{"id":1724,"date":"2026-09-05T01:36:31","date_gmt":"2026-09-05T01:36:31","guid":{"rendered":"https:\/\/benlongkj.com\/?p=1724"},"modified":"2026-09-05T01:36:34","modified_gmt":"2026-09-05T01:36:34","slug":"difference-between-thermal-and-magnetic-trip","status":"publish","type":"post","link":"https:\/\/benlongkj.com\/vi\/blog\/difference-between-thermal-and-magnetic-trip\/","title":{"rendered":"Ng\u1eaft Nhi\u1ec7t so v\u1edbi Ng\u1eaft T\u1eeb: C\u00e1ch M\u1ed9t B\u1ed9 Ng\u1eaft M\u1ea1ch Th\u1ef1c S\u1ef1 B\u1ea3o V\u1ec7 M\u1ed9t M\u1ea1ch \u0110i\u1ec7n"},"content":{"rendered":"

B\u00ean trong m\u1ed7i b\u1ed9 ng\u1eaft m\u1ea1ch thu nh\u1ecf (MCB), kh\u00f4ng ch\u1ec9 c\u00f3 m\u1ed9t m\u00e0 l\u00e0 hai c\u01a1 ch\u1ebf b\u1ea3o v\u1ec7 \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng ch\u1ed1ng l\u1ea1i c\u00e1c lo\u1ea1i l\u1ed7i kh\u00e1c nhau. Vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c \u00fd ngh\u0129a c\u1ee7a ng\u1eaft nhi\u1ec7t v\u00e0 ng\u1eaft t\u1eeb s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch trong vi\u1ec7c gi\u1eef an to\u00e0n cho t\u00f2a nh\u00e0, v\u00e0 \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p nh\u1ea5t t\u1eeb ng\u01b0\u1eddi ti\u00eau d\u00f9ng, th\u1ee3 \u0111i\u1ec7n v\u00e0 c\u00e1c ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nh\u00e0 m\u00e1y.<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd gi\u1ea3i th\u00edch m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n c\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n c\u1ee7a ng\u1eaft nhi\u1ec7t v\u00e0 ng\u1eaft t\u1eeb<\/strong>, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang, v\u00e0 c\u00e1ch c\u00e1c c\u00f4ng ty ki\u1ec3m tra c\u00e1c ng\u1eaft n\u00e0y b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u chu\u1ea9n nhi\u1ec7t v\u00e0 ki\u1ec3m tra ng\u1eaft t\u1eeb tr\u01b0\u1edbc khi b\u1ea5t k\u1ef3 b\u1ed9 ng\u1eaft n\u00e0o \u0111\u01b0\u1ee3c xu\u1ea5t x\u01b0\u1edfng t\u1eeb nh\u00e0 m\u00e1y. H\u01b0\u1edbng d\u1eabn c\u0169ng s\u1ebd \u0111\u1ec1 c\u1eadp c\u00e1ch Benlong Automation s\u1ea3n xu\u1ea5t c\u00e1c h\u1ec7 th\u1ed1ng th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t MCB v\u00e0 MCCB tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n

\"\"<\/p>\n

Ng\u1eaft Nhi\u1ec7t c\u0169ng nh\u01b0 Ng\u1eaft T\u1eeb<\/h2>\n

C\u00f3 hai h\u1ec7 th\u1ed1ng ng\u1eaft kh\u00e1c nhau \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch nhi\u1ec7t-t\u1eeb. Ph\u1ea7n ng\u1eaft nhi\u1ec7t gi\u00fap b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 t\u1ea3i. Thu\u1eadt ng\u1eef qu\u00e1 t\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2y v\u00ec d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t m\u1ee9c nh\u01b0ng kh\u00f4ng nguy hi\u1ec3m \u0111\u1ebfn m\u1ee9c g\u00e2y h\u01b0 h\u1ea1i. Ph\u1ea7n ng\u1eaft t\u1eeb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi ng\u1eafn m\u1ea1ch. M\u1ed7i b\u1ed9 ng\u1eaft m\u1ea1ch thu nh\u1ecf \u0111\u1ec1u c\u00f3 c\u01a1 ch\u1ebf ng\u1eaft gi\u00fap v\u1eadn h\u00e0nh b\u1ed9 ng\u1eaft m\u1ea1ch an to\u00e0n.<\/p>\n

C\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 nh\u1edb v\u1ec1 ng\u1eaft nhi\u1ec7t<\/strong> so v\u1edbi ng\u1eaft t\u1eeb l\u00e0 th\u00f4ng qua t\u1ed1c \u0111\u1ed9. Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ng\u1eaft nhi\u1ec7t ch\u1eadm v\u00ec kh\u00f4ng c\u00f3 l\u00fd do \u0111\u1ec3 h\u00e0nh \u0111\u1ed9ng kh\u00e1c trong tr\u01b0\u1eddng h\u1ee3p qu\u00e1 t\u1ea3i nh\u1ecf \u2014 vi\u1ec7c c\u00f3 qu\u00e1 t\u1ea3i kh\u00f4ng t\u1ea1o th\u00e0nh t\u00ecnh tr\u1ea1ng kh\u1ea9n c\u1ea5p. Chuy\u1ec3n \u0111\u1ed9ng li\u00ean quan \u0111\u1ebfn ng\u1eaft t\u1eeb l\u00e0 ngay l\u1eadp t\u1ee9c trong ph\u1ea1m vi mili gi\u00e2y.<\/p>\n

Ng\u1eaft Nhi\u1ec7t L\u00e0 G\u00ec? (B\u1ea3o V\u1ec7 Qu\u00e1 T\u1ea3i)<\/h2>\n

C\u00e1i ng\u1eaft nhi\u1ec7t<\/strong> \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean m\u1ed9t d\u1ea3i kim lo\u1ea1i k\u00e9p \u2014 hai kim lo\u1ea1i \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi nhau v\u00e0 gi\u00e3n n\u1edf v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau khi b\u1ecb nung n\u00f3ng. N\u1ebfu d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 c\u00f4ng su\u1ea5t c\u1ee7a b\u1ed9 ng\u1eaft v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n trong th\u1eddi gian d\u00e0i, d\u1ea3i kim lo\u1ea1i s\u1ebd b\u1ecb nung n\u00f3ng, cong v\u00eanh v\u00e0 cu\u1ed1i c\u00f9ng k\u00edch ho\u1ea1t c\u01a1 ch\u1ebf m\u1edf m\u1ea1ch. D\u00f2ng \u0111i\u1ec7n c\u00e0ng cao, d\u1ea3i kim lo\u1ea1i cong c\u00e0ng nhanh, \u0111\u00e2y l\u00e0 \u0111i\u1ec3m m\u00e0 b\u1ed9 ng\u1eaft c\u00f3 \u0111\u1eb7c t\u00ednh ph\u1ea3n h\u1ed3i ng\u01b0\u1ee3c th\u1eddi gian \u0111\u1ed9c \u0111\u00e1o: khi c\u00f3 qu\u00e1 t\u1ea3i d\u00f2ng \u0111i\u1ec7n nh\u1ecf, b\u1ed9 ng\u1eaft kh\u00f4ng ng\u1eaft ngay l\u1eadp t\u1ee9c, trong khi v\u1edbi qu\u00e1 t\u1ea3i l\u1edbn, b\u1ed9 ng\u1eaft ph\u1ea3n \u1ee9ng g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f3 \u0111\u1ed9 tr\u1ec5.<\/p>\n

Ph\u1ea3n \u1ee9ng ch\u1eadm nh\u01b0 v\u1eady ho\u1ea1t \u0111\u1ed9ng r\u1ea5t t\u1ed1t cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p qu\u00e1 t\u1ea3i. Khi m\u1ed9t m\u1ea1ch \u0111i\u1ec7n gia \u0111\u00ecnh c\u00f3 d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 m\u1ee9c cho ph\u00e9p v\u00ec nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng s\u1eed d\u1ee5ng \u0111i\u1ec7n \u0111\u1ed3ng th\u1eddi, kh\u00f4ng ph\u1ea3i l\u00e0 t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p v\u00ec d\u00e2y d\u1eabn kh\u00f4ng n\u00ean b\u1ecb qu\u00e1 nhi\u1ec7t. Ng\u1eaft nhi\u1ec7t cho ph\u00e9p m\u1ed9t \u0111\u1ee3t t\u0103ng d\u00f2ng ng\u1eafn nh\u01b0 d\u00f2ng kh\u1edfi \u0111\u1ed9ng khi m\u00e1y ph\u00e1t \u0111i\u1ec7n b\u1eaft \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng trong khi v\u1eabn b\u1ea3o v\u1ec7 d\u00e2y kh\u1ecfi qu\u00e1 t\u1ea3i d\u00f2ng \u0111i\u1ec7n k\u00e9o d\u00e0i. Th\u00f4ng th\u01b0\u1eddng, tr\u01b0\u1eddng h\u1ee3p n\u00e0y x\u1ea3y ra trong kho\u1ea3ng th\u1eddi gian t\u1eeb v\u00e0i ph\u1ea7n gi\u00e2y \u0111\u1ebfn nhi\u1ec1u ph\u00fat t\u00f9y thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 qu\u00e1 t\u1ea3i.<\/p>\n

D\u1ef1a v\u00e0o nhi\u1ec7t c\u00f3 nh\u1eefng t\u00e1c \u0111\u1ed9ng nh\u1ea5t \u0111\u1ecbnh nh\u01b0 t\u1ea7m quan tr\u1ecdng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng kh\u00ed xung quanh. M\u1ed9t d\u1ea3i kim lo\u1ea1i k\u00e9p \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng tr\u00ean s\u00e0n nh\u00e0 m\u00e1y n\u00f3ng s\u1ebd u\u1ed1n cong ngay c\u1ea3 tr\u01b0\u1edbc khi c\u00f9ng m\u1ed9t d\u1ea3i tr\u00ean s\u00e0n nh\u00e0 m\u00e1y m\u00e1t m\u1ebb, \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i hi\u1ec7u chu\u1ea9n ch\u00ednh x\u00e1c thi\u1ebft b\u1ecb trong \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m so\u00e1t trong khi m\u1ed7i thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u bao g\u1ed3m b\u00f9 nhi\u1ec7t \u0111\u1ed9. Ngo\u00e0i ra, m\u1ee9c nhi\u1ec7t ng\u1eaft \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 m\u1ed9t d\u1ea3i, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb \u0111\u01a1n l\u1ebb; \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ti\u00eau chu\u1ea9n ch\u1ea5p thu\u1eadn kho\u1ea3ng th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 nh\u1eefng thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 b\u00ecnh th\u01b0\u1eddng kh\u00f4ng bi\u1ebfn m\u1ed9t b\u1ed9 ng\u1eaft t\u1ed1t th\u00e0nh m\u1ed9t b\u1ed9 ng\u1eaft l\u1ed7i.<\/p>\n

Ng\u1eaft t\u1eeb l\u00e0 g\u00ec? (B\u1ea3o v\u1ec7 ng\u1eafn m\u1ea1ch)<\/h2>\n

C\u00e1i ng\u1eaft t\u1eeb<\/strong> ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd ho\u00e0n to\u00e0n kh\u00e1c: \u0111i\u1ec7n t\u1eeb. M\u1ed9t cu\u1ed9n d\u00e2y b\u00ean trong b\u1ed9 ng\u1eaft t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb t\u01b0\u01a1ng \u1ee9ng v\u1edbi l\u01b0\u1ee3ng d\u00f2ng \u0111i\u1ec7n \u0111i qua n\u00f3. Khi d\u00f2ng \u0111i\u1ec7n b\u00ecnh th\u01b0\u1eddng, tr\u01b0\u1eddng t\u1eeb y\u1ebfu v\u00e0 kh\u00f4ng c\u00f3 h\u00e0nh \u0111\u1ed9ng x\u1ea3y ra. Tuy nhi\u00ean, khi m\u1ed9t ng\u1eafn m\u1ea1ch g\u1eedi m\u1ed9t l\u01b0\u1ee3ng l\u1edbn d\u00f2ng \u0111i\u1ec7n qua \u2014 th\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb \u0111\u1ecbnh m\u1ee9c nhi\u1ec1u l\u1ea7n \u2014 ng\u01b0\u1ee1ng t\u1eeb tr\u1edf n\u00ean \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 \u0111\u1ea9y m\u1ed9t b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, k\u00edch ho\u1ea1t b\u1ed9 ng\u1eaft g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c.<\/p>\n

V\u00ec ng\u1eafn m\u1ea1ch l\u00e0 m\u1ed9t t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p th\u1ef1c s\u1ef1, n\u00f3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng mili gi\u00e2y, thay v\u00ec gi\u00e2y. Kh\u00f4ng c\u00f3 \u0111\u1ed9 tr\u1ec5 v\u00e0 kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng cong th\u1eddi gian ngh\u1ecbch \u0111\u1ea3o nh\u1eb9 nh\u00e0ng trong ch\u1ebf \u0111\u1ed9 t\u1ee9c th\u1eddi. Ngay khi d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng t\u1eeb, b\u1ed9 ng\u1eaft m\u1edf nhanh nh\u1ea5t c\u00f3 th\u1ec3 theo c\u01a1 ch\u1ebf cho ph\u00e9p. \u0110\u00e2y l\u00e0 c\u01a1 ch\u1ebf ng\u0103n ng\u1eeba ch\u00e1y v\u00e0 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb t\u1eeb th\u1eddi \u0111i\u1ec3m s\u1ef1 c\u1ed1 m\u1ea1ch l\u00e0m gi\u1ea3m \u0111i\u1ec7n tr\u1edf g\u1ea7n nh\u01b0 b\u1eb1ng kh\u00f4ng v\u00e0 l\u00e0m t\u0103ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ebfn m\u1ee9c nguy hi\u1ec3m.<\/p>\n

Ng\u01b0\u1ee1ng t\u1eeb \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh trong thi\u1ebft k\u1ebf v\u00e0 l\u00e0 y\u1ebfu t\u1ed1 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng cong ng\u1eaft c\u1ee7a b\u1ed9 ng\u1eaft. N\u1ebfu n\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7t qu\u00e1 th\u1ea5p, b\u1ed9 ng\u1eaft s\u1ebd ng\u1eaft m\u1ed7i khi \u0111\u1ed9ng c\u01a1 l\u1ea5y d\u00f2ng kh\u1edfi \u0111\u1ed9ng l\u1edbn; n\u1ebfu qu\u00e1 cao, n\u00f3 s\u1ebd ch\u1eadm tr\u1ec5 khi x\u1ea3y ra l\u1ed7i. Do \u0111\u00f3, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111i\u1ec1u ch\u1ec9nh cu\u1ed9n d\u00e2y v\u00e0 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng theo b\u1ed9i s\u1ed1 c\u1ee7a d\u00f2ng \u0111\u1ecbnh m\u1ee9c v\u00e0 sau \u0111\u00f3 ki\u1ec3m tra tr\u00ean b\u00e0n th\u1eed nghi\u1ec7m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ed9 ng\u1eaft ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi \u0111\u00f3.<\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa ng\u1eaft nhi\u1ec7t v\u00e0 ng\u1eaft t\u1eeb<\/h2>\n

\u0110\u1eb7t hai lo\u1ea1i c\u1ea1nh nhau l\u00e0m n\u1ed5i b\u1eadt s\u1ef1 t\u01b0\u01a1ng ph\u1ea3n. Ch\u00fang ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c l\u1ed7i kh\u00e1c nhau, tr\u00ean c\u00e1c kho\u1ea3ng th\u1eddi gian kh\u00e1c nhau, s\u1eed d\u1ee5ng c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd kh\u00e1c nhau \u2014 nh\u01b0ng ch\u00fang c\u00f9ng t\u1ed3n t\u1ea1i trong m\u1ed9t b\u1ed9 ng\u1eaft v\u00e0 chia s\u1ebb c\u00f9ng m\u1ed9t c\u1eb7p ti\u1ebfp \u0111i\u1ec3m, \u0111\u00f3 l\u00e0 l\u00fd do thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch nhi\u1ec7t-t\u1eeb.<\/p>\n\n\n\n\n\n\n\n\n\n
Kh\u00eda c\u1ea1nh<\/th>\nNg\u1eaft nhi\u1ec7t<\/th>\nNg\u1eaft t\u1eeb<\/th>\n<\/tr>\n<\/thead>\n
B\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i<\/td>\nQu\u00e1 t\u1ea3i (d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 k\u00e9o d\u00e0i)<\/td>\nNg\u1eafn m\u1ea1ch (d\u00f2ng \u0111i\u1ec7n t\u0103ng \u0111\u1ed9t ng\u1ed9t)<\/td>\n<\/tr>\n
Nguy\u00ean l\u00fd v\u1eadt l\u00fd<\/td>\nD\u1ea3i kim lo\u1ea1i k\u00e9p (nhi\u1ec7t)<\/td>\nCu\u1ed9n d\u00e2y \u0111i\u1ec7n t\u1eeb \/ solenoid<\/td>\n<\/tr>\n
T\u1ed1c \u0111\u1ed9 ph\u1ea3n \u1ee9ng<\/td>\nT\u1eeb v\u00e0i gi\u00e2y \u0111\u1ebfn v\u00e0i ph\u00fat<\/td>\nMili gi\u00e2y<\/td>\n<\/tr>\n
D\u00f2ng \u0111i\u1ec7n ng\u1eaft \u0111i\u1ec3n h\u00ecnh<\/td>\nKho\u1ea3ng 1.13\u20131.45\u00d7 \u0111\u1ecbnh m\u1ee9c<\/td>\nKho\u1ea3ng 3\u201320\u00d7 \u0111\u1ecbnh m\u1ee9c<\/td>\n<\/tr>\n
H\u00e0nh vi<\/td>\nTh\u1eddi gian ngh\u1ecbch \u0111\u1ea3o; ch\u1eadm h\u01a1n v\u1edbi qu\u00e1 t\u1ea3i nh\u1ecf<\/td>\nG\u1ea7n nh\u01b0 t\u1ee9c th\u1eddi khi v\u01b0\u1ee3t ng\u01b0\u1ee1ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u1ed9t \u0111i\u1ec3m g\u00e2y nh\u1ea7m l\u1eabn v\u00f4 t\u1eadn, v\u00ec v\u1eady \u0111\u00e1ng \u0111\u1ec3 n\u00f3i r\u00f5: c\u00e1c \u0111\u01b0\u1eddng cong B, C v\u00e0 D in tr\u00ean MCB ch\u1ec9 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn d\u1ea3i ng\u1eaft t\u1eeb (t\u1ee9c th\u1eddi) \u2014 kh\u00f4ng ph\u1ea3i ph\u1ea3n \u1ee9ng qu\u00e1 t\u1ea3i nhi\u1ec7t.<\/span> B\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u01b0\u1eddng cong B ng\u1eaft m\u1ea1ch b\u1eb1ng t\u1eeb t\u00ednh \u1edf kho\u1ea3ng 3 \u0111\u1ebfn 5 l\u1ea7n d\u00f2ng \u0111\u1ecbnh m\u1ee9c, \u0111\u01b0\u1eddng cong C \u1edf kho\u1ea3ng 5 \u0111\u1ebfn 10 l\u1ea7n, v\u00e0 \u0111\u01b0\u1eddng cong D \u1edf kho\u1ea3ng 10 \u0111\u1ebfn 20 l\u1ea7n. H\u00e0nh vi qu\u00e1 t\u1ea3i nhi\u1ec7t c\u1ee7a ch\u00fang v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 gi\u1ed1ng nhau; \u0111i\u1ec3m kh\u00e1c bi\u1ec7t l\u00e0 \u0111\u1ed9 nh\u1ea1y ng\u1eafn m\u1ea1ch. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u1ea1ch \u0111\u1ed9ng c\u01a1 d\u1ec5 b\u1ecb d\u00f2ng kh\u1edfi \u0111\u1ed9ng l\u1edbn s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong C ho\u1eb7c D thay v\u00ec B, v\u00ec B s\u1ebd g\u00e2y ng\u1eaft m\u1ea1ch phi\u1ec1n to\u00e1i m\u1ed7i khi \u0111\u1ed9ng c\u01a1 kh\u1edfi \u0111\u1ed9ng.<\/p>\n

\"\"<\/p>\n

C\u00e1ch Nh\u00e0 s\u1ea3n xu\u1ea5t Ki\u1ec3m tra Ng\u1eaft Nhi\u1ec7t: Hi\u1ec7u chu\u1ea9n Nhi\u1ec7t<\/h2>\n

Hi\u1ec7u chu\u1ea9n nhi\u1ec7t<\/strong> l\u00e0 quy tr\u00ecnh t\u1ea1i nh\u00e0 m\u00e1y \u0111\u1ec3 x\u00e1c minh v\u00e0 \u0111i\u1ec1u ch\u1ec9nh ch\u00ednh x\u00e1c ng\u1eaft qu\u00e1 t\u1ea3i sao cho m\u1ed7i b\u1ed9 ng\u1eaft m\u1ea1ch ng\u1eaft trong kho\u1ea3ng th\u1eddi gian ti\u00eau chu\u1ea9n cho ph\u00e9p. Theo IEC 60898-1, m\u1ed9t b\u00e0n th\u1eed \u00e1p d\u1ee5ng hai d\u00f2ng \u0111i\u1ec7n ch\u00ednh: 1,13 l\u1ea7n d\u00f2ng \u0111\u1ecbnh m\u1ee9c, t\u1ea1i \u0111\u00f3 b\u1ed9 ng\u1eaft kh\u00f4ng \u0111\u01b0\u1ee3c ng\u1eaft trong th\u1eddi gian quy \u01b0\u1edbc, v\u00e0 1,45 l\u1ea7n d\u00f2ng \u0111\u1ecbnh m\u1ee9c, t\u1ea1i \u0111\u00f3 b\u1ed9 ng\u1eaft ph\u1ea3i ng\u1eaft trong th\u1eddi gian cho ph\u00e9p. N\u1ebfu th\u1eddi gian ng\u1eaft \u0111o \u0111\u01b0\u1ee3c n\u1eb1m ngo\u00e0i kho\u1ea3ng n\u00e0y, k\u1ef9 thu\u1eadt vi\u00ean s\u1ebd \u0111i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed d\u1ea3i kim lo\u1ea1i k\u00e9p v\u00e0 th\u1eed l\u1ea1i cho \u0111\u1ebfn khi n\u1eb1m trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n

Benlong\u2019s b\u00e0n hi\u1ec7u chu\u1ea9n ng\u1eaft nhi\u1ec7t b\u00e1n t\u1ef1 \u0111\u1ed9ng<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c cho nhi\u1ec7m v\u1ee5 n\u00e0y. N\u00f3 \u00e1p d\u1ee5ng d\u00f2ng qu\u00e1 t\u1ea3i \u0111\u00e3 l\u1eadp tr\u00ecnh \u2014 l\u00ean \u0111\u1ebfn 200A \u2014 \u0111o th\u1eddi gian ng\u1eaft t\u1ef1 \u0111\u1ed9ng v\u00e0 hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 \u0111\u1ea1t ho\u1eb7c kh\u00f4ng \u0111\u1ea1t so v\u1edbi kho\u1ea3ng th\u1eddi gian IEC tr\u00ean m\u00e0n h\u00ecnh c\u1ea3m \u1ee9ng, trong khi c\u01a1 ch\u1ebf chuy\u1ec3n \u0111\u1ed5i cho ph\u00e9p m\u1ed9t b\u00e0n th\u1eed x\u1eed l\u00fd nhi\u1ec1u v\u1ecf MCB kh\u00e1c nhau m\u00e0 kh\u00f4ng c\u1ea7n \u0111i d\u00e2y l\u1ea1i. V\u00ec d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0 \u0111o th\u1eddi gian t\u1ef1 \u0111\u1ed9ng thay v\u00ec do ng\u01b0\u1eddi v\u1eadn h\u00e0nh d\u00f9ng \u0111\u1ed3ng h\u1ed3 b\u1ea5m gi\u1edd, k\u1ebft qu\u1ea3 l\u1eb7p l\u1ea1i cao h\u01a1n nhi\u1ec1u v\u00e0 m\u1ed7i l\u1ea7n \u0111\u1ecdc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xu\u1ea5t ra \u0111\u1ec3 l\u01b0u h\u1ed3 s\u01a1 ch\u1ea5t l\u01b0\u1ee3ng. \u0110\u00e2y l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch ch\u1ec9 tr\u00f4ng c\u00f3 v\u1ebb \u0111\u00fang v\u00e0 m\u1ed9t b\u1ed9 \u0111\u01b0\u1ee3c ch\u1ee9ng minh ng\u1eaft \u0111\u00fang th\u1eddi gian.<\/p>\n

C\u00e1ch Nh\u00e0 s\u1ea3n xu\u1ea5t Ki\u1ec3m tra Ng\u1eaft T\u1eeb: Ki\u1ec3m tra Ng\u1eaft T\u1eeb<\/h2>\n

C\u00e1i magnetic trip test<\/strong> ki\u1ec3m tra n\u1eeda c\u00f2n l\u1ea1i c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch: ph\u1ea3n \u1ee9ng ng\u1eafn m\u1ea1ch t\u1ee9c th\u1eddi. \u1ede \u0111\u00e2y, m\u1ed9t b\u00e0n th\u1eed cung c\u1ea5p m\u1ed9t xung d\u00f2ng \u0111i\u1ec7n cao ng\u1eafn \u2014 th\u01b0\u1eddng l\u00e0 5, 7,5 ho\u1eb7c 10 l\u1ea7n d\u00f2ng \u0111\u1ecbnh m\u1ee9c, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u01b0\u1eddng cong ng\u1eaft \u0111\u01b0\u1ee3c x\u00e1c minh \u2014 v\u00e0 \u0111o s\u1ed1 mili gi\u00e2y b\u1ed9 ng\u1eaft m\u1ea5t \u0111\u1ec3 m\u1edf m\u1ea1ch. Xung ph\u1ea3i c\u00f3 \u0111\u1ed9 t\u0103ng nhanh v\u00e0 s\u1ea1ch \u0111\u1ec3 th\u1eddi gian ng\u1eaft \u0111o \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c b\u1ed9 ng\u1eaft ch\u1ee9 kh\u00f4ng ph\u1ea3i thi\u1ebft b\u1ecb th\u1eed.<\/p>\n

Benlong\u2019s b\u00e0n th\u1eed ng\u1eaft t\u1eeb b\u00e1n t\u1ef1 \u0111\u1ed9ng<\/a> t\u1ea1o ra c\u00e1c b\u1ed9i s\u1ed1 d\u00f2ng \u0111\u1ecbnh m\u1ee9c c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh, l\u00ean \u0111\u1ebfn v\u00e0i ngh\u00ecn ampe \u0111\u1ec9nh, v\u00e0 \u0111o th\u1eddi gian ng\u1eaft \u0111\u1ebfn mili gi\u00e2y, v\u1edbi c\u00f9ng \u0111i\u1ec1u khi\u1ec3n m\u00e0n h\u00ecnh c\u1ea3m \u1ee9ng v\u00e0 ghi d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng nh\u01b0 b\u00e0n th\u1eed nhi\u1ec7t. V\u00ec h\u1ec7 s\u1ed1 d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 ch\u1ecdn tr\u00ean giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng HMI, m\u1ed9t b\u00e0n th\u1eed c\u00f3 th\u1ec3 x\u00e1c minh c\u00e1c b\u1ed9 ng\u1eaft \u0111\u01b0\u1eddng cong B, C v\u00e0 D ch\u1ec9 b\u1eb1ng c\u00e1ch ch\u1ecdn c\u00e0i \u0111\u1eb7t ph\u00f9 h\u1ee3p. M\u1ed9t b\u00e0i ki\u1ec3m tra \u0111i\u1ec3n h\u00ecnh ch\u1ec9 m\u1ea5t v\u00e0i gi\u00e2y cho m\u1ed7i b\u1ed9 ng\u1eaft, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng khi d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ph\u1ea3i ki\u1ec3m tra h\u00e0ng ngh\u00ecn thi\u1ebft b\u1ecb m\u1ed7i ng\u00e0y m\u00e0 kh\u00f4ng tr\u1edf th\u00e0nh n\u00fat th\u1eaft c\u1ed5 chai.<\/p>\n

L\u00e0m R\u00f5 M\u1ed9t S\u1ed1 Hi\u1ec3u L\u1ea7m Th\u01b0\u1eddng G\u1eb7p<\/h2>\n

Th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf cho nhau, c\u00e1c th\u00e0nh ph\u1ea7n MCB v\u00e0 RCCB th\u1ef1c s\u1ef1 kh\u00e1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u00ednh n\u0103ng c\u1ee7a ch\u00fang. \u0110i\u1ec1u \u0111\u1ea7u ti\u00ean c\u1ea7n nh\u1edb khi ph\u00e2n bi\u1ec7t gi\u1eefa ch\u00fang l\u00e0 MCB kh\u00f4ng cung c\u1ea5p b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i s\u1ed1c \u0111i\u1ec7n do r\u00f2 r\u1ec9 \u0111\u1ea5t \u2013 thay v\u00e0o \u0111\u00f3, \u0111\u00f3 l\u00e0 nhi\u1ec7m v\u1ee5 c\u1ee7a RCCB ho\u1eb7c ph\u1ea7n d\u00f2ng d\u01b0 c\u1ee7a RCBO, ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 \u0111\u1ea5t thay v\u00ec qu\u00e1 t\u1ea3i ho\u1eb7c ng\u1eafn m\u1ea1ch x\u1ea3y ra. C\u01a1 ch\u1ebf ng\u1eaft nhi\u1ec7t v\u00e0 t\u1eeb t\u00ednh ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng v\u00e0 thi\u1ebft b\u1ecb; ng\u01b0\u1ee3c l\u1ea1i, b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ee5c \u0111\u00edch \u0111\u00f3.<\/p>\n

M\u1ed9t \u0111i\u1ec1u kh\u00e1c c\u1ea7n l\u00e0m r\u00f5 l\u00e0 vi\u1ec7c ng\u1eaft m\u1ea1ch kh\u00f4ng bao gi\u1edd n\u00ean b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi s\u1ef1 c\u1ed1 c\u1ee7a c\u1ea7u dao. \u0110\u00f4i khi c\u1ea7u dao ng\u1eaft m\u1ea1ch l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c th\u1ef1c hi\u1ec7n t\u1ed1t nhi\u1ec7m v\u1ee5 c\u1ee7a n\u00f3. Do \u0111\u00f3, m\u1ed9t trong nh\u1eefng \u0111i\u1ec1u ch\u00ednh m\u00e0 c\u00e1c ph\u00f2ng ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3u \u0111\u01b0\u1ee3c l\u00e0 li\u1ec7u c\u1ea7u dao c\u00f3 ng\u1eaft m\u1ea1ch d\u01b0\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n d\u00f2ng \u0111i\u1ec7n th\u00edch h\u1ee3p v\u00e0 ho\u1ea1t \u0111\u1ed9ng trong khung th\u1eddi gian ph\u00f9 h\u1ee3p \u2013 kh\u00f4ng qu\u00e1 s\u1edbm g\u00e2y ra ng\u1eaft m\u1ea1ch phi\u1ec1n to\u00e1i c\u0169ng kh\u00f4ng qu\u00e1 ch\u1eadm \u0111\u1ec3 cho ph\u00e9p s\u1ef1 c\u1ed1 x\u1ea3y ra. Nh\u1edd hai \u0111i\u1ec3m n\u00e0y m\u00e0 vi\u1ec7c hi\u1ec7u chu\u1ea9n nhi\u1ec7t v\u00e0 ki\u1ec3m tra ng\u1eaft t\u1eeb t\u00ednh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.
\nH\u01a1n n\u1eefa, ch\u00fang ta n\u00ean nh\u1edb r\u1eb1ng \u0111\u1ecbnh m\u1ee9c c\u1ea7u dao (v\u00ed d\u1ee5, 16A ho\u1eb7c 32A) \u0111\u1ec1 c\u1eadp \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c t\u1ed1i \u0111a m\u00e0 c\u1ea7u dao c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c, nh\u01b0ng kh\u00f4ng li\u00ean quan \u0111\u1ebfn m\u1ee9c d\u00f2ng \u0111i\u1ec7n g\u00e2y ra ng\u1eaft m\u1ea1ch.<\/p>\n

T\u1ea1i sao c\u1ea3 hai b\u00e0i ki\u1ec3m tra \u0111\u1ec1u quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 an to\u00e0n<\/h2>\n

M\u1ed9t c\u1ea7u dao v\u01b0\u1ee3t qua m\u1ed9t trong c\u00e1c b\u00e0i ki\u1ec3m tra c\u00f3 th\u1ec3 nguy hi\u1ec3m h\u01a1n m\u1ed9t c\u1ea7u dao kh\u00f4ng v\u01b0\u1ee3t qua c\u1ea3 hai b\u00e0i ki\u1ec3m tra v\u00ec n\u00f3 t\u1ea1o ra c\u1ea3m gi\u00e1c an to\u00e0n gi\u1ea3 t\u1ea1o. C\u1ea7u dao c\u00f3 ph\u1ea3n \u1ee9ng t\u1eeb t\u00ednh ho\u00e0n h\u1ea3o nh\u01b0ng ph\u1ea3n \u1ee9ng nhi\u1ec7t b\u1ecb l\u1ed7i c\u00f3 th\u1ec3 g\u00e2y qu\u00e1 nhi\u1ec7t c\u00e1p n\u1ebfu ch\u1ecbu t\u1ea3i qu\u00e1 m\u1ee9c v\u1eeba ph\u1ea3i. M\u1ed9t c\u1ea7u dao kh\u00e1c c\u00f3 ph\u1ea3n \u1ee9ng nhi\u1ec7t ho\u00e0n h\u1ea3o, nh\u01b0ng ph\u1ea3n \u1ee9ng t\u1eeb t\u00ednh y\u1ebfu khi\u1ebfn n\u00f3 kh\u00f4ng th\u1ec3 ng\u1eaft m\u1ea1ch ng\u1eafn m\u1ea1ch k\u1ecbp th\u1eddi \u0111\u1ec3 tr\u00e1nh ch\u00e1y n\u1ed5. \u0110\u00e2y l\u00e0 l\u00fd do c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t trung th\u1ef1c ki\u1ec3m tra c\u1ea3 hai ph\u1ea3n \u1ee9ng cho m\u1ed7i l\u00f4 h\u00e0ng v\u00e0 th\u01b0\u1eddng cho m\u1ed7i thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t.<\/p>\n

C\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan \u2014 IEC 60898-1 cho c\u1ea7u dao gia \u0111\u00ecnh v\u00e0 IEC 60947-2 cho c\u1ea7u dao c\u00f4ng nghi\u1ec7p \u2014 quy \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u00e1c d\u00f2ng \u0111i\u1ec7n c\u1ea7n \u00e1p d\u1ee5ng v\u00e0 c\u00e1c kho\u1ea3ng th\u1eddi gian ng\u1eaft m\u1ea1ch \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn, v\u00e0 ch\u00fang l\u00e0 ti\u00eau chu\u1ea9n \u0111\u1ec3 nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn CE, UL ho\u1eb7c CB cho th\u1ecb tr\u01b0\u1eddng xu\u1ea5t kh\u1ea9u. \u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn \u0111\u1ea7y \u0111\u1ee7 h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c b\u00e0i ki\u1ec3m tra n\u00e0y ph\u00f9 h\u1ee3p trong m\u1ed9t ho\u1ea1t \u0111\u1ed9ng ch\u1ea5t l\u01b0\u1ee3ng ho\u00e0n ch\u1ec9nh, h\u01b0\u1edbng d\u1eabn c\u1ee7a Benlong v\u1ec1 nh\u1eefng g\u00ec m\u1ed9t ph\u00f2ng th\u00ed nghi\u1ec7m ki\u1ec3m tra MCB th\u1ef1c hi\u1ec7n<\/a> \u0111i qua to\u00e0n b\u1ed9 ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m tra v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1eb1ng sau n\u00f3.<\/p>\n

C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t xu\u1ea5t kh\u1ea9u s\u1ea3n ph\u1ea9m \u0111\u1ebfn c\u00e1c th\u1ecb tr\u01b0\u1eddng kh\u00f3 t\u00ednh nh\u01b0 ch\u00e2u \u00c2u, c\u00e1c qu\u1ed1c gia V\u00f9ng V\u1ecbnh, \u1ea4n \u0110\u1ed9 ho\u1eb7c M\u1ef9 Latinh bi\u1ebft r\u1eb1ng tu\u00e2n th\u1ee7 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m. Ng\u00e0y c\u00e0ng nhi\u1ec1u ng\u01b0\u1eddi mua y\u00eau c\u1ea7u d\u1eef li\u1ec7u v\u1ec1 c\u00e1c b\u00e0i ki\u1ec3m tra \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean t\u1eebng \u0111\u01a1n v\u1ecb, v\u00e0 n\u1ebfu x\u1ea3y ra s\u1ef1 c\u1ed1 trong th\u1ef1c t\u1ebf \u2014 v\u00ed d\u1ee5, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u00e1ng l\u1ebd ph\u1ea3i ng\u1eaft nh\u01b0ng l\u1ea1i kh\u00f4ng ng\u1eaft \u2014 nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi ki\u1ec3m to\u00e1n, thu h\u1ed3i ho\u1eb7c th\u1eadm ch\u00ed m\u1ea5t h\u1ee3p \u0111\u1ed3ng. Do \u0111\u00f3, vi\u1ec7c ki\u1ec3m tra nhi\u1ec7t v\u00e0 t\u1eeb t\u00ednh \u0111\u01b0\u1ee3c ghi ch\u00e9p nh\u1ea5t qu\u00e1n l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c b\u1ea3o hi\u1ec3m chi ph\u00ed th\u1ea5p cho nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ed9 ng\u1eaft m\u1ea1ch v\u00e0 kh\u00f4ng th\u1ec3 so s\u00e1nh v\u1edbi c\u00e1c chi ph\u00ed ph\u00e1t sinh khi v\u1eadn chuy\u1ec3n s\u1ea3n ph\u1ea9m \u0111\u1ebfn c\u00e1c th\u1ecb tr\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng v\u1ec1 hi\u1ec7u su\u1ea5t \u0111\u00fang \u0111\u1eafn c\u1ee7a ch\u00fang.<\/p>\n

\"\"<\/p>\n

T\u1eeb B\u00e0n Th\u00ed Nghi\u1ec7m \u0110\u1ebfn D\u00e2y Chuy\u1ec1n: T\u1ef1 \u0110\u1ed9ng H\u00f3a Ki\u1ec3m Tra Nhi\u1ec7t v\u00e0 T\u1eeb T\u00ednh<\/h2>\n

Trong tr\u01b0\u1eddng h\u1ee3p s\u1ea3n xu\u1ea5t v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p, ph\u00f2ng th\u00ed nghi\u1ec7m ho\u1eb7c nh\u00e0 m\u00e1y s\u1ebd th\u1ef1c hi\u1ec7n hi\u1ec7u chu\u1ea9n nhi\u1ec7t v\u00e0 ki\u1ec3m tra ng\u1eaft t\u1eeb b\u1eb1ng hai tr\u1ea1m l\u00e0m vi\u1ec7c b\u00e1n t\u1ef1 \u0111\u1ed9ng ri\u00eang bi\u1ec7t, n\u01a1i b\u1ed9 ng\u1eaft s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u00e0 l\u1ea5y ra kh\u1ecfi qu\u00e1 tr\u00ecnh ki\u1ec3m tra b\u1eb1ng tay. Khi s\u1ea3n l\u01b0\u1ee3ng t\u0103ng l\u00ean, hai b\u00e0i ki\u1ec3m tra n\u00e0y \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p th\u00e0nh m\u1ed9t d\u00e2y chuy\u1ec1n t\u1ef1 \u0111\u1ed9ng g\u1ecdi l\u00e0 b\u0103ng t\u1ea3i, trong \u0111\u00f3 c\u00e1c b\u1ed9 ng\u1eaft s\u1ebd \u0111\u01b0\u1ee3c di chuy\u1ec3n t\u1eeb tr\u1ea1m n\u00e0y sang tr\u1ea1m kh\u00e1c qua b\u0103ng t\u1ea3i, tr\u1ea3i qua c\u00e1c thao t\u00e1c sau: hi\u1ec7u chu\u1ea9n nhi\u1ec7t, ki\u1ec3m tra ng\u1eaft t\u1eeb, ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n c\u00e1ch \u0111i\u1ec7n, ho\u1ea1t \u0111\u1ed9ng b\u1eadt t\u1eaft c\u00f4ng t\u1eafc, sau \u0111\u00f3 ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 \u2014 t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u00e0 kh\u00f4ng c\u1ea7n x\u1eed l\u00fd th\u1ee7 c\u00f4ng t\u1eebng s\u1ea3n ph\u1ea9m.<\/p>\n

V\u1edbi ph\u01b0\u01a1ng ph\u00e1p t\u00edch h\u1ee3p, kh\u00f4ng ch\u1ec9 t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n m\u00e0 c\u00f2n c\u00f3 th\u1ec3 theo d\u00f5i nh\u1eefng g\u00ec \u0111ang di\u1ec5n ra v\u1edbi s\u1ea3n ph\u1ea9m. M\u1ed7i b\u1ed9 ng\u1eaft mang m\u1ed9t m\u00e3 v\u1ea1ch duy nh\u1ea5t cho ph\u00e9p truy xu\u1ea5t k\u1ebft qu\u1ea3 c\u00e1c b\u00e0i ki\u1ec3m tra \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n cho s\u1ea3n ph\u1ea9m \u0111\u00f3, t\u1eeb \u0111\u00f3 gi\u00fap nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1o c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u00e1c \u0111\u01a1n v\u1ecb \u0111\u00e3 b\u00e1n cho kh\u00e1ch h\u00e0ng kh\u00f4ng ch\u1ec9 c\u00f3 l\u1ecbch s\u1eed b\u00e1n h\u00e0ng m\u00e0 c\u00f2n cho ph\u00e9p theo d\u00f5i b\u1ea5t k\u1ef3 v\u1ea5n \u0111\u1ec1 n\u00e0o ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh s\u1ea3n ph\u1ea9m tr\u00ean th\u1ecb tr\u01b0\u1eddng. H\u01a1n n\u1eefa, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f2n gi\u00fap gi\u00e1m s\u00e1t qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t: n\u1ebfu c\u00f3 s\u1ef1 c\u1ed1 v\u1edbi b\u00e0n hi\u1ec7u chu\u1ea9n, v\u00ed d\u1ee5 nh\u01b0 th\u1eddi gian ng\u1eaft v\u01b0\u1ee3t qu\u00e1 m\u1ee9c y\u00eau c\u1ea7u cho ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u1eebng l\u1ea1i tr\u01b0\u1edbc khi ph\u1ea7n l\u1edbn c\u00e1c \u0111\u01a1n v\u1ecb xu\u1ea5t x\u01b0\u1edfng kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n c\u1ea7n thi\u1ebft.<\/p>\n

L\u1ef1a ch\u1ecdn thi\u1ebft l\u1eadp ph\u00f9 h\u1ee3p s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o kh\u1ed1i l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t v\u00e0 ng\u00e2n s\u00e1ch c\u00f3 s\u1eb5n. X\u01b0\u1edfng nh\u1ecf ho\u1eb7c ph\u00f2ng th\u00ed nghi\u1ec7m ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 h\u00e0i l\u00f2ng v\u1edbi hai tr\u1ea1m l\u00e0m vi\u1ec7c b\u00e1n t\u1ef1 \u0111\u1ed9ng, n\u01a1i k\u1ef9 thu\u1eadt vi\u00ean s\u1ebd th\u1ef1c hi\u1ec7n hi\u1ec7u chu\u1ea9n nhi\u1ec7t tr\u00ean m\u1ed9t b\u00e0n v\u00e0 ti\u1ebfn h\u00e0nh ki\u1ec3m tra ng\u1eaft t\u1eeb tr\u00ean b\u00e0n c\u00f2n l\u1ea1i. Nh\u00e0 s\u1ea3n xu\u1ea5t quy m\u00f4 trung b\u00ecnh th\u01b0\u1eddng ch\u1ecdn m\u1ed9t cell b\u00e1n t\u1ef1 \u0111\u1ed9ng v\u1edbi k\u1eb9p kh\u00ed n\u00e9n v\u00e0 ghi d\u1eef li\u1ec7u. Cu\u1ed1i c\u00f9ng, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t quy m\u00f4 l\u1edbn g\u1eedi s\u1ea3n ph\u1ea9m \u0111\u1ebfn nh\u1eefng kh\u00e1ch h\u00e0ng kh\u00f3 t\u00ednh s\u1ebd \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ef1 \u0111\u1ed9ng ho\u00e0n to\u00e0n cho quy tr\u00ecnh s\u1ea3n xu\u1ea5t h\u00e0ng ngh\u00ecn \u0111\u01a1n v\u1ecb m\u1ed7i ng\u00e0y, \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t ch\u1eb7t ch\u1ebd \u1edf m\u1ecdi giai \u0111o\u1ea1n c\u1ee7a quy tr\u00ecnh.<\/p>\n

K\u1ebft lu\u1eadn: C\u00f9ng M\u1ed9t B\u1ed9 Ng\u1eaft, Hai C\u00f4ng Vi\u1ec7c R\u1ea5t Kh\u00e1c Nhau<\/h2>\n

S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa ng\u1eaft nhi\u1ec7t v\u00e0 ng\u1eaft t\u1eeb n\u1eb1m \u1edf c\u00e1c l\u1ed7i m\u00e0 ch\u00fang b\u1ea3o v\u1ec7 c\u00e1c m\u1ea1ch \u0111i\u1ec7n. Ng\u1eaft nhi\u1ec7t b\u1ea3o v\u1ec7 kh\u1ecfi qu\u00e1 t\u1ea3i ch\u1eadm v\u00e0 d\u1ea7n d\u1ea7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng d\u1ea3i kim lo\u1ea1i k\u00e9p nh\u1ea1y nhi\u1ec7t v\u00e0 do \u0111\u00f3 c\u1ea7n th\u1eddi gian \u0111\u1ec3 ph\u1ea3n \u1ee9ng, tr\u00e1i ng\u01b0\u1ee3c v\u1edbi ng\u1eaft t\u1eeb, ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho c\u00e1c ng\u1eafn m\u1ea1ch t\u1ee9c th\u1eddi th\u00f4ng qua t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c \u0111i\u1ec7n t\u1eeb. C\u1ea3 hai lo\u1ea1i ng\u1eaft n\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch, tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf, v\u00e0 c\u1ea7n ph\u1ea3i v\u01b0\u1ee3t qua quy tr\u00ecnh ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 cho ng\u1eaft nhi\u1ec7t ho\u1eb7c ki\u1ec3m tra ng\u1eaft t\u1eeb, t\u01b0\u01a1ng \u1ee9ng, \u0111\u1ec3 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch.<\/p>\n

Benlong Automation gi\u1edbi thi\u1ec7u nhi\u1ec1u lo\u1ea1i b\u00e0n hi\u1ec7u chu\u1ea9n nhi\u1ec7t, thi\u1ebft b\u1ecb th\u1ef1c hi\u1ec7n ki\u1ec3m tra ng\u1eaft t\u1eeb, v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a ho\u00e0n ch\u1ec9nh d\u00e0nh cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ed9 ng\u1eaft m\u1ea1ch tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. H\u00e3y cung c\u1ea5p cho ch\u00fang t\u00f4i c\u00e1c m\u1eabu b\u1ed9 ng\u1eaft m\u1ea1ch v\u00e0 y\u00eau c\u1ea7u c\u0169ng nh\u01b0 ti\u00eau chu\u1ea9n m\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n, c\u00e1c k\u1ef9 s\u01b0 c\u1ee7a ch\u00fang t\u00f4i s\u1ebd \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p ki\u1ec3m tra t\u1ed1t nh\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n v\u00e0 \u0111\u01b0a ra \u0111\u00e1nh gi\u00e1 v\u1ec1 l\u1ee3i t\u1ee9c \u0111\u1ea7u t\u01b0 d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n

Huang Xiaolei | T\u1ef1 \u0111\u1ed9ng h\u00f3a Benlong<\/p>","protected":false},"excerpt":{"rendered":"

Inside every miniature circuit breaker (MCB), there are not one but two protection mechanisms that protect the system against different types of faults. Being able to grasp the meaning of thermal and magnetic trip will help you understand how a circuit breaker works in terms of keeping a building safe, and this is one of […]<\/p>\n","protected":false},"author":3,"featured_media":1725,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/posts\/1724","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/comments?post=1724"}],"version-history":[{"count":1,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/posts\/1724\/revisions"}],"predecessor-version":[{"id":1728,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/posts\/1724\/revisions\/1728"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/media\/1725"}],"wp:attachment":[{"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/media?parent=1724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/categories?post=1724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/benlongkj.com\/vi\/wp-json\/wp\/v2\/tags?post=1724"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}