{"id":4256,"date":"2026-09-27T00:00:00","date_gmt":"2026-09-27T00:00:00","guid":{"rendered":"https:\/\/chac-electric.com\/?p=4256"},"modified":"2026-09-18T08:07:14","modified_gmt":"2026-09-18T08:07:14","slug":"bo-ngat-mach-kieu-ac-so-voi-bo-ngat-mach-kieu-dc","status":"publish","type":"post","link":"https:\/\/chac-electric.com\/vi\/blog\/ac-miniature-circuit-breaker-vs-dc-mcb\/","title":{"rendered":"B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf AC vs B\u1ed9 ng\u1eaft m\u1ea1ch DC MCB"},"content":{"rendered":"

Khi m\u1ed9t vai tr\u00f2 trong d\u1ef1 \u00e1n g\u1eb7p v\u1ea5n \u0111\u1ec1 l\u1ef1a ch\u1ecdn, s\u1ef1 th\u1ea5t b\u1ea1i r\u00f5 r\u00e0ng 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. Tomas, m\u1ed9t k\u1ef9 s\u01b0 l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef pin \u1edf Prague, \u0111\u00e3 ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb MCB AC v\u00ec nh\u00e3n c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00f3 cho th\u1ea5y d\u00f2ng \u0111i\u1ec7n ph\u00f9 h\u1ee3p. Trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh gi\u00e1 thi\u1ebft k\u1ebf, gi\u1edbi h\u1ea1n \u0111i\u1ec7n \u00e1p v\u00e0 c\u1ef1c \u0111\u1ed9 c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u kh\u00f4ng \u0111\u01b0\u1ee3c ghi r\u00f5. Cu\u1ed1i c\u00f9ng, h\u1ecd \u0111\u00e3 l\u1ef1a ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 \u0111i\u1ec7n \u00e1p v\u00e0 c\u1ef1c \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, \u0111\u1ed3ng th\u1eddi c\u00f3 m\u1ed9t s\u01a1 \u0111\u1ed3 ph\u00e2n c\u00e1ch r\u00f5 r\u00e0ng.<\/p>\n

T\u00f3m t\u1eaft:<\/strong> C\u00e1c c\u1ea7u dao AC v\u00e0 DC c\u00f3 th\u1ec3 tr\u00f4ng t\u01b0\u01a1ng t\u1ef1 nhau nh\u01b0ng \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n h\u1ed3 quang kh\u00e1c nhau. C\u00e1c c\u1ea7u dao AC c\u00f3 l\u1ee3i t\u1eeb vi\u1ec7c kh\u00f4ng c\u00f3 d\u00f2ng \u0111i\u1ec7n \u0111i qua; c\u00e1c c\u1ea7u dao DC c\u1ea7n c\u00f3 bu\u1ed3ng h\u1ed3 quang v\u00e0 c\u00e1c c\u1ea5p \u0111i\u1ec7n ph\u00f9 h\u1ee3p v\u1edbi h\u1ed3 quang k\u00e9o d\u00e0i. So s\u00e1nh \u0111i\u1ec7n \u00e1p tr\u00ean m\u1ed7i c\u1ef1c, c\u1ef1c n\u1ed1i ti\u1ebfp\/ng\u01b0\u1ee3c n\u1ed1i ti\u1ebfp, c\u00e1ch s\u1eed d\u1ee5ng c\u1ef1c n\u1ed1i ti\u1ebfp\/ng\u01b0\u1ee3c n\u1ed1i ti\u1ebfp, kh\u1ea3 n\u0103ng ng\u1eaft d\u00f2ng \u0111i\u1ec7n v\u00e0 ti\u00eau chu\u1ea9n \u1ee9ng d\u1ee5ng. B\u00e0i vi\u1ebft n\u00e0y d\u1ef1a tr\u00ean b\u1eb1ng ch\u1ee9ng \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh v\u00e0 t\u00e1ch bi\u1ec7t kh\u1ea3 n\u0103ng s\u1ea3n ph\u1ea9m v\u1edbi tr\u00e1ch nhi\u1ec7m l\u1eafp \u0111\u1eb7t.<\/p>\n

\"\u1ee8ng<\/p>\n

Thay \u0111\u1ed5i c\u1ef1c \u0111\u1ed9 v\u00e0 v\u1eadt l\u00fd c\u1ee7a tia h\u1ed3 quang<\/h2>\n

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

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

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

\u0110\u00e1nh gi\u00e1 v\u1ec1 m\u1ea1ch pin v\u00e0 quang \u0111i\u1ec7n<\/h2>\n

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

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

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

L\u1ef1a ch\u1ecdn theo t\u1eebng \u1ee9ng d\u1ee5ng<\/h2>\n

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

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

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

\"S\u1ef1<\/p>\n

So s\u00e1nh cho m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 t\u00ednh b\u1ea3o v\u1ec7<\/h2>\n\n\n\n\n\n\n\n
K\u00edch th\u01b0\u1edbc<\/th>\nL\u1ef1a ch\u1ecdn A<\/th>\nPh\u01b0\u01a1ng \u00e1n B<\/th>\n<\/tr>\n<\/thead>\n
Gi\u00e1n \u0111o\u1ea1n \u0111\u01b0\u1eddng cong<\/td>\n\u0110i\u1ec3m ch\u00e9o d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/td>\nKi\u1ec3m so\u00e1t h\u1ed3 quang d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c<\/td>\n<\/tr>\n
\u0110i\u1ec7n c\u1ef1c<\/td>\nTh\u00f4ng th\u01b0\u1eddng kh\u00f4ng ph\u00e2n c\u1ef1c trong ph\u1ea1m vi \u0111\u00e1nh gi\u00e1<\/td>\nC\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 nh\u1ea1y v\u1edbi \u0111i\u1ec7n t\u00edch<\/td>\n<\/tr>\n
\u0110i\u1ec7n \u00e1p<\/td>\n\u0110i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng AC<\/td>\n\u0110i\u1ec7n \u00e1p DC theo c\u1ef1c v\u00e0 c\u1ea5u h\u00ecnh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1ef1a ch\u1ecdn v\u00e0 mua s\u1eafm<\/h2>\n
    \n
  1. \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
  2. 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
  3. 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
  4. 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
  5. 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

    \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 B\u1ed9 ng\u1eaft m\u1ea1ch DC<\/strong><\/a> v\u00e0 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>\n

    H\u00e3y coi AC v\u00e0 DC l\u00e0 hai v\u1ea5n \u0111\u1ec1 gi\u00e1n \u0111o\u1ea1n kh\u00e1c nhau<\/h2>\n

    An B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf AC<\/strong><\/a> v\u00e0 m\u1ed9t DC MCB<\/strong><\/a> m\u1ed7i h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 c\u00f3 chung m\u1ed9t nh\u00e3n hi\u1ec7u hi\u1ec7n t\u1ea1i, nh\u01b0ng gi\u1ea3 \u0111\u1ecbnh v\u1ec1 s\u1ef1 tuy\u1ec7t ch\u1ee7ng v\u00e0 c\u1ef1c \u0111\u1ed9 c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 kh\u00e1c nhau. Kh\u00e1i ni\u1ec7m thi\u1ebft k\u1ebf th\u1ee9 ba l\u00e0 gi\u1ea3m thi\u1ec3u tia c\u1ef1c t\u00edm<\/strong>Tr\u01b0\u1edbc khi thay th\u1ebf m\u1ed9t thi\u1ebft b\u1ecb b\u1eb1ng m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c, h\u00e3y x\u00e1c nh\u1eadn \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng \u0111\u1ecbnh m\u1ee9c, h\u01b0\u1edbng k\u1ebft n\u1ed1i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ng\u1eaft k\u1ebft n\u1ed1i t\u1eeb d\u1eef li\u1ec7u s\u1ea3n ph\u1ea9m.<\/p>\n

    S\u1eed d\u1ee5ng c\u00e1c l\u1ecbch tr\u00ecnh ri\u00eang bi\u1ec7t cho c\u00e1c m\u1ea1ch AC v\u00e0 DC. Ghi l\u1ea1i \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n d\u1ef1 ki\u1ebfn c\u1ee7a s\u1ef1 c\u1ed1, c\u1ef1c \u0111\u1ed9, v\u1ecb tr\u00ed n\u1ed1i ti\u1ebfp\/ng\u1ea7m v\u00e0 v\u1ecb tr\u00ed c\u00e1ch ly \u0111\u1ec3 so s\u00e1nh danh m\u1ee5c kh\u00f4ng \u1ea9n ch\u1ee9a c\u00e1c y\u00eau c\u1ea7u ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng t\u01b0\u01a1ng th\u00edch.<\/p>\n

    B\u00e0i vi\u1ebft li\u00ean quan: C\u00e1c lo\u1ea1i c\u1ea7u dao DC<\/a> Th\u00eam ki\u1ec3m tra \u1ee9ng d\u1ee5ng \u0111\u1ed1i v\u1edbi pin v\u00e0 m\u1ea1ch PV.<\/p>\n

    C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

    C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ea7u n\u1ed1i MCB AC tr\u00ean m\u1ea1ch DC kh\u00f4ng?<\/h3>\n

    Ch\u1ec9 khi b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y cung c\u1ea5p r\u00f5 r\u00e0ng th\u00f4ng s\u1ed1 \u0111\u1ecbnh m\u1ee9c DC v\u00e0 c\u1ea5u h\u00ecnh c\u1ef1c ph\u00f9 h\u1ee3p th\u00ec m\u1edbi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. N\u1ebfu kh\u00f4ng, h\u00e3y s\u1eed d\u1ee5ng MCB ho\u1eb7c MCCB DC \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 th\u1eed nghi\u1ec7m cho ch\u1ee9c n\u0103ng \u0111\u00f3.<\/p>\n

    T\u1ea1i sao ch\u1ec9 s\u1ed1 DC l\u1ea1i th\u1ea5p h\u01a1n ho\u1eb7c kh\u00e1c nhau?<\/h3>\n

    N\u1ebfu kh\u00f4ng c\u00f3 d\u00f2ng \u0111i\u1ec7n t\u1ef1 nhi\u00ean, b\u1ed9 ng\u1eaft ph\u1ea3i k\u00e9o gi\u00e3n v\u00e0 d\u1eadp t\u1eaft tia l\u1eeda b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng bu\u1ed3ng v\u00e0 thi\u1ebft k\u1ebf t\u1eeb c\u1ee7a m\u00ecnh. \u0110i\u1ec7n \u00e1p v\u00e0 c\u1ea5u h\u00ecnh c\u1ef1c \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn nhi\u1ec7m v\u1ee5 n\u00e0y.<\/p>\n

    T\u00f4i n\u00ean \u0111\u1ea5u d\u00e2y nh\u01b0 th\u1ebf n\u00e0o cho m\u1ed9t b\u1ed9 c\u00f4ng t\u1eafc DC c\u00f3 \u0111\u1ed9 nh\u1ea1y v\u1ec1 c\u1ef1c?<\/h3>\n

    H\u00e3y tu\u00e2n th\u1ee7 \u0111\u01b0\u1eddng d\u00e2y\/d\u1ea5u hi\u1ec7u t\u1ea3i v\u00e0 d\u1ea5u hi\u1ec7u t\u00edch c\u1ef1c\/ti\u00eau c\u1ef1c m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. \u0110\u1ecdc t\u00e0i li\u1ec7u v\u1ec1 b\u1ed1 tr\u00ed v\u00e0 x\u00e1c nh\u1eadn s\u1ef1 c\u00e1ch ly tr\u01b0\u1edbc khi kh\u1edfi \u0111\u1ed9ng.<\/p>\n

    Li\u1ec7u m\u1ed9t \u1ed5 c\u1eafm MCB DC c\u00f3 c\u1ea7n c\u00f4ng su\u1ea5t c\u1eaft cao h\u01a1n kh\u00f4ng?<\/h3>\n

    N\u00f3 c\u1ea7n c\u00f4ng su\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi d\u00f2ng \u0111i\u1ec7n l\u1ed7i DC c\u00f3 s\u1eb5n. H\u1ec7 th\u1ed1ng pin c\u00f3 th\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng l\u1ed7i r\u1ea5t cao ngay c\u1ea3 \u1edf \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh khi\u00eam t\u1ed1n.<\/p>\n

    T\u00e0i li\u1ec7u tham kh\u1ea3o c\u00f3 th\u1ea9m quy\u1ec1n<\/h2>\n