{"id":4250,"date":"2026-09-26T00:00:00","date_gmt":"2026-09-26T00:00:00","guid":{"rendered":"https:\/\/chac-electric.com\/?p=4250"},"modified":"2026-09-18T08:06:35","modified_gmt":"2026-09-18T08:06:35","slug":"cac-loai-cau-dao-dc","status":"publish","type":"post","link":"https:\/\/chac-electric.com\/vi\/blog\/dc-circuit-breaker-types\/","title":{"rendered":"C\u00e1c lo\u1ea1i c\u1ea7u dao DC"},"content":{"rendered":"<p>Khi m\u1ed9t d\u1ef1 \u00e1n g\u1eb7p v\u1ea5n \u0111\u1ec1 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb, s\u1ef1 c\u1ed1 c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u01b0\u1edbc khi nguy\u00ean nh\u00e2n th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c hi\u1ec3u r\u00f5. Leo, m\u1ed9t nh\u00e0 l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi t\u1ea1i Perth, \u0111\u00e3 l\u1eafp \u0111\u1eb7t m\u1ed9t b\u1ed9 c\u00f4ng t\u1eafc m\u1ea1ch c\u00f4ng su\u1ea5t (MCB) xoay chi\u1ec1u tr\u00ean m\u1ed9t chu\u1ed7i pin v\u00ec \u0111i\u1ec7n \u00e1p t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00f4ng su\u1ea5t c\u1ee7a ch\u00fang. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, m\u1ed9t v\u00f2ng \u0111i\u1ec7n t\u00edch DC kh\u00f4ng \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng nh\u01b0 mong \u0111\u1ee3i. Vi\u1ec7c thay th\u1ebf n\u00f3 b\u1eb1ng m\u1ed9t thi\u1ebft b\u1ecb DC c\u00f3 c\u00f4ng su\u1ea5t v\u00e0 \u0111i\u1ec7n \u00e1p ph\u00f9 h\u1ee3p \u0111\u00e3 kh\u00f4i ph\u1ee5c kh\u1ea3 n\u0103ng c\u00e1ch ly an to\u00e0n.<\/p>\n<p><strong>T\u00f3m t\u1eaft:<\/strong> C\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch DC \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac m\u1ea1ch, \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n, c\u1ef1c, kh\u1ea3 n\u0103ng ng\u1eaft v\u00e0 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng. C\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m bao g\u1ed3m b\u1ed9 ng\u1eaft m\u1ea1ch DC, b\u1ed9 ng\u1eaft c\u00f3 v\u1ecf b\u1ecdc v\u00e0 c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111\u1eb7c bi\u1ec7t cho pin ho\u1eb7c pin m\u1eb7t tr\u1eddi. C\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ecbnh m\u1ee9c AC kh\u00f4ng th\u1ec3 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c v\u00ec c\u00e1c v\u00f2ng cung DC kh\u00f4ng \u0111i qua \u0111i\u1ec3m zero d\u00f2ng \u0111i\u1ec7n t\u1ef1 nhi\u00ean. B\u00e0i vi\u1ebft n\u00e0y \u0111\u01b0a ra c\u00e1c b\u1eb1ng ch\u1ee9ng \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh v\u00e0 t\u00e1ch bi\u1ec7t kh\u1ea3 n\u0103ng c\u1ee7a s\u1ea3n ph\u1ea9m v\u1edbi tr\u00e1ch nhi\u1ec7m l\u1eafp \u0111\u1eb7t.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chac-electric.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-types-featured-v2-200k.webp\" alt=\"C\u00e1c lo\u1ea1i c\u1ea7u dao \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn\" loading=\"eager\"\/><\/p>\n<h2>C\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m DC MCB v\u00e0 MCCB<\/h2>\n<p>C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb ranh gi\u1edbi \u1ee9ng d\u1ee5ng. H\u00e3y x\u00e1c \u0111\u1ecbnh ngu\u1ed3n, t\u1ea3i, d\u00e2y d\u1eabn, m\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c catalogue. M\u1ed9t thi\u1ebft b\u1ecb tr\u00f4ng c\u00f3 v\u1ebb ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ed3 quang, t\u00ednh ch\u1ecdn l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. H\u00e3y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau chu\u1ea9n \u0111i d\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0m ng\u00f4n ng\u1eef chung gi\u1eefa thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n<p>L\u1eadp t\u00e0i li\u1ec7u v\u1ec1 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra ch\u00fang t\u1ea1i t\u1ee7 \u0111i\u1ec7n. V\u00ed d\u1ee5, m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 b\u1ea3o v\u1ec7 c\u1ea7n n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) d\u1ef1 ki\u1ebfn, kh\u1ea3 n\u0103ng mang d\u00f2ng c\u1ee7a d\u00e2y d\u1eabn v\u00e0 th\u1eddi gian c\u1eaft y\u00eau c\u1ea7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 nh\u01b0 th\u1eed nghi\u1ec7m ti\u00eam d\u00f2ng s\u01a1 c\u1ea5p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n ho\u1eb7c nghi\u00ean c\u1ee9u ph\u1ed1i h\u1ee3p s\u1ebd h\u1eefu \u00edch h\u01a1n so v\u1edbi m\u1ed9t tuy\u00ean b\u1ed1 chung chung r\u1eb1ng m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u201cc\u1ea5p \u0111\u1ed9 c\u00f4ng nghi\u1ec7p.\u201d<\/p>\n<p>N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng \u0111\u00edch, h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c lo\u1ea1i \u1ee9ng d\u1ee5ng, h\u00e3y n\u00eau gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh.<\/p>\n<h2>Thi\u1ebft k\u1ebf b\u1ed9 k\u1ebft h\u1ee3p pin v\u00e0 PV<\/h2>\n<p>C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb ranh gi\u1edbi \u1ee9ng d\u1ee5ng. H\u00e3y x\u00e1c \u0111\u1ecbnh ngu\u1ed3n, t\u1ea3i, d\u00e2y d\u1eabn, m\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c catalogue. M\u1ed9t thi\u1ebft b\u1ecb tr\u00f4ng c\u00f3 v\u1ebb ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ed3 quang, t\u00ednh ch\u1ecdn l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. H\u00e3y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau chu\u1ea9n \u0111i d\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0m ng\u00f4n ng\u1eef chung gi\u1eefa thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n<p>L\u1eadp t\u00e0i li\u1ec7u v\u1ec1 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra ch\u00fang t\u1ea1i t\u1ee7 \u0111i\u1ec7n. V\u00ed d\u1ee5, m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 b\u1ea3o v\u1ec7 c\u1ea7n n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) d\u1ef1 ki\u1ebfn, kh\u1ea3 n\u0103ng mang d\u00f2ng c\u1ee7a d\u00e2y d\u1eabn v\u00e0 th\u1eddi gian c\u1eaft y\u00eau c\u1ea7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 nh\u01b0 th\u1eed nghi\u1ec7m ti\u00eam d\u00f2ng s\u01a1 c\u1ea5p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n ho\u1eb7c nghi\u00ean c\u1ee9u ph\u1ed1i h\u1ee3p s\u1ebd h\u1eefu \u00edch h\u01a1n so v\u1edbi m\u1ed9t tuy\u00ean b\u1ed1 chung chung r\u1eb1ng m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u201cc\u1ea5p \u0111\u1ed9 c\u00f4ng nghi\u1ec7p.\u201d<\/p>\n<p>N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng \u0111\u00edch, h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c lo\u1ea1i \u1ee9ng d\u1ee5ng, h\u00e3y n\u00eau gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh.<\/p>\n<h2>\u0110\u1ed9 ph\u00e2n c\u1ef1c, \u0111i\u1ec7n \u00e1p v\u00e0 s\u1ef1 gi\u00e1n \u0111o\u1ea1n c\u1ee7a v\u00f2ng \u0111i\u1ec7n<\/h2>\n<p>C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb ranh gi\u1edbi \u1ee9ng d\u1ee5ng. H\u00e3y x\u00e1c \u0111\u1ecbnh ngu\u1ed3n, t\u1ea3i, d\u00e2y d\u1eabn, m\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c catalogue. M\u1ed9t thi\u1ebft b\u1ecb tr\u00f4ng c\u00f3 v\u1ebb ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ed3 quang, t\u00ednh ch\u1ecdn l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. H\u00e3y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau chu\u1ea9n \u0111i d\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0m ng\u00f4n ng\u1eef chung gi\u1eefa thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n<p>L\u1eadp t\u00e0i li\u1ec7u v\u1ec1 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra ch\u00fang t\u1ea1i t\u1ee7 \u0111i\u1ec7n. V\u00ed d\u1ee5, m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 b\u1ea3o v\u1ec7 c\u1ea7n n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) d\u1ef1 ki\u1ebfn, kh\u1ea3 n\u0103ng mang d\u00f2ng c\u1ee7a d\u00e2y d\u1eabn v\u00e0 th\u1eddi gian c\u1eaft y\u00eau c\u1ea7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 nh\u01b0 th\u1eed nghi\u1ec7m ti\u00eam d\u00f2ng s\u01a1 c\u1ea5p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n ho\u1eb7c nghi\u00ean c\u1ee9u ph\u1ed1i h\u1ee3p s\u1ebd h\u1eefu \u00edch h\u01a1n so v\u1edbi m\u1ed9t tuy\u00ean b\u1ed1 chung chung r\u1eb1ng m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u201cc\u1ea5p \u0111\u1ed9 c\u00f4ng nghi\u1ec7p.\u201d<\/p>\n<p>N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng \u0111\u00edch, h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c lo\u1ea1i \u1ee9ng d\u1ee5ng, h\u00e3y n\u00eau gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chac-electric.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-types-product-200k.webp\" alt=\"C\u00e1c lo\u1ea1i c\u1ea7u dao ch\u1eadp \u0111i\u1ec7n CHAC\" loading=\"lazy\"\/><\/p>\n<h2>So s\u00e1nh cho m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 t\u00ednh b\u1ea3o v\u1ec7<\/h2>\n<table>\n<thead>\n<tr>\n<th>K\u00edch th\u01b0\u1edbc<\/th>\n<th>L\u1ef1a ch\u1ecdn A<\/th>\n<th>Ph\u01b0\u01a1ng \u00e1n B<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u1ea3o v\u1ec7 chu\u1ed7i<\/td>\n<td>B\u1ed9 c\u00f4ng t\u1eafc MCB ho\u1eb7c c\u1ea7u ch\u00ec<\/td>\n<td>\u0110i\u1ec7n \u00e1p, c\u1ef1c v\u00e0 d\u00f2ng \u0111i\u1ec7n trong d\u00e2y<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 c\u1ea5p ngu\u1ed3n pin<\/td>\n<td>B\u1ed9 ph\u1eadn ng\u1eaft m\u1ea1ch DC ho\u1eb7c b\u1ed9 ph\u1eadn ng\u1eaft pin<\/td>\n<td>Kh\u1ea3 n\u0103ng ng\u1eaft k\u1ebft n\u1ed1i v\u00e0 l\u1ed7i ti\u1ec1m \u1ea9n<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 gh\u00e9p quang<\/td>\n<td>Ph\u00e2n ph\u1ed1i \u0111i\u1ec7n ho\u1eb7c c\u1ea7u ch\u00ec PV<\/td>\n<td>Nghi\u00ean c\u1ee9u v\u1ec1 \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1ef1a ch\u1ecdn v\u00e0 mua s\u1eafm<\/h2>\n<ol>\n<li>\u0110\u00f3ng b\u0103ng c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1ec1 \u0111i\u1ec7n: \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng, s\u1ed1 c\u1ef1c, d\u00f2ng t\u1ea3i, ph\u01b0\u01a1ng ph\u00e1p d\u1eabn \u0111i\u1ec7n, d\u00f2ng s\u1ef1 c\u1ed1 v\u00e0 gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li>Y\u00eau c\u1ea7u d\u1eef li\u1ec7u theo d\u00f2ng s\u1ea3n ph\u1ea9m: phi\u00ean b\u1ea3n ti\u00eau chu\u1ea9n, \u0111\u01b0\u1eddng \u0111\u1eb7c t\u00ednh d\u00f2ng c\u1eaft, kh\u1ea3 n\u0103ng ng\u1eaft, gi\u1edbi h\u1ea1n c\u1ef1c \u0111\u1ea5u d\u00e2y, k\u00edch th\u01b0\u1edbc v\u00e0 b\u1eb1ng ch\u1ee9ng th\u1eed nghi\u1ec7m.<\/li>\n<li>Xem x\u00e9t vi\u1ec7c ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb th\u01b0\u1ee3ng ngu\u1ed3n v\u00e0 h\u1ea1 ngu\u1ed3n; kh\u00f4ng suy lu\u1eadn t\u00ednh ch\u1ecdn l\u1ecdc t\u1eeb nh\u00e3n hi\u1ec7u ho\u1eb7c k\u00edch th\u01b0\u1edbc khung.<\/li>\n<li>Ph\u00ea duy\u1ec7t m\u1eabu ho\u1eb7c b\u00e0i vi\u1ebft \u0111\u1ea7u ti\u00ean, ghi l\u1ea1i l\u1ef1c si\u1ebft v\u00e0 c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra, \u0111\u1ed3ng th\u1eddi x\u00e1c \u0111\u1ecbnh ai l\u00e0 ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra ch\u1ea1y th\u1eed.<\/li>\n<li>L\u1eadp k\u1ebf ho\u1ea1ch ph\u1ee5 t\u00f9ng v\u00e0 qu\u1ea3n l\u00fd thay \u0111\u1ed5i \u0111\u1ec3 vi\u1ec7c thay th\u1ebf sau n\u00e0y kh\u00f4ng l\u00e0m thay \u0111\u1ed5i \u00e2m th\u1ea7m hi\u1ec7u su\u1ea5t an to\u00e0n.<\/li>\n<\/ol>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi mua \u0111ang so s\u00e1nh c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh, CHAC Electric cung c\u1ea5p th\u00f4ng tin c\u00f4ng khai v\u1ec1 <a href=\"https:\/\/chac-electric.com\/vi\/dc-circuit-breakers\/\"><strong>B\u1ed9 ng\u1eaft m\u1ea1ch DC<\/strong><\/a> v\u00e0 <a href=\"https:\/\/chac-electric.com\/vi\/thiet-bi-phan-phoi-dien\/\"><strong>thi\u1ebft b\u1ecb ph\u00e2n ph\u1ed1i \u0111i\u1ec7n<\/strong><\/a>. H\u00e3y coi c\u00e1c trang n\u00e0y l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u v\u00e0 x\u00e1c nh\u1eadn d\u1eef li\u1ec7u m\u00f4 h\u00ecnh ch\u00ednh x\u00e1c cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n<p><!-- second-round-optimization --><\/p>\n<h2>\u0110i\u1ec1u ch\u1ec9nh c\u1ef1c \u0111\u1ed9 v\u00e0 chu tr\u00ecnh c\u1ee7a cu\u1ed9n d\u00e2y DC theo \u1ee9ng d\u1ee5ng<\/h2>\n<p>Kh\u00e1c nhau <a href=\"https:\/\/chac-electric.com\/vi\/dc-circuit-breakers\/\"><strong>C\u00e1c lo\u1ea1i c\u1ea7u dao DC<\/strong><\/a> Ch\u00fang \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo ph\u1ea1m vi \u0111i\u1ec7n \u00e1p, y\u00eau c\u1ea7u v\u1ec1 c\u1ef1c, thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u0103n ch\u1eb7n tia h\u1ed3 quang ph\u00e1t ra v\u00e0 \u1ee9ng d\u1ee5ng d\u1ef1 \u0111\u1ecbnh. <a href=\"https:\/\/chac-electric.com\/vi\/dc-circuit-breakers\/\"><strong>DC MCB<\/strong><\/a> Do \u0111\u00f3, n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra so v\u1edbi \u0111i\u1ec7n \u00e1p c\u1ee7a pin ho\u1eb7c d\u00e2y PV v\u00e0 d\u00f2ng \u0111i\u1ec7n l\u1ed7i c\u00f3 s\u1eb5n, kh\u00f4ng n\u00ean ch\u1ecdn t\u1eeb danh m\u1ee5c \u0111i\u1ec7n \u00e1p AC theo \u0111\u01a1n v\u1ecb ampe. V\u1ea5n \u0111\u1ec1 b\u1ecb b\u1ecf qua l\u00e0 <strong>Ch\u1ed1ng \u0111i\u1ec7n tr\u1edf c\u1ef1c<\/strong>H\u00e3y tu\u00e2n theo s\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ki\u1ec3m tra xem s\u1ef1 \u0111\u1ea3o c\u1ef1c c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t ng\u1eaft k\u1ebft n\u1ed1i kh\u00f4ng.<\/p>\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng PV v\u00e0 pin, h\u00e3y ghi l\u1ea1i \u0111i\u1ec7n \u00e1p kh\u00f4ng t\u1ea3i t\u1ed1i \u0111a, d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch, d\u00f2ng \u0111i\u1ec7n l\u1ed7i DC ti\u1ec1m \u1ea9n v\u00e0 c\u00e1c \u0111i\u1ec3m c\u00e1ch ly. Nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0y gi\u00fap ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t d\u1ec5 d\u00e0ng so s\u00e1nh c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m h\u01a1n l\u00e0 ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 th\u00f4ng tin m\u00f4 t\u1ea3.<\/p>\n<p>B\u00e0i vi\u1ebft li\u00ean quan: <a href=\"https:\/\/chac-electric.com\/vi\/?p=4256\">B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf AC vs B\u1ed9 ng\u1eaft m\u1ea1ch DC MCB<\/a> Gi\u1ea3i th\u00edch l\u00fd do nguy\u00ean nh\u00e2n c\u1ee7a v\u1ea5n \u0111\u1ec1 gi\u00e1n \u0111o\u1ea1n thay \u0111\u1ed5i gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng.<\/p>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ed9 ng\u1eaft pha AC cho d\u00f2ng \u0111i\u1ec7n DC kh\u00f4ng?<\/h3>\n<p>Ch\u1ec9 khi nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u01b0a ra ch\u1ec9 s\u1ed1 \u0111\u1ecbnh m\u1ee9c cho \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n v\u00e0 c\u1ea5u tr\u00fac c\u1ef1c theo y\u00eau c\u1ea7u th\u00ec m\u1edbi \u0111\u01b0\u1ee3c coi l\u00e0 ph\u00f9 h\u1ee3p. Ch\u1ec9 s\u1ed1 \u0111\u1ecbnh m\u1ee9c ch\u1ec9 d\u00f9ng cho d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 kh\u00f4ng \u0111\u1ee7 v\u00ec quy tr\u00ecnh ti\u00eau di\u1ec7t tia s\u00e9t \u1edf d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 kh\u00e1c nhau.<\/p>\n<h3>T\u1ea1i sao \u0111\u1ed9 ph\u00e2n c\u1ef1c l\u1ea1i quan tr\u1ecdng tr\u00ean b\u1ed9 ng\u1eaft \u0111i\u1ec7n DC?<\/h3>\n<p>C\u00e1c bu\u1ed3ng n\u1ed5 v\u00e0 h\u1ed3 quang t\u1eeb t\u00ednh c\u00f3 th\u1ec3 c\u00f3 h\u01b0\u1edbng. H\u00e3y tu\u00e2n th\u1ee7 c\u00e1c d\u1ea5u hi\u1ec7u v\u1ec1 h\u01b0\u1edbng c\u1ef1c v\u00e0 s\u01a1 \u0111\u1ed3 n\u1ed1i d\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c m\u1ea1ch pin c\u00f3 c\u00f4ng su\u1ea5t cao.<\/p>\n<h3>M\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng PV n\u00ean ki\u1ec3m tra nh\u1eefng g\u00ec?<\/h3>\n<p>Ki\u1ec3m tra \u0111i\u1ec7n \u00e1p kh\u00f4ng t\u1ea3i t\u1ed1i \u0111a \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p nh\u1ea5t, d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch, \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng ng\u01b0\u1ee3c, nh\u00f3m d\u00e2y v\u00e0 hi\u1ec7u su\u1ea5t ng\u1eaft \u0111i\u1ec7n DC c\u1ee7a c\u1ea7u b\u1ea3o v\u1ec7.<\/p>\n<h3>C\u00e1c c\u1ea7u b\u1ea3o v\u1ec7 DC c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi pin kh\u00f4ng?<\/h3>\n<p>M\u1ed9t s\u1ed1 c\u00f3 th\u1ec3, nh\u01b0ng n\u0103ng l\u01b0\u1ee3ng do l\u1ed7i pin c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng c\u1ee7a b\u1ed9 ng\u1eaft nh\u1ecf. X\u00e1c nh\u1eadn th\u00f4ng s\u1ed1 d\u00f2ng \u0111i\u1ec7n d\u1ef1 ki\u1ebfn, h\u00e0nh vi gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n v\u00e0 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n<h2>T\u00e0i li\u1ec7u tham kh\u1ea3o c\u00f3 th\u1ea9m quy\u1ec1n<\/h2>\n<ul>\n<li>IEC 60947-2 (tham kh\u1ea3o phi\u00ean b\u1ea3n hi\u1ec7n h\u00e0nh v\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c gia).<\/li>\n<li>IEC 60947-3 (tham kh\u1ea3o phi\u00ean b\u1ea3n hi\u1ec7n t\u1ea1i v\u00e0 vi\u1ec7c \u00e1p d\u1ee5ng t\u1ea1i qu\u1ed1c gia).<\/li>\n<li>IEC 60364-7-712 (tham kh\u1ea3o \u1ea5n b\u1ea3n hi\u1ec7n t\u1ea1i v\u00e0 vi\u1ec7c \u00e1p d\u1ee5ng t\u1ea1i qu\u1ed1c gia).<\/li>\n<\/ul>\n<p>Nguy\u00ean t\u1eafc l\u00e2u b\u1ec1n r\u1ea5t \u0111\u01a1n gi\u1ea3n: ch\u1ec9 \u0111\u1ecbnh m\u1ea1ch v\u00e0 b\u1eb1ng ch\u1ee9ng c\u00f9ng nhau, sau \u0111\u00f3 ki\u1ec3m tra k\u1ebft qu\u1ea3 \u0111\u00e3 l\u1eafp r\u00e1p. \u0110\u1ed1i v\u1edbi vi\u1ec7c \u0111\u00e1nh gi\u00e1 m\u00f4 h\u00ecnh, c\u00e2u h\u1ecfi \u1ee9ng d\u1ee5ng ho\u1eb7c tr\u00edch d\u1eabn c\u00f3 t\u00e0i li\u1ec7u, <a href=\"https:\/\/chac-electric.com\/vi\/contact-us\/\">li\u00ean h\u1ec7 \u0110i\u1ec7n l\u1ef1c CHAC<\/a> v\u00e0 chia s\u1ebb c\u00e1c y\u00eau c\u1ea7u v\u1ec1 ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c, \u0111i\u1ec7n \u00e1p v\u00e0 th\u1ecb tr\u01b0\u1eddng ti\u00eau th\u1ee5.<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1c lo\u1ea1i c\u1ea7u dao DC c\u00f9ng v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn, h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n, ph\u1ed1i h\u1ee3p v\u00e0 ki\u1ec3m tra tu\u00e2n th\u1ee7 c\u1ea7n thi\u1ebft cho ng\u01b0\u1eddi mua \u0111i\u1ec7n tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>","protected":false},"author":1,"featured_media":4248,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4250","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"acf":[],"_links":{"self":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts\/4250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/comments?post=4250"}],"version-history":[{"count":2,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts\/4250\/revisions"}],"predecessor-version":[{"id":4306,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts\/4250\/revisions\/4306"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/media\/4248"}],"wp:attachment":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/media?parent=4250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/categories?post=4250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/tags?post=4250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}