{"id":4241,"date":"2026-09-25T00:00:00","date_gmt":"2026-09-25T00:00:00","guid":{"rendered":"https:\/\/chac-electric.com\/?p=4241"},"modified":"2026-09-18T08:05:47","modified_gmt":"2026-09-18T08:05:47","slug":"bo-chuyen-doi-cong-suat-3-cuc-100-amp","status":"publish","type":"post","link":"https:\/\/chac-electric.com\/vi\/blog\/3-pole-100-amp-mcb\/","title":{"rendered":"B\u1ed9 ph\u1eadn MCB 3 c\u1ef1c 100 amp"},"content":{"rendered":"

Khi m\u1ed9t d\u1ef1 \u00e1n g\u1eb7p v\u1ea5n \u0111\u1ec1 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb, 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. Omar, k\u1ef9 s\u01b0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n tho\u1ea1i t\u1ea1i Doha, \u0111\u00e3 ch\u1ecdn m\u1ed9t b\u1ed9 c\u00f4ng t\u1eafc MCB 100 A ba c\u1ef1c cho thi\u1ebft b\u1ecb c\u1ea5p \u0111i\u1ec7n cho m\u00e1y b\u01a1m ch\u1ec9 d\u1ef1a tr\u00ean d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a \u0111\u1ed9ng c\u01a1. Sau \u0111\u00f3, vi\u1ec7c t\u00ednh to\u00e1n s\u1ef1 ng\u1eafn m\u1ea1ch cho th\u1ea5y m\u1ee9c \u0111\u1ed9 l\u1ed7i c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa b\u1eb1ng c\u00e1ch ki\u1ec3m tra t\u1ea3i ba pha, \u0111\u01b0\u1eddng cong d\u00f2ng \u0111i\u1ec7n, c\u00e1p v\u00e0 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ng\u1eaft \u0111i\u1ec7n c\u00f9ng l\u00fac.<\/p>\n

T\u00f3m t\u1eaft:<\/strong> B\u1ed9 c\u00f4ng t\u1eafc MCB 100 A ba c\u1ef1c chuy\u1ec3n m\u1ea1ch ba pha v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ed9t m\u1ea1ch ba pha c\u00f3 d\u00f2ng \u0111i\u1ec7n v\u00e0 c\u00f4ng su\u1ea5t qu\u00e1 t\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb. Nh\u00e3n \u201c100 A\u201d kh\u00f4ng x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u00e1p, kh\u1ea3 n\u0103ng ch\u1ed1ng gi\u1eadt ho\u1eb7c ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9ng c\u01a1. Kh\u00e1ch h\u00e0ng n\u00ean ki\u1ec3m tra s\u1ef1 c\u00e2n b\u1eb1ng pha, x\u1eed l\u00fd trung t\u00ednh, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi \u0111\u01b0\u1eddng ray DIN v\u00e0 s\u1ef1 ph\u1ed1i h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 ph\u00eda tr\u01b0\u1edbc. 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 c\u1ee7a s\u1ea3n ph\u1ea9m v\u1edbi tr\u00e1ch nhi\u1ec7m l\u1eafp \u0111\u1eb7t.<\/p>\n

\"\u1ee8ng<\/p>\n

L\u1ef1a ch\u1ecdn d\u00f2ng \u0111i\u1ec7n ba pha v\u00e0 c\u00e1p<\/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

Quy\u1ebft \u0111\u1ecbnh v\u1ec1 \u0111\u01b0\u1eddng cong C v\u00e0 d\u00f2ng \u0111i\u1ec7n l\u0169<\/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

C\u00e0i \u0111\u1eb7t v\u00e0 ph\u1ed1i h\u1ee3p l\u1eafp \u0111\u1eb7t tr\u00ean gi\u00e1 DIN<\/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\u1ea3n<\/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
Hi\u1ec7n t\u1ea1i<\/td>\n\u0110i\u1ec7n th\u1ebf pha \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n l\u00e0 g\u00ec?<\/td>\nL\u1eadp k\u1ebf ho\u1ea1ch t\u1ea3i v\u00e0 s\u1ef1 \u0111a d\u1ea1ng<\/td>\n<\/tr>\n
\u0110\u01b0\u1eddng cong<\/td>\nL\u1ef1c d\u00f2ng \u0111i\u1ec7n v\u00e0o l\u00e0m n\u00ean s\u1ef1 gia t\u0103ng n\u00e0o?<\/td>\n\u0110\u1ed3 th\u1ecb d\u00f2ng \u0111i\u1ec7n v\u00e0 d\u1eef li\u1ec7u b\u1eaft \u0111\u1ea7u<\/td>\n<\/tr>\n
Tr\u00e1ch nhi\u1ec7m sai s\u00f3t<\/td>\nC\u00f3 hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o ti\u1ec1m \u1ea9n kh\u00f4ng?<\/td>\nT\u00ednh to\u00e1n ng\u1eafn m\u1ea1ch<\/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 C\u00e1c s\u1ea3n ph\u1ea9m MCB<\/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

    Ki\u1ec3m tra t\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a gi\u1ea3 \u0111\u1ecbnh ba pha tr\u01b0\u1edbc khi ch\u1ecdn ba c\u1ef1c<\/h2>\n

    A B\u1ed9 ng\u1eaft pha 3 c\u1ef1c<\/strong><\/a> Ph\u00f9 h\u1ee3p ch\u1ec9 khi l\u1ecbch tr\u00ecnh \u0111\u1ea5u n\u1ed1i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p chuy\u1ec3n m\u1ea1ch y\u00eau c\u1ea7u t\u1ea5t c\u1ea3 ba d\u00e2y d\u1eabn \u0111ang ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c ng\u1eaft k\u1ebft n\u1ed1i c\u00f9ng nhau. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y b\u1ea3o v\u1ec7 ba pha<\/strong><\/a> L\u1eadp k\u1ebf ho\u1ea1ch, x\u00e1c minh \u0111i\u1ec7n \u00e1p t\u1eeb pha n\u00e0y sang pha kh\u00e1c, c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u1ee7a d\u00e2y d\u1eabn v\u00e0 d\u00f2ng \u0111i\u1ec7n l\u1ed7i ti\u1ec1m \u1ea9n. V\u1ea5n \u0111\u1ec1 b\u1ecb b\u1ecf qua l\u00e0 c\u00e2n b\u1eb1ng pha<\/strong>: C\u00e1c t\u1ea3i \u0111i\u1ec7n m\u1ed9t pha kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 thay \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n trung t\u00ednh v\u00e0 c\u1ea5u h\u00ecnh ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi c\u00f4ng su\u1ea5t ch\u00ednh l\u00e0 100A.<\/p>\n

    S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng \u0111\u1ec3 cho bi\u1ebft c\u00f3 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ch\u1ea5t trung h\u00f2a hay kh\u00f4ng, li\u1ec7u c\u1ea7n ph\u1ea3i ti\u1ebfn h\u00e0nh c\u00e1ch ly \u0111\u1ed3ng th\u1eddi hay kh\u00f4ng v\u00e0 c\u00e1ch ki\u1ec3m tra ch\u1ecdn l\u1ecdc \u1edf ph\u00eda th\u01b0\u1ee3ng ngu\u1ed3n s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n

    B\u00e0i vi\u1ebft li\u00ean quan: Aptomat t\u00e9p 3 pha (MCB 3 pha)<\/a> Ph\u00e2n t\u00edch bao g\u1ed3m c\u1ea5u h\u00ecnh t\u01b0\u01a1ng t\u1ef1 theo g\u00f3c \u0111\u1ed9 d\u1ef1a tr\u00ean \u0111\u1ecbnh ngh\u0129a.<\/p>\n

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

    M\u1ed9t c\u1ea7u ng\u1eaft \u0111i\u1ec7n 3 c\u1ef1c 100 A \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2u?<\/h3>\n

    C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb c\u1ea5p ngu\u1ed3n ba pha, b\u1ea3ng ph\u00e2n ph\u1ed1i nh\u1ecf v\u00e0 c\u00e1c m\u1ea1ch thi\u1ebft b\u1ecb trong ph\u1ea1m vi \u0111i\u1ec7n \u00e1p v\u00e0 c\u1ea5p \u0111\u1ed9 l\u1ed7i c\u1ee7a thi\u1ebft b\u1ecb. \u1ee8ng d\u1ee5ng ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c quy \u0111\u1ecbnh c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng v\u00e0 c\u00e1c gi\u1edbi h\u1ea1n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n

    C\u00f3 ph\u1ea3i \u0111\u01b0\u1eddng cong C lu\u00f4n ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9ng c\u01a1 kh\u00f4ng?<\/h3>\n

    Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady. \u0110\u01b0\u1eddng cong C c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng d\u00f2ng \u0111i\u1ec7n v\u00e0o v\u1eeba ph\u1ea3i, nh\u01b0ng vi\u1ec7c b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 th\u01b0\u1eddng c\u1ea7n m\u1ed9t b\u1ed9 b\u1ea3o v\u1ec7 chuy\u00ean d\u1ee5ng v\u00e0 ph\u1ed1i h\u1ee3p \u0111i\u1ec1u ch\u1ec9nh t\u1ea3i qu\u00e1 t\u1ea3i. S\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng ho\u1eb7c ghi nh\u1eadn.<\/p>\n

    C\u00f3 ph\u1ea3i m\u1ed9t c\u00f4ng t\u1eafc MCB 3 c\u1ef1c c\u00f3 th\u1ec3 chuy\u1ec3n sang v\u1ecb th\u1ebf trung t\u00ednh kh\u00f4ng?<\/h3>\n

    Thi\u1ebft b\u1ecb ba c\u1ef1c ti\u00eau chu\u1ea9n s\u1ebd m\u1edf c\u00e1c pha \u0111i\u1ec7n. N\u1ebfu c\u1ea7n chuy\u1ec3n \u0111\u1ed5i pha trung t\u00ednh, h\u00e3y ch\u1ec9 \u0111\u1ecbnh ki\u1ec3u k\u1ebft n\u1ed1i b\u1ed1n c\u1ef1c ho\u1eb7c k\u1ebft n\u1ed1i li\u00ean k\u1ebft ch\u00ednh x\u00e1c.<\/p>\n

    C\u00e1ch l\u1eafp \u0111\u1eb7t c\u1ea7u ch\u00ec DIN-rail l\u00e0 nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

    \u0110\u1eb7t n\u00f3 tr\u00ean \u0111\u01b0\u1eddng ray \u0111\u00e3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea, quan s\u00e1t c\u00e1c d\u1ea5u hi\u1ec7u \u0111\u01b0\u1eddng ray\/t\u1ea3i tr\u1ecdng, th\u1eaft ch\u1eb7t c\u00e1c \u0111\u1ea7u tr\u1ee5c theo h\u01b0\u1edbng d\u1eabn v\u00e0 gi\u1eef kho\u1ea3ng c\u00e1ch ph\u00f9 h\u1ee3p. Vi\u1ec7c v\u1eadn h\u00e0nh bao g\u1ed3m c\u00e1c b\u00e0i ki\u1ec3m tra v\u1ec1 \u0111i\u1ec7n c\u1ef1c v\u00e0 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

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