c\u1ea7n hai k\u1ebft n\u1ed1i v\u00f2ng v\u00e0 m\u1ed9t nh\u00e1nh bi\u1ebfn \u00e1p, h\u00e3y vi\u1ebft c\u00e1c ch\u1ee9c n\u0103ng \u0111\u00f3 m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng.M\u1ed9t y\u00eau c\u1ea7u cho m\u1ed9t \u201cRMU ba chi\u1ec1u\u201dv\u1eabn n\u00ean bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb theo t\u1eebng c\u00e1ch.N\u00eau r\u00f5 li\u1ec7u b\u1ea5t k\u1ef3 ch\u1ee9c n\u0103ng \u0111o s\u00e1ng \u0111\u01b0\u1ee3c tr\u00edch d\u1eabn n\u00e0o chi\u1ebfm m\u1ed9t m\u00f4-\u0111un b\u1ed5 sung hay \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o m\u1ed9t \u0111\u01a1n v\u1ecb kh\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u0169ng x\u00e1c \u0111\u1ecbnh b\u1ed5 sung d\u1ef1 ki\u1ebfn trong t\u01b0\u01a1ng lai. m\u1ed9t feeder kh\u00f4ng s\u1eed d\u1ee5ng, m\u1ed9t v\u1ecb tr\u00ed b\u1ea3ng tr\u1ed1ng v\u00e0 m\u1ed9t giao di\u1ec7n bus m\u1edf r\u1ed9ng l\u00e0 nh\u1eefng \u0111\u1ec1 xu\u1ea5t kh\u00e1c nhau. h\u1ecfi m\u1edf r\u1ed9ng n\u00e0o \u0111\u01b0\u1ee3c bao g\u1ed3m, nh\u1eefng thi\u1ebft b\u1ecb n\u00f3 s\u1ebd y\u00eau c\u1ea7u v\u00e0 nh\u1eefng b\u1ed9 ph\u1eadn s\u1ebd c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u01b0a ra kh\u1ecfi d\u1ecbch v\u1ee5. \u0111i\u1ec1u n\u00e0y l\u00e0m cho l\u1ecbch tr\u00ecnh th\u00e0nh ph\u1ea7n h\u1eefu \u00edch ngo\u00e0i c\u00e0i \u0111\u1eb7t \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n<h2 id=\"ring-switches-load-breaking-is-not-fault-clearing\" class=\"wp-block-heading\">C\u00f4ng t\u1eafc v\u00f2ng: Ph\u00e1 v\u1ee1 t\u1ea3i kh\u00f4ng ph\u1ea3i l\u00e0 x\u00f3a l\u1ed7i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 c\u1ea5p v\u00f2ng th\u01b0\u1eddng s\u1eed d\u1ee5ng b\u1ed9 ng\u1eaft k\u1ebft n\u1ed1i chuy\u1ec3n m\u1ea1ch. nhi\u1ec7m v\u1ee5 chuy\u1ec3n m\u1ea1ch c\u1ee7a ch\u00fang bao g\u1ed3m l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u00f2ng t\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh; ch\u1ee9c n\u0103ng ng\u1eaft k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang cung c\u1ea5p m\u1ed9t \u0111i\u1ec1u ki\u1ec7n c\u00e1ch ly \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh. m\u1ed9t b\u1ed9 ng\u1eaft k\u1ebft n\u1ed1i \u0111\u01a1n gi\u1ea3n kh\u00f4ng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t c\u00f4ng t\u1eafc ng\u1eaft t\u1ea3i.&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/64656\" target=\"_blank\" rel=\"noopener\">IEC 62271-103<\/a>&nbsp;gi\u1ea3i quy\u1ebft c\u00e1c nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i, trong khi&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/75708\" target=\"_blank\" rel=\"noopener\">IEC 62271-102<\/a>&nbsp;\u0111\u1ecba ch\u1ec9 ng\u1eaft k\u1ebft n\u1ed1i v\u00e0 c\u00f4ng t\u1eafc n\u1ed1i \u0111\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng, ph\u00e2n bi\u1ec7t li\u00ean t\u1ee5c hi\u1ec7n t\u1ea1i, ng\u1eafn m\u1ea1ch l\u00e0m cho hi\u1ec7n t\u1ea1i v\u00e0 ng\u1eafn th\u1eddi gian ch\u1ecbu \u0111\u01b0\u1ee3c hi\u1ec7n t\u1ea1i.L\u00e0m cho m\u1ed9t m\u1ea1ch v\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n l\u1ed7i c\u1ee7a n\u00f3 hi\u1ec7n t\u1ea1i l\u00e0 kh\u1ea3 n\u0103ng kh\u00e1c nhau.M\u1ed9t l\u00e0m cho ho\u1eb7c ch\u1ecbu \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 kh\u00f4ng th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e1 v\u1ee1 ng\u1eafn m\u1ea1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5: m\u1ed9t \u0111\u1ec1 ngh\u1ecb ch\u1ec9 n\u00eau r\u00f5 \u201c630 M\u1ed9t c\u00f4ng t\u1eafc v\u00f2ng\u201d \u0111\u1ec3 l\u1ea1i c\u00e1c nhi\u1ec7m v\u1ee5 l\u1ed7i ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft. h\u1ecfi nh\u1eefng g\u00ec x\u00f3a m\u1ed9t l\u1ed7i tr\u00ean m\u1ea1ch \u0111\u00f3 v\u00e0 y\u00eau c\u1ea7u x\u1ebfp h\u1ea1ng thi\u1ebft b\u1ecb c\u00f3 li\u00ean quan. gi\u00e1 tr\u1ecb hi\u1ec7n t\u1ea1i minh h\u1ecda kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt cho m\u1ed7i RMU.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y ng\u0103n ng\u1eeba m\u1ed9t l\u1ed7i mua s\u1eafm ph\u1ed5 bi\u1ebfn: coi m\u1ecdi thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch tr\u00ean s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng nh\u01b0 m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch.<\/p>\n\n\n\n<h2 id=\"transformer-protection-switch-fuse-or-circuit-breaker\" class=\"wp-block-heading\">B\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p: Switch-Fuse ho\u1eb7c Circuit Breaker?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00e1nh bi\u1ebfn \u00e1p c\u1ee7a m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng c\u1ea7n m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp b\u1ea3o v\u1ec7 x\u00e1c \u0111\u1ecbnh.Hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp l\u00e0 m\u1ed9t s\u1ef1 k\u1ebft h\u1ee3p ph\u1ed1i h\u1ee3p switch-c\u1ea7u ch\u00ec v\u00e0 m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh b\u1edfi m\u1ed9t s\u01a1 \u0111\u1ed3 b\u1ea3o v\u1ec7.Ch\u00fang l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn thay th\u1ebf \u0111\u1ec3 \u0111\u00e1nh gi\u00e1, kh\u00f4ng ph\u1ea3i nh\u00e3n c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau.<\/p>\n\n\n\n<h3 id=\"switch-fuse-combinations\" class=\"wp-block-heading\">K\u1ebft h\u1ee3p c\u1ea7u ch\u00ec chuy\u1ec3n m\u1ea1ch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5 h\u1ee3p c\u1ea7u ch\u00ec chuy\u1ec3n m\u1ea1ch k\u1ebft h\u1ee3p c\u00e1c ch\u1ee9c n\u0103ng chuy\u1ec3n m\u1ea1ch v\u1edbi c\u1ea7u ch\u00ec gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n.&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/63178\" target=\"_blank\" rel=\"noopener\">IEC 62271-105<\/a>&nbsp;x\u1eed l\u00fd s\u1ef1 k\u1ebft h\u1ee3p nh\u01b0 m\u1ed9t l\u1eafp r\u00e1p ch\u1ee9c n\u0103ng v\u1edbi kh\u1ea3 n\u0103ng l\u00e0m v\u00e0 ph\u00e1 v\u1ee1 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh. \u0111\u00e1nh gi\u00e1 s\u1ef1 k\u1ebft h\u1ee3p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t ch\u1ee9 kh\u00f4ng ph\u1ea3i ch\u1ecdn c\u1ea7u ch\u00ec ch\u1ec9 v\u00ec n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi gi\u1eef.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ea7u ch\u00ec \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p v\u00e0 c\u01a1 s\u1edf ph\u1ed1i h\u1ee3p. n\u01a1i c\u00e1c ti\u1ec1n \u0111\u1ea1o c\u1ea7u ch\u00ec v\u1eadn h\u00e0nh c\u00f4ng t\u1eafc, x\u00e1c nh\u1eadn r\u1eb1ng s\u1ef1 s\u1eafp x\u1ebfp trong t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t. kh\u00f4ng gi\u1ea3 s\u1eed b\u1ea5t k\u1ef3 c\u1ea7u ch\u00ec n\u00e0o c\u00f3 c\u00f9ng d\u00f2ng \u0111i\u1ec7n danh ngh\u0129a l\u00e0 m\u1ed9t s\u1ef1 thay th\u1ebf ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h3 id=\"circuit-breakers-and-relays\" class=\"wp-block-heading\">B\u1ed9 ng\u1eaft m\u1ea1ch v\u00e0 r\u01a1le<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 ph\u1eadn ch\u00ednh v\u00f2ng d\u1ef1a tr\u00ean c\u1ea7u dao s\u1eed d\u1ee5ng m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng ng\u1eaft \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi m\u1ea1ch ng\u1eaft v\u00e0 b\u1ea3o v\u1ec7 c\u1ea7n thi\u1ebft.&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/99635\" target=\"_blank\" rel=\"noopener\">IEC 62271-100<\/a>&nbsp;bao g\u1ed3m c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch AC v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m ph\u00e1 v\u1ee1 ch\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So s\u00e1nh c\u00e1c ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 m\u00e0 d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u, kh\u00f4ng ch\u1ec9 l\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a r\u01a1le. x\u00e1c \u0111\u1ecbnh nhi\u1ec7m v\u1ee5 c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p, d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 c\u00f3 s\u1eb5n v\u00e0 ph\u1ed1i h\u1ee3p v\u1edbi b\u1ea3o v\u1ec7 ng\u01b0\u1ee3c d\u00f2ng v\u00e0 h\u1ea1 l\u01b0u tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t \u0111\u1ec1 \u00e1n.<\/p>\n\n\n\n<h2 id=\"busbars-and-insulation-the-current-path-inside\" class=\"wp-block-heading\">Thanh c\u00e1i v\u00e0 c\u00e1ch \u0111i\u1ec7n: \u0110\u01b0\u1eddng d\u1eabn hi\u1ec7n t\u1ea1i b\u00ean trong<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/High-voltage-switchgear.jpg\" alt=\"\u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng\" class=\"wp-image-831\" srcset=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/High-voltage-switchgear.jpg 800w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/High-voltage-switchgear-300x200.jpg 300w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/High-voltage-switchgear-768x512.jpg 768w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/High-voltage-switchgear-600x400.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Busbar cung c\u1ea5p k\u1ebft n\u1ed1i \u0111i\u1ec7n chung gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb ch\u1ee9c n\u0103ng.Trong m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng, \u0111\u00e1nh gi\u00e1 c\u1ee7a h\u1ecd ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t ri\u00eang bi\u1ec7t v\u1edbi \u0111\u00e1nh gi\u00e1 nh\u00e1nh bi\u1ebfn \u00e1p; hai kh\u00f4ng c\u1ea7n ph\u1ea3i gi\u1ed1ng h\u1ec7t nhau.C\u00f4ng b&nbsp;<a href=\"https:\/\/commercial.nationalgrid.co.uk\/downloads-view-reciteme\/605463\" target=\"_blank\" rel=\"noopener\">L\u1ecbch tr\u00ecnh thi\u1ebft b\u1ecb RMU<\/a>&nbsp;minh h\u1ecda cho s\u1ef1 ph\u00e2n bi\u1ec7t \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi mua s\u1eafm, y\u00eau c\u1ea7u \u0111\u00e1nh gi\u00e1 thanh c\u00e1i li\u00ean t\u1ee5c-hi\u1ec7n t\u1ea1i, th\u1eddi gian ng\u1eafn ch\u1ecbu \u0111\u01b0\u1ee3c hi\u1ec7n t\u1ea1i v\u00e0 th\u1eddi gian c\u1ee7a n\u00f3. x\u00e1c nh\u1eadn gi\u00e1 tr\u1ecb n\u00e0o \u00e1p d\u1ee5ng cho s\u1ef1 s\u1eafp x\u1ebfp \u0111\u01b0\u1ee3c cung c\u1ea5p ho\u00e0n ch\u1ec9nh v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u00e0i \u0111\u1eb7t c\u1ee7a n\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u0169ng t\u00e1ch h\u1ec7 th\u1ed1ng c\u00e1ch \u0111i\u1ec7n kh\u1ecfi c\u00f4ng ngh\u1ec7 gi\u00e1n \u0111o\u1ea1n.M\u1ed9t m\u00f4 t\u1ea3 nh\u01b0 \u201cb\u1ed9 ng\u1eaft m\u1ea1ch ch\u00e2n kh\u00f4ng\u201d kh\u00f4ng, t\u1ef1 n\u00f3, x\u00e1c \u0111\u1ecbnh c\u00e1ch \u0111i\u1ec7n xung quanh c\u00e1c thanh c\u00e1i v\u00e0 giao di\u1ec7n c\u00e1p. ch\u1ec9 \u0111\u1ecbnh c\u1ea3 hai \u0111\u1eb7c \u0111i\u1ec3m thay v\u00ec c\u1ed1 g\u1eafng suy ra c\u00e1i n\u00e0y t\u1eeb c\u00e1i kia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u1ec1 xu\u1ea5t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng \u0111\u1ea7y kh\u00ed, h\u00e3y h\u1ecfi nh\u1eefng \u0111i\u1ec1u kho\u1ea3n gi\u00e1m s\u00e1t v\u00e0 gi\u1ea3m \u00e1p l\u1ef1c n\u00e0o \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. kh\u00f4ng gi\u1ea3 \u0111\u1ecbnh m\u1ed9t h\u1ec7 th\u1ed1ng kh\u00ed, m\u1ed9t lo\u1ea1i kh\u00ed c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t y\u00eau c\u1ea7u m\u00f4i tr\u01b0\u1eddng t\u1eeb t\u00ean RMU m\u1ed9t m\u00ecnh.<\/p>\n\n\n\n<h2 id=\"earthing-switches-and-interlocks-have-different-jobs\" class=\"wp-block-heading\">C\u00f4ng t\u1eafc n\u1ed1i \u0111\u1ea5t v\u00e0 kh\u00f3a li\u00ean \u0111\u1ed9ng c\u00f3 c\u00f4ng vi\u1ec7c kh\u00e1c nhau<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u00f4ng t\u1eafc n\u1ed1i \u0111\u1ea5t k\u1ebft n\u1ed1i m\u1ed9t ph\u1ea7n x\u00e1c \u0111\u1ecbnh c\u1ee7a m\u1ea1ch v\u1edbi tr\u00e1i \u0111\u1ea5t. kh\u00f3a li\u00ean \u0111\u1ed9ng h\u1ea1n ch\u1ebf c\u00e1c v\u1ecb tr\u00ed thi\u1ebft b\u1ecb kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n truy c\u1eadp.C\u00e1c ch\u1ee9c n\u0103ng n\u00e0y h\u1ed7 tr\u1ee3 m\u1ed9t s\u1eafp x\u1ebfp ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf; ch\u00fang kh\u00f4ng thay th\u1ebf cho m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c an to\u00e0n \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi b\u1ea3n v\u1ebd \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng, x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t: ph\u00eda c\u00e1p, ph\u1ea7n m\u1ea1ch kh\u00e1c ho\u1eb7c k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh ri\u00eang. y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p gi\u1ea3i th\u00edch c\u1eeda v\u00e0 c\u01a1 ch\u1ebf n\u00e0o \u0111\u01b0\u1ee3c kh\u00f3a li\u00ean \u0111\u1ed9ng v\u00e0 c\u00e1c ch\u1ec9 b\u00e1o v\u1ecb tr\u00ed \u0111\u1ea1i di\u1ec7n cho.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t thi\u1ebft b\u1ecb ba v\u1ecb tr\u00ed c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p c\u00e1c v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, c\u00e1ch ly v\u00e0 n\u1ed1i \u0111\u1ea5t, nh\u01b0ng s\u1ef1 s\u1eafp x\u1ebfp ch\u00ednh x\u00e1c ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecdc t\u1eeb t\u00e0i li\u1ec7u c\u1ee7a n\u00f3. kh\u00f4ng cho r\u1eb1ng m\u1ed9t b\u1ed9 ng\u1eaft m\u1edf m\u1ed9t m\u00ecnh cung c\u1ea5p s\u1ef1 c\u00e1ch ly c\u1ea7n thi\u1ebft cho c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ec9 nh\u1eefng nh\u00e2n vi\u00ean c\u00f3 tr\u00ecnh \u0111\u1ed9, \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n m\u1edbi \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh ho\u1eb7c ti\u1ebfp c\u1eadn thi\u1ebft b\u1ecb trung th\u1ebf theo c\u00e1c quy \u0111\u1ecbnh hi\u1ec7n h\u00e0nh.&nbsp;<a href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.333\" target=\"_blank\" rel=\"noopener\">Y\u00eau c\u1ea7u th\u1ef1c h\u00e0nh c\u00f4ng vi\u1ec7c \u0111i\u1ec7n c\u1ee7a OSHA<\/a>&nbsp;minh h\u1ecda s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u1ec9 b\u00e1o v\u1eadn h\u00e0nh v\u00e0 qu\u00e1 tr\u00ecnh kh\u1eed n\u0103ng l\u01b0\u1ee3ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh; c\u00e1c y\u00eau c\u1ea7u li\u00ean quan c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng chi ph\u1ed1i.<\/p>\n\n\n\n<h2 id=\"cable-compartments-where-installation-details-matter\" class=\"wp-block-heading\">Ng\u0103n c\u00e1p: N\u01a1i chi ti\u1ebft l\u1eafp \u0111\u1eb7t quan tr\u1ecdng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u0103n c\u00e1p k\u1ebft n\u1ed1i \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng v\u1edbi m\u1ea1ng th\u1ef1c t\u1ebf. t\u00ednh h\u1eefu d\u1ee5ng c\u1ee7a n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 s\u1eafp x\u1ebfp ch\u1ea5m d\u1ee9t, kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 c\u1eeda m\u1edf thu\u1eadn ti\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cung c\u1ea5p l\u1edbp \u0111i\u1ec7n \u00e1p c\u00e1p, k\u00edch th\u01b0\u1edbc d\u00e2y d\u1eabn v\u00e0 v\u1eadt li\u1ec7u, s\u1eafp x\u1ebfp l\u00f5i v\u00e0 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i.Y\u00eau c\u1ea7u b\u1ea3n v\u1ebd giao di\u1ec7n, chi ti\u1ebft ch\u1ea5m d\u1ee9t t\u01b0\u01a1ng th\u00edch, s\u1eafp x\u1ebfp h\u1ed7 tr\u1ee3 v\u00e0 kh\u00f4ng gian u\u1ed1n c\u1ea7n thi\u1ebft.Bao g\u1ed3m c\u00e1c k\u1ebft n\u1ed1i n\u1ed1i \u0111\u1ea5t m\u00e0n h\u00ecnh v\u00e0 b\u1ea5t k\u1ef3 ph\u1ee5 ki\u1ec7n b\u1ea3o v\u1ec7 t\u0103ng quy \u0111\u1ecbnh trong \u0111\u00e1nh gi\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng cung c\u1ea5p ri\u00eang bi\u1ec7t t\u1eeb c\u00e1p c\u1ee7a n\u00f3, giao tr\u00e1ch nhi\u1ec7m l\u1ef1a ch\u1ecdn v\u00e0 cung c\u1ea5p c\u00e1c b\u1ed9 d\u1ee5ng c\u1ee5 ch\u1ea5m d\u1ee9t. gi\u1eef giao di\u1ec7n switchgear v\u00e0 l\u1ef1a ch\u1ecdn c\u00e1p-ph\u1ee5 ki\u1ec7n ph\u1ed1i h\u1ee3p. gi\u1ea3i quy\u1ebft s\u1ef1 s\u1eafp x\u1ebfp ch\u1ea5m d\u1ee9t cho m\u1ed7i feeder ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec1u tr\u1ecb c\u00e1c t\u1ea5m \u0111\u00e1nh gi\u00e1 ch\u00ednh nh\u01b0 m\u1ed9t b\u1ea3n v\u1ebd k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t t\u1ee7 nh\u1ecf g\u1ecdn kh\u00f4ng t\u1ef1 \u0111\u1ed9ng ph\u00f9 h\u1ee3p v\u1edbi r\u00e3nh c\u00e1p b\u1ecb h\u1ea1n ch\u1ebf. gi\u1ea3i quy\u1ebft c\u00e1ch ti\u1ebfp c\u1eadn c\u00e1p v\u00e0 kh\u00f4ng gian k\u1ebft n\u1ed1i tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t n\u1ec1n t\u1ea3ng ho\u1eb7c \u0111\u1eb7t h\u00e0ng ph\u1ee5 ki\u1ec7n.<\/p>\n\n\n\n<h2 id=\"c-ts-and-relays-follow-the-complete-trip-chain\" class=\"wp-block-heading\">CT v\u00e0 R\u01a1le: Th\u1ef1c hi\u1ec7n theo Chu\u1ed7i chuy\u1ebfn \u0111i ho\u00e0n ch\u1ec9nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1y bi\u1ebfn d\u00f2ng, hay CT, cung c\u1ea5p t\u00edn hi\u1ec7u \u0111\u1ec3 \u0111o l\u01b0\u1eddng v\u00e0 b\u1ea3o v.&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/6050\" target=\"_blank\" rel=\"noopener\">IEC 61869-2<\/a>&nbsp;bao g\u1ed3m CT c\u1ea3m \u1ee9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 \u0111o l\u01b0\u1eddng v\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7. c\u00e1c c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn kh\u00e1c y\u00eau c\u1ea7u \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt \u00e1p d\u1ee5ng ri\u00eang c\u1ee7a ch\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng c\u1ea7u dao, h\u00e3y l\u00e0m theo chu\u1ed7i ho\u00e0n ch\u1ec9nh: \u0111o d\u00f2ng \u0111i\u1ec7n, quy\u1ebft \u0111\u1ecbnh r\u01a1le, \u0111\u1ea7u ra chuy\u1ebfn \u0111i, c\u01a1 ch\u1ebf chuy\u1ebfn \u0111i v\u00e0 ng\u1eaft ng\u1eaft c\u1ea7u dao. m\u1ed9t r\u01a1le ph\u00f9 h\u1ee3p kh\u00f4ng th\u1ec3 b\u00f9 \u0111\u1eafp cho m\u1ed9t c\u1ea3m bi\u1ebfn kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c m\u1ed9t ngu\u1ed3n cung c\u1ea5p v\u1ea5p kh\u00f4ng x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n\n<h3 id=\"check-more-than-the-ct-ratio\" class=\"wp-block-heading\">Ki\u1ec3m tra nhi\u1ec1u h\u01a1n t\u1ef7 l\u1ec7 CT<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi CT b\u1ea3o v\u1ec7 th\u00f4ng th\u01b0\u1eddng, h\u00e3y xem x\u00e9t c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c, g\u00e1nh n\u1eb7ng v\u00e0 hi\u1ec7u su\u1ea5t d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1. C\u00e1c&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/32278\" target=\"_blank\" rel=\"noopener\">H\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng IEC cho CT b\u1ea3o v<\/a>&nbsp;c\u1ee5 th\u1ec3 gi\u1ea3i quy\u1ebft h\u00e0nh vi c\u1ee7a h\u1ecd trong \u0111i\u1ec1u ki\u1ec7n ng\u1eafn m\u1ea1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c nh\u1eadn t\u00edn hi\u1ec7u mong \u0111\u1ee3i b\u1edfi r\u01a1le v\u00e0 ng\u01b0\u1eddi cung c\u1ea5p h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n, c\u00e0i \u0111\u1eb7t v\u00e0 h\u1ed3 s\u01a1 ki\u1ec3m tra.\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng s\u1eed d\u1ee5ng b\u1ea3o v\u1ec7 t\u1ef1 c\u1ea5p ngu\u1ed3n, y\u00eau c\u1ea7u c\u00e1c gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c ghi l\u1ea1i v\u00e0 s\u1eafp x\u1ebfp v\u1ea5p ng\u00e3; kh\u00f4ng cho r\u1eb1ng m\u1ecdi ch\u1ee9c n\u0103ng r\u01a1le v\u1eabn c\u00f3 s\u1eb5n m\u00e0 kh\u00f4ng c\u00f3 ngu\u1ed3n \u0111i\u1ec7n ph\u1ee5 tr.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u h\u1ecfi ch\u1ea5p nh\u1eadn th\u1ef1c t\u1ebf l\u00e0 li\u1ec7u h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn v\u00e0 ng\u1eaft \u0111\u01b0\u1ee3c cung c\u1ea5p c\u00f3 th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 \u0111\u00e3 th\u1ecfa thu\u1eadn nh\u01b0 m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp ph\u1ed1i h\u1ee3p hay kh\u00f4ng.<\/p>\n\n\n\n<h2 id=\"voltage-indication-fault-indication-and-metering\" class=\"wp-block-heading\">Ch\u1ec9 b\u00e1o \u0111i\u1ec7n \u00e1p, ch\u1ec9 b\u00e1o l\u1ed7i v\u00e0 \u0111o s\u00e1ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ch\u1ee9c n\u0103ng n\u00e0y tr\u1ea3 l\u1eddi c\u00e1c c\u00e2u h\u1ecfi kh\u00e1c nhau. x\u1eed l\u00fd ch\u00fang nh\u01b0 m\u1ed9t \u201ch\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t\u201d chung chung \u0111\u1ec3 l\u1ea1i c\u00e1c y\u00eau c\u1ea7u quan tr\u1ecdng ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft.<\/p>\n\n\n\n<h3 id=\"voltage-detecting-and-indicating-systems\" class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n v\u00e0 ch\u1ec9 b\u00e1o \u0111i\u1ec7n \u00e1p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/27638\" target=\"_blank\" rel=\"noopener\">IEC 62271-213<\/a>&nbsp;bao g\u1ed3m c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n v\u00e0 ch\u1ec9 b\u00e1o \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n \u00e1p cao th\u00f4ng qua h\u1ec7 th\u1ed1ng kh\u1edbp n\u1ed1i. ch\u1ec9 b\u00e1o li\u00ean quan \u0111\u1ebfn \u0111i\u1ec3m k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t; n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ee9ng ch\u1ec9 cho th\u1ea5y to\u00e0n b\u1ed9 b\u1ed9 ph\u1eadn ch\u00ednh c\u1ee7a v\u00f2ng l\u00e0 an to\u00e0n \u0111\u1ec3 ch\u1ea1m v\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ec9 \u0111\u1ecbnh lo\u1ea1i h\u1ec7 th\u1ed1ng v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c ph\u00e9p c\u1ee7a n\u00f3. m\u1ed9t ch\u1ec9 d\u1eabn t\u1ed1i m\u1ed9t m\u00ecnh kh\u00f4ng \u0111\u01b0\u1ee3c thay th\u1ebf ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t c\u1ee7a vi\u1ec7c thi\u1ebft l\u1eadp m\u1ed9t \u0111i\u1ec1u ki\u1ec7n an to\u00e0n.<\/p>\n\n\n\n<h3 id=\"fault-passage-indicators\" class=\"wp-block-heading\">Ch\u1ec9 b\u00e1o \u0111\u01b0\u1eddng \u0111i b\u1ecb l\u1ed7i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ec9 b\u00e1o \u0111\u01b0\u1eddng \u0111i c\u1ee7a l\u1ed7i cung c\u1ea5p th\u00f4ng tin v\u1ec1 d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 \u0111i qua v\u1ecb tr\u00ed c\u1ea3m bi\u1ebfn c\u1ee7a n\u00f3; n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 thi\u1ebft b\u1ecb l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u00f2ng \u0111i\u1ec7n \u0111\u00f3.&nbsp;<a href=\"https:\/\/standards.ieee.org\/ieee\/495\/11293\/\" target=\"_blank\" rel=\"noopener\">IEEE 495<\/a>&nbsp;gi\u1ea3i quy\u1ebft vi\u1ec7c ki\u1ec3m tra c\u00e1c ch\u1ec9 b\u00e1o m\u1ea1ch b\u1ecb l\u1ed7i cho h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ecfi xem ch\u1ec9 b\u00e1o h\u01b0\u1edbng c\u00f3 c\u1ea7n thi\u1ebft hay kh\u00f4ng v\u00e0 ch\u1ec9 b\u00e1o \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i ho\u1eb7c \u0111\u1eb7t l\u1ea1i nh\u01b0 th\u1ebf n\u00e0o. x\u00e1c \u0111\u1ecbnh m\u1ea1ch \u0111\u01a1n v\u1ecb ch\u00ednh c\u1ee7a v\u00f2ng n\u00e0o \u0111\u01b0\u1ee3c theo d\u00f5i thay v\u00ec gi\u1ea3 s\u1eed m\u1ed9t ch\u1ec9 b\u00e1o bao g\u1ed3m m\u1ecdi nh\u00e1nh.<\/p>\n\n\n\n<h3 id=\"metering-equipment\" class=\"wp-block-heading\">Thi\u1ebft b\u1ecb \u0111o s\u00e1ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110o s\u00e1ng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u CT chuy\u00ean d\u1ee5ng v\u00e0 m\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n \u00e1p v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1eb7c t\u00ednh \u0111\u1ea7u ra \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t.&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/6051\" target=\"_blank\" rel=\"noopener\">IEC 61869-3<\/a>&nbsp;bao g\u1ed3m c\u00e1c m\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n \u00e1p c\u1ea3m \u1ee9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o l\u01b0\u1eddng v\u00e0 b\u1ea3o v\u1ec7. m\u1ed9t ch\u1ec9 b\u00e1o \u0111i\u1ec7n \u00e1p hi\u1ec7n di\u1ec7n kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t s\u1ef1 thay th\u1ebf cho s\u1ef1 s\u1eafp x\u1ebfp \u0111o s\u00e1ng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh.<\/p>\n\n\n\n<h2 id=\"operating-mechanisms-and-remote-control-options\" class=\"wp-block-heading\">C\u01a1 ch\u1ebf v\u1eadn h\u00e0nh v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng di chuy\u1ec3n thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch ch\u00ednh. ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1, \u0111\u1ecba ch\u1ec9 li\u00ean l\u1ea1c ph\u1ee5 tr\u1ee3 v\u00e0 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n l\u1ec7nh t\u1eeb xa l\u00e0 c\u00e1c \u0111i\u1ec1u kho\u1ea3n ri\u00eang bi\u1ec7t \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh; t\u00e0i li\u1ec7u mua s\u1eafm ti\u1ec7n \u00edch li\u1ec7t k\u00ea c\u00e1c giao di\u1ec7n n\u00e0y m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa, x\u00e1c \u0111\u1ecbnh ngu\u1ed3n cung c\u1ea5p thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng, l\u1ef1a ch\u1ecdn \u0111\u1ecba ph\u01b0\u01a1ng\/t\u1eeb xa, ph\u1ea3n h\u1ed3i v\u1ecb tr\u00ed v\u00e0 ph\u1ea3n h\u1ed3i \u0111\u1ed1i v\u1edbi vi\u1ec7c m\u1ea5t \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n. tr\u1ea1ng th\u00e1i m\u00e0 c\u00e1c l\u1ec7nh ph\u1ea3i b\u1ecb ch\u1eb7n trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng c\u01a1 gi\u1edbi kh\u00f4ng t\u1ef1 \u0111\u1ed9ng l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng ph\u1ee5c h\u1ed3i t\u1ef1 tr\u1ecb. b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, th\u00f4ng tin li\u00ean l\u1ea1c, logic ho\u1ea1t \u0111\u1ed9ng v\u00e0 quy\u1ec1n m\u1ea1ng c\u1ea7n ph\u1ea1m vi ri\u00eang c\u1ee7a h.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed3ng \u00fd tr\u00ecnh di\u1ec5n ch\u1ee9c n\u0103ng tr\u01b0\u1edbc khi ch\u1ea5p nh\u1eadn: l\u1ec7nh ban h\u00e0nh, h\u00e0nh \u0111\u1ed9ng cho ph\u00e9p ho\u00e0n th\u00e0nh, v\u1ecb tr\u00ed ch\u00ednh x\u00e1c tr\u1edf l\u1ea1i, v\u00e0 h\u00e0nh \u0111\u1ed9ng b\u1ecb c\u1ea5m b\u1ecb ch\u1eb7n. ghi l\u1ea1i ng\u01b0\u1eddi x\u00e1c minh giao di\u1ec7n b\u1ed9 \u0111i\u1ec1u khi\u1ec3n b\u00ean ngo\u00e0i t\u1ea1i trang web ch\u1ee9 kh\u00f4ng ph\u1ea3i gi\u1ea3 \u0111\u1ecbnh h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n nh\u00e0 m\u00e1y ho\u00e0n th\u00e0nh vi\u1ec7c t\u00edch h\u1ee3p.<\/p>\n\n\n\n<h2 id=\"how-the-components-work-together-during-a-fault\" class=\"wp-block-heading\">C\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau trong m\u1ed9t l\u1ed7i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y xem x\u00e9t m\u1ed9t khu c\u00f4ng nghi\u1ec7p gi\u1ea3 \u0111\u1ecbnh v\u1edbi m\u1ed9t s\u1ed1 tr\u1ea1m bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i d\u1ecdc theo m\u1ea1ng v\u00f2ng m\u1edf.M\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng c\u00f3 hai b\u1ed9 c\u1ea5p v\u00f2ng v\u00e0 m\u1ed9t nh\u00e1nh bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7.\u0110\u00e2y l\u00e0 m\u1ed9t l\u1eddi gi\u1ea3i th\u00edch v\u1ec1 vai tr\u00f2 th\u00e0nh ph\u1ea7n, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u00e1p v\u00f2ng ph\u00e1t sinh l\u1ed7i, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ng\u01b0\u1ee3c d\u00f2ng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh s\u1ebd l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1. C\u00e1c ch\u1ec9 b\u00e1o c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh ph\u1ea7n b\u1ecb \u1ea3nh h\u01b0\u1edfng. Sau \u0111\u00f3, vi\u1ec7c s\u1eafp x\u1ebfp kh\u00f4i ph\u1ee5c \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t c\u00f3 th\u1ec3 cho ph\u00e9p c\u00e1c ph\u1ea7n l\u00e0nh m\u1ea1nh \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ebf, mi\u1ec5n l\u00e0 tuy\u1ebfn \u0111\u01b0\u1eddng thay th\u1ebf v\u00e0 bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 v\u1eabn ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t quan tr\u1ecdng l\u00e0 tr\u00e1ch nhi\u1ec7m. m\u1ed9t c\u00f4ng t\u1eafc v\u00f2ng cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng chuy\u1ec3n m\u1ea1ch v\u00e0 c\u00e1ch ly \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh c\u1ee7a n\u00f3; n\u00f3 kh\u00f4ng tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ng\u1eaft ng\u1eaft l\u1ed7i v\u00ec m\u1ed9t l\u1ed7i x\u1ea3y ra g\u1ea7n \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e2y gi\u1edd xem x\u00e9t m\u1ed9t l\u1ed7i tr\u00ean nh\u00e1nh bi\u1ebfn \u00e1p thay v\u00e0o \u0111\u00f3. b\u1ea3o v\u1ec7 nh\u00e1nh \u0111\u01b0\u1ee3c d\u1ef1 \u0111\u1ecbnh \u0111\u1ec3 x\u00f3a c\u00e1c l\u1ed7i trong nhi\u1ec7m v\u1ee5 \u0111\u01b0\u1ee3c giao c\u1ee7a n\u00f3, v\u1edbi \u0111\u1ed9 ch\u1ecdn l\u1ecdc \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi thi\u1ebft k\u1ebf b\u1ea3o v\u1ec7. b\u1ea3o v\u1ec7 c\u00e1p v\u00f2ng v\u00e0 b\u1ea3o v\u1ec7 bi\u1ebfn \u00e1p-feeder do \u0111\u00f3 y\u00eau c\u1ea7u ki\u1ec3m tra kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi mua, h\u00e3y y\u00eau c\u1ea7u nh\u00e0 thi\u1ebft k\u1ebf x\u00e1c \u0111\u1ecbnh c\u00e1c thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n v\u00e0 ng\u1eaft cho t\u1eebng v\u1ecb tr\u00ed l\u1ed7i \u0111\u00e1ng tin c\u1eady.B\u00e0i t\u1eadp \u0111\u00f3 ti\u1ebft l\u1ed9 nhi\u1ec1u h\u01a1n m\u1ed9t l\u1eddi h\u1ee9a chung chung v\u1ec1 \u201cph\u00e2n ph\u1ed1i \u0111\u00e1ng tin c\u1eady.\u201d<\/p>\n\n\n\n<h2 id=\"match-the-rmu-configuration-to-the-project\" class=\"wp-block-heading\">Kh\u1edbp C\u1ea5u h\u00ecnh RMU v\u1edbi D\u1ef1 \u00e1n<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Electric-Power-Construction02.jpg\" alt=\"X\u00e2y d\u1ef1ng \u0111i\u1ec7n n\u0103ng\" class=\"wp-image-1041\" srcset=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Electric-Power-Construction02.jpg 800w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Electric-Power-Construction02-300x225.jpg 300w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Electric-Power-Construction02-768x576.jpg 768w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Electric-Power-Construction02-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi so s\u00e1nh c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng, \u00e1nh x\u1ea1 m\u1ecdi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t v\u1edbi s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng v\u00e0 y\u00eau c\u1ea7u x\u1ebfp h\u1ea1ng c\u00f3 li\u00ean quan c\u1ee7a n\u00f3. gi\u1eef x\u1ebfp h\u1ea1ng li\u00ean t\u1ee5c-hi\u1ec7n t\u1ea1i, nhi\u1ec7m v\u1ee5 ng\u1eafn m\u1ea1ch v\u00e0 hi\u1ec7u su\u1ea5t h\u1ed3 quang n\u1ed9i b\u1ed9 trong c\u00e1c l\u0129nh v\u1ef1c ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/96236\" target=\"_blank\" rel=\"noopener\">IEC 62271-200<\/a>&nbsp;\u00e1p d\u1ee5ng cho c\u00e1c c\u1ee5m l\u1eafp r\u00e1p kim lo\u1ea1i c\u00f3 li\u00ean quan bao quanh tr\u00ean 1 kV \u0111\u1ebfn 52 kV. y\u00eau c\u1ea7u b\u1eb1ng ch\u1ee9ng cho l\u1eafp r\u00e1p \u0111\u01b0\u1ee3c cung c\u1ea5p v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 gi\u1ea5y ch\u1ee9ng nh\u1eadn cho c\u00e1c th\u00e0nh ph\u1ea7n ri\u00eang l\u1ebb. c\u00e1c ti\u00eau ch\u00ed ch\u1ea5p nh\u1eadn d\u1ef1 \u00e1n v\u00e0 phi\u00ean b\u1ea3n y\u00eau c\u1ea7u ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ecfa thu\u1eadn r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c\u1ee7a Lanshan&nbsp;<a href=\"https:\/\/lanshanelectric.com\/vi\/san-pham\/hxgn15-12-vong-trung-the-thiet-bi-chuyen-mach-chinh-rmu\/\">HXGN15-12 v\u00f2ng \u0111\u01a1n v\u1ecb ch\u00ednh<\/a>&nbsp;m\u00f4 t\u1ea3 c\u00e1c ch\u1ee9c n\u0103ng \u0111\u1ebfn, \u0111i, b\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p v\u00e0 \u0111o s\u00e1ng c\u00f3 th\u1ec3 \u0111\u1ecbnh c\u1ea5u h\u00ecnh, v\u1edbi c\u00e1c ng\u0103n chuy\u1ec3n m\u1ea1ch, thanh c\u00e1i, c\u00e1p v\u00e0 c\u01a1 ch\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u m\u1ed9t b\u1ea3ng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 c\u1ee7a d\u1ef1 \u00e1n x\u00e1c nh\u1eadn h\u1ec7 th\u1ed1ng c\u00e1ch \u0111i\u1ec7n ch\u00ednh x\u00e1c, thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, s\u01a1 \u0111\u1ed3 trung chuy\u1ec3n v\u00e0 t\u00e0i li\u1ec7u ki\u1ec3m tra. kh\u00f4ng \u00e1p d\u1ee5ng ph\u1ea1m vi lo\u1ea1t r\u1ed9ng cho c\u1ea5u h\u00ecnh HXGN15-12 c\u1ee5 th\u1ec3 m\u00e0 kh\u00f4ng c\u1ea7n x\u00e1c nh\u1eadn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">G\u1eedi s\u01a1 \u0111\u1ed3 m\u1ea1ng, x\u1ebfp h\u1ea1ng m\u00e1y bi\u1ebfn \u00e1p, th\u00f4ng tin m\u1ee9c l\u1ed7i, chi ti\u1ebft c\u00e1p v\u00e0 y\u00eau c\u1ea7u gi\u00e1m s\u00e1t c\u00f9ng nhau. \u0111i\u1ec1u n\u00e0y mang l\u1ea1i cho vi\u1ec7c xem x\u00e9t c\u1ea5u h\u00ecnh m\u1ed9t c\u01a1 s\u1edf k\u1ef9 thu\u1eadt nh\u1ea5t qu\u00e1n.<\/p>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t l\u1eafp r\u00e1p ph\u1ed1i h\u1ee3p, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t b\u1ed9 s\u01b0u t\u1eadp c\u00e1c b\u1ed9 ph\u1eadn ho\u00e1n \u0111\u1ed5i cho nhau. c\u00f4ng t\u1eafc v\u00f2ng, b\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p, thi\u1ebft b\u1ecb n\u1ed1i \u0111\u1ea5t v\u00e0 ch\u1ec9 s\u1ed1 m\u1ed7i c\u00f3 m\u1ed9t c\u00f4ng vi\u1ec7c x\u00e1c \u0111\u1ecbnh. l\u1ef1a ch\u1ecdn \u0111\u00fang l\u00e0m cho nh\u1eefng nhi\u1ec7m v\u1ee5 r\u00f5 r\u00e0ng tr\u00ean c\u00e1c b\u1ea3n v\u1ebd v\u00e0 h\u1ed7 tr\u1ee3 ch\u00fang v\u1edbi b\u1eb1ng ch\u1ee9ng th\u00edch h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/lanshanelectric.com\/vi\/lien-he-voi-chung-toi\/\">Li\u00ean h\u1ec7 Lanshan Electric<\/a>&nbsp;v\u1edbi s\u01a1 \u0111\u1ed3 m\u1ea1ng v\u00e0 c\u00e1c y\u00eau c\u1ea7u c\u1ee7a b\u1ed9 n\u1ea1p \u0111\u1ec3 th\u1ea3o lu\u1eadn v\u1ec1 c\u1ea5u h\u00ecnh RMU ph\u00f9 h\u1ee3p v\u1edbi d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 id=\"what-are-the-main-ring-main-unit-components\" class=\"wp-block-heading\">C\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng ch\u00ednh l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang bao g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch v\u00f2ng, thanh c\u00e1i, b\u1ed1 tr\u00ed b\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p, thi\u1ebft b\u1ecb n\u1ed1i \u0111\u1ea5t, \u0111\u1ea7u cu\u1ed1i c\u00e1p v\u00e0 c\u01a1 ch\u1ebf v\u1eadn h\u00e0nh. CT, r\u01a1le, ch\u1ec9 b\u00e1o \u0111i\u1ec7n \u00e1p, ch\u1ec9 b\u00e1o l\u1ed7i v\u00e0 \u0111o s\u00e1ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea5u h\u00ecnh \u0111\u00e3 ch\u1ecdn v\u00e0 c\u00e1c ch\u1ee9c n\u0103ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<h3 id=\"does-every-ring-main-unit-contain-a-circuit-breaker\" class=\"wp-block-heading\">C\u00f3 ph\u1ea3i m\u1ecdi b\u1ed9 ph\u1eadn ch\u00ednh c\u1ee7a v\u00f2ng \u0111\u1ec1u ch\u1ee9a b\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ed1 B\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p c\u00f4ng t\u1eafc-c\u1ea7u ch\u00ec ph\u1ed1i h\u1ee3p ho\u1eb7c s\u01a1 \u0111\u1ed3 d\u1ef1a tr\u00ean c\u1ea7u dao. x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb v\u00e0 b\u1ed1 tr\u00ed b\u1ea3o v\u1ec7 cho m\u1ed7i b\u1ed9 c\u1ea5p li\u1ec7u thay v\u00ec gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng m\u1ed7i ng\u0103n ch\u1ee9a m\u1ed9t c\u1ea7u dao.<\/p>\n\n\n\n<h3 id=\"can-a-load-break-switch-interrupt-a-short-circuit\" class=\"wp-block-heading\">C\u00f4ng t\u1eafc ng\u1eaft t\u1ea3i c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n \u0111o\u1ea3n m\u1ea1ch kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng suy ra kh\u1ea3 n\u0103ng ng\u1eaft ng\u1eafn m\u1ea1ch t\u1eeb m\u1ed9t t\u1ea3i-break, l\u00e0m ho\u1eb7c ch\u1ecbu \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1. s\u1eafp x\u1ebfp b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t ph\u1ea3i x\u00e1c \u0111\u1ecbnh c\u1ea7u dao ho\u1eb7c t\u1ed5 h\u1ee3p c\u1ea7u ch\u00ec ph\u1ed1i h\u1ee3p ch\u1ecbu tr\u00e1ch nhi\u1ec7m l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u00f2ng l\u1ed7i.<\/p>\n\n\n\n<h3 id=\"is-a-ring-main-unit-the-same-as-a-transformer\" class=\"wp-block-heading\">B\u1ed9 ph\u1eadn ch\u00ednh c\u1ee7a v\u00f2ng c\u00f3 gi\u1ed1ng nh\u01b0 m\u00e1y bi\u1ebfn \u00e1p kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ed1 RMU chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i trung \u00e1p; m\u00e1y bi\u1ebfn \u00e1p thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p. ch\u00fang c\u00f3 th\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ed9t tr\u1ea1m bi\u1ebfn \u00e1p, nh\u01b0ng nhi\u1ec7m v\u1ee5 \u0111i\u1ec7n v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt thi\u1ebft b\u1ecb c\u1ee7a ch\u00fang v\u1eabn kh\u00e1c bi\u1ec7t.<\/p>\n\n\n\n<h3 id=\"does-a-ring-main-unit-automatically-restore-power\" class=\"wp-block-heading\">B\u1ed9 ph\u1eadn ch\u00ednh c\u1ee7a v\u00f2ng c\u00f3 t\u1ef1 \u0111\u1ed9ng kh\u00f4i ph\u1ee5c ngu\u1ed3n \u0111i\u1ec7n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng ph\u1ea3i b\u1edfi ch\u00ednh n\u00f3. ph\u1ee5c h\u1ed3i ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u01b0\u1eddng d\u1eabn m\u1ea1ng c\u00f3 s\u1eb5n, x\u1ebfp h\u1ea1ng thi\u1ebft b\u1ecb, b\u1ea3o v\u1ec7 v\u00e0 s\u1eafp x\u1ebfp \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t. ho\u1ea1t \u0111\u1ed9ng t\u1eeb xa v\u00e0 t\u1ef1 \u0111\u1ed9ng ph\u1ee5c h\u1ed3i ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ri\u00eang; kh\u00f4ng theo sau \u0111\u01a1n gi\u1ea3n t\u1eeb t\u00ean RMU.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01a1n v\u1ecb ch\u00ednh v\u00f2ng, ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 v\u00e0 giao di\u1ec7n c\u00e1p. g\u1eedi cho Lanshan s\u01a1 \u0111\u1ed3 m\u1ea1ng c\u1ee7a b\u1ea1n \u0111\u1ec3 xem x\u00e9t c\u1ea5u h\u00ecnh RMU.<\/p>","protected":false},"author":1,"featured_media":831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[70,67,36,66,69,68],"class_list":["post-1420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-hxgn15-12","tag-load-break-switch","tag-medium-voltage-switchgear","tag-ring-main-unit","tag-rmu-components","tag-transformer-protection"],"_links":{"self":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1420","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/comments?post=1420"}],"version-history":[{"count":1,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1420\/revisions"}],"predecessor-version":[{"id":1421,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1420\/revisions\/1421"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media\/831"}],"wp:attachment":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media?parent=1420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/categories?post=1420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/tags?post=1420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}