{"id":2890,"date":"2026-08-22T21:53:11","date_gmt":"2026-08-22T13:53:11","guid":{"rendered":"https:\/\/sayoon-dc.com\/blog\/24v-dc-contactor-coil-current\/"},"modified":"2026-08-22T22:28:40","modified_gmt":"2026-08-22T14:28:40","slug":"dong-dien-cuon-day-cong-tac-to-24v-dc","status":"publish","type":"post","link":"https:\/\/sayoon-dc.com\/vi\/blog\/24v-dc-contactor-coil-current\/","title":{"rendered":"Nh\u1eefng l\u01b0u \u00fd n\u00e0o v\u1ec1 d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y c\u1ea7n quan t\u00e2m \u0111\u1ed1i v\u1edbi RFQ c\u1ee7a contactor DC 24V?"},"content":{"rendered":"
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Cho m\u1ed9t d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1 24v dc<\/strong> xem l\u1ea1i, sao ch\u00e9p phi\u00ean b\u1ea3n \u0111\u00e3 xu\u1ea5t b\u1ea3n c\u1ee7a m\u00f4 h\u00ecnh \u0111\u00e3 ch\u1ecdn C\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1<\/strong> ho\u1eb7c d\u00f2ng \u0111i\u1ec7n \u1edf 24 V DC, n\u00eau r\u00f5 li\u1ec7u gi\u00e1 tr\u1ecb h\u00fat v\u00e0 gi\u1eef c\u00f3 kh\u00e1c nhau hay kh\u00f4ng, \u0111\u1ed3ng th\u1eddi x\u00e1c nh\u1eadn r\u1eb1ng tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n, b\u1ed9 tri\u1ec7t ti\u00eau v\u00e0 bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n \u00e1p m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 t\u1ea3i \u0111\u00f3. B\u00e0i vi\u1ebft n\u00e0y ph\u00e1c th\u1ea3o c\u00e1c tr\u01b0\u1eddng RFQ m\u00e0 c\u00e1c nh\u00f3m thi\u1ebft k\u1ebf t\u1ee7 \u0111i\u1ec7n v\u00e0 ng\u01b0\u1eddi mua th\u1ef1c s\u1ef1 c\u1ea7n\u2014m\u00e0 kh\u00f4ng coi m\u1ed9t v\u00ed d\u1ee5 tr\u00ean m\u1ea1ng l\u00e0 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n ph\u1ed5 qu\u00e1t.<\/p>\n

B\u1ea1n s\u1ebd th\u1ea5y th\u1eddi \u0111i\u1ec3m cu\u1ed9n d\u00e2y DC ti\u00eau chu\u1ea9n c\u00f4ng b\u1ed1 c\u00f4ng su\u1ea5t h\u00fat v\u00e0 gi\u1eef ph\u00f9 h\u1ee3p, nh\u1eefng d\u00f2ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt n\u00e0o n\u1eb1m trong h\u1ed3 s\u01a1 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, c\u00e1ch so s\u00e1nh t\u1ea3i cu\u1ed9n d\u00e2y v\u1edbi \u0111\u1ecbnh m\u1ee9c c\u1ee7a b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, v\u00e0 n\u1ed9i dung c\u1ea7n g\u1eedi cho nh\u00e0 cung c\u1ea5p khi trang th\u00f4ng tin c\u00f4ng khai hi\u1ec3n th\u1ecb kho\u1ea3ng c\u00f4ng su\u1ea5t cu\u1ed9n d\u00e2y thay v\u00ec m\u1ed9t d\u00f2ng d\u00f2ng \u0111i\u1ec7n ti\u00eau \u0111\u1ec1 duy nh\u1ea5t.<\/p>\n

T\u1ea1i sao d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y c\u1ea7n c\u00f3 trong g\u00f3i RFQ<\/h2>\n

T\u1ea3i cu\u1ed9n d\u00e2y l\u00e0 gi\u00e1 \u0111i\u1ec7n \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng t\u01a1 t\u1eafc. M\u1ed7i Cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1 24 V DC<\/strong> Vi\u1ec7c \u0111\u00e1nh gi\u00e1 n\u00ean b\u1eaft \u0111\u1ea7u t\u1eeb t\u1ea3i \u0111\u00f3, ch\u1ee9 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o \u0111\u1ecbnh m\u1ee9c ampe c\u1ee7a m\u1ea1ch ch\u00ednh. N\u1ebfu y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) ch\u1ec9 n\u00eau d\u00f2ng \u0111i\u1ec7n c\u1ee7a m\u1ea1ch ch\u00ednh ho\u1eb7c c\u00e1c t\u1eeb \u201ccu\u1ed9n d\u00e2y 24 V DC\u201d, nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n v\u1eabn ph\u1ea3i \u0111o\u00e1n xem ng\u00f5 ra PLC, tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n r\u01a1-le ho\u1eb7c giao di\u1ec7n m\u00e1y c\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c \u0111\u00f3 hay kh\u00f4ng.<\/p>\n

L\u01b0u \u00fd v\u1ec1 t\u1ea3i cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng t\u1eeb quan tr\u1ecdng v\u00ec ba l\u00fd do th\u1ef1c t\u1ebf. N\u00f3 gi\u00fap \u0111\u1ecbnh c\u1ee1 ngu\u1ed3n \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ea5t k\u1ef3 c\u1ea7u ch\u00ec n\u1ed9i tuy\u1ebfn ho\u1eb7c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 n\u00e0o.<\/p>\n

N\u00f3 cho ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 bi\u1ebft li\u1ec7u nhu c\u1ea7u nh\u1eadn h\u00e0ng c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 m\u1ed9t giai \u0111o\u1ea1n \u0111\u1ea7u ra nh\u1ecf ngay c\u1ea3 khi nhu c\u1ea7u gi\u1eef h\u00e0ng c\u00f3 v\u1ebb khi\u00eam t\u1ed1n hay kh\u00f4ng. N\u00f3 bu\u1ed9c b\u1ea3n ghi c\u1ee7a h\u1ed9i \u0111\u1ed3ng ph\u1ea3i \u0111\u1eb7t t\u00ean l\u00e0 \u0111iot d\u1eadp \/ \u0111iot tri\u1ec7t ti\u00eau<\/strong>, bi\u1ebfn tr\u1edf, m\u00f4-\u0111un ti\u1ebft ki\u1ec7m, ho\u1eb7c t\u00f9y ch\u1ecdn l\u1eafp s\u1eb5n t\u1ea1i nh\u00e0 m\u00e1y tr\u01b0\u1edbc khi c\u1eaft \u0111\u1ed3ng.<\/p>\n

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T\u1eeb l\u0129nh v\u1ef1c:<\/strong> C\u00e1c k\u1ef9 thu\u1eadt vi\u00ean l\u1eafp \u0111\u1eb7t cu\u1ed9n d\u00e2y 24 V DC v\u00e0o ng\u00f5 ra CNC ki\u1ec3u c\u1ef1c thu h\u1edf (open-collector) th\u01b0\u1eddng ch\u1ec9 ph\u00e1t hi\u1ec7n ra gi\u1edbi h\u1ea1n c\u1ee7a giao di\u1ec7n sau khi \u0111\u00e3 b\u00e1o gi\u00e1 d\u00f2ng \u0111\u1ecbnh m\u1ee9c 500 mA v\u00e0 h\u1ecfi xem m\u1ea1ch b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c (flyback) n\u1eb1m \u1edf \u0111\u00e2u. \u0110\u00f3 ch\u00ednh x\u00e1c l\u00e0 lo\u1ea1i chi ti\u1ebft m\u00e0 m\u1ed9t b\u1ea3n y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) c\u1ea7n ph\u1ea3i gi\u1ea3i quy\u1ebft b\u1eb1ng d\u1eef li\u1ec7u cu\u1ed9n d\u00e2y \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 v\u00e0 m\u1ed9t k\u1ebf ho\u1ea1ch d\u1eadp t\u1eaft xung \u0111\u01b0\u1ee3c n\u00eau r\u00f5, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ec3 \u0111\u1ebfn khi bo m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n h\u1ecfng r\u1ed3i m\u1edbi t\u00ednh. Xem Ghi ch\u00fa tr\u00ean DigiKey TechForum v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c (flyback) c\u1ee7a r\u01a1 le 24 VDC v\u00e0 ng\u00f5 ra PLC<\/a>.<\/p>\n<\/blockquote>\n

D\u00f2ng kh\u1edfi \u0111\u1ed9ng (Inrush) v\u00e0 d\u00f2ng gi\u1eef (holding) tr\u00ean m\u1ed9t cu\u1ed9n d\u00e2y DC \u1edf \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c<\/h2>\n

B\u1eaft \u0111\u1ea7u v\u1edbi c\u1eb7p \u0111\u00f3ng v\u00e0 gi\u1eef \u0111\u00e3 c\u00f4ng b\u1ed1 cho ki\u1ec3u m\u00e1y \u0111\u00e3 ch\u1ecdn, kh\u00f4ng ph\u1ea3i th\u00f3i quen cu\u1ed9n d\u00e2y AC.<\/p>\n

Nhi\u1ec1u ng\u01b0\u1eddi mua \u0111\u1ebfn v\u1edbi th\u00f3i quen d\u00f9ng c\u00f4ng t\u1eafc t\u01a1 \u0111i\u1ec7n xoay chi\u1ec1u: m\u1ed9t b\u1ed9 ph\u1eadn l\u1edbn d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1 m\u1ed9t chi\u1ec1u<\/strong> h\u00ecnh v\u00e0 m\u1ed9t c\u00e1i nh\u1ecf h\u01a1n d\u00f2ng \u0111i\u1ec7n gi\u1eef c\u1ee7a kh\u1edfi \u0111\u1ed9ng t\u1eeb 24v dc<\/strong> h\u00ecnh. Tr\u00ean m\u1ed9t s\u1ed1 d\u00f2ng cu\u1ed9n d\u00e2y DC ti\u00eau chu\u1ea9n, b\u1ea3ng d\u1eef li\u1ec7u li\u1ec7t k\u00ea c\u00f9ng m\u1ed9t m\u1ee9c \u0111i\u1ec7n \u00e1p h\u00fat v\u00e0 gi\u1eef c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 c\u1ee7a cu\u1ed9n d\u00e2y<\/strong> v\u00ec cu\u1ed9n d\u00e2y l\u00e0 m\u1ed9t cu\u1ed9n \u0111\u01a1n \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n b\u1eb1ng d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n

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M\u1eabu<\/th>\nNgu\u1ed3n v\u00ed d\u1ee5<\/th>\nD\u00f2ng kh\u1edfi \u0111\u1ed9ng \/ d\u00f2ng \u0111\u00f3ng c\u1eaft<\/th>\n\u0110ang gi\u1eef \/ \u0110\u00e3 ni\u00eam phong<\/th>\n\u0110i\u1ec1u ng\u01b0\u1eddi \u0111\u1ecdc r\u00fat ra \u0111\u01b0\u1ee3c<\/th>\n<\/tr>\n<\/thead>\n
L\u1ef1c h\u00fat v\u00e0 l\u1ef1c gi\u1eef b\u1eb1ng nhau tr\u00ean d\u00f2ng s\u1ea3n ph\u1ea9m kh\u1edfi \u0111\u1ed9ng \u0111i\u1ec7n t\u1eeb mini m\u1ed9t chi\u1ec1u<\/td>\nD\u1eef li\u1ec7u catalogue ABB MC1C\/MC2C<\/a><\/td>\nC\u00f4ng su\u1ea5t h\u00fat trung b\u00ecnh 3 W<\/td>\nC\u00f4ng su\u1ea5t gi\u1eef trung b\u00ecnh 3 W<\/td>\nCoi c\u1ea3 hai tr\u01b0\u1eddng l\u00e0 c\u00f9ng m\u1ed9t t\u1ea3i tr\u1eeb khi trang t\u00ednh \u0111\u00e3 ch\u1ecdn c\u00f3 quy \u0111\u1ecbnh kh\u00e1c<\/td>\n<\/tr>\n
Cu\u1ed9n d\u00e2y th\u00f4ng th\u01b0\u1eddng m\u1ed9t chi\u1ec1u IEC c\u00f3 \u0111i\u1ec7n \u00e1p h\u00fat v\u00e0 gi\u1eef khi ngu\u1ed9i b\u1eb1ng nhau<\/td>\nD\u1eef li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a kh\u1edfi \u0111\u1ed9ng t\u1eeb IEC Rockwell<\/a><\/td>\nB\u1eadt m\u00e1y l\u1ea1nh 3.0 W<\/td>\nDuy tr\u00ec 3,0 W \u1edf tr\u1ea1ng th\u00e1i l\u1ea1nh<\/td>\nS\u1eed d\u1ee5ng c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c \u1edf \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n \u0111\u1ecbnh m\u1ee9c, kh\u00f4ng ph\u1ea3i t\u1ef7 l\u1ec7 gi\u1ea3 \u0111\u1ecbnh<\/td>\n<\/tr>\n
V\u00ed d\u1ee5 v\u1ec1 d\u00f2ng \u0111i\u1ec7n h\u00fat (pickup) v\u00e0 d\u00f2ng \u0111i\u1ec7n gi\u1eef (hold) kh\u00e1c nhau tr\u00ean m\u1ed9t contactor \u0111\u1ed9ng c\u01a1 DC 24V<\/td>\nD\u1eef li\u1ec7u k\u1ef9 thu\u1eadt catalog Schneider LC1D50ABD<\/td>\nC\u00f4ng su\u1ea5t kh\u1edfi \u0111\u1ed9ng 19 W<\/td>\nC\u00f4ng su\u1ea5t duy tr\u00ec 7,4 W<\/td>\n\u0110\u1ecdc c\u1ea3 hai d\u00f2ng; k\u00edch th\u01b0\u1edbc tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n ph\u1ea3i bao g\u1ed3m vi\u1ec7c \u0111\u00f3n kh\u00e1ch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

B\u1ea3ng n\u00e0y ch\u1ec9 th\u1ec3 hi\u1ec7n c\u00e1c m\u1eabu. N\u00f3 kh\u00f4ng thay th\u1ebf cho b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt hi\u1ec7n t\u1ea1i c\u1ee7a kh\u1edfi \u0111\u1ed9ng t\u1eeb \u0111\u00e3 ch\u1ecdn.<\/p>\n

\"Ng\u1eef<\/figure>\n

Khi ch\u1ec9 c\u00f3 c\u00f4ng su\u1ea5t cu\u1ed9n d\u00e2y \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u01b0\u1edbc t\u00ednh b\u1eb1ng I = P \/ V<\/strong> s\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u00f4-\u0111un v\u00e0 \u0111\u01b0\u1eddng c\u00f4ng su\u1ea5t h\u00fat ho\u1eb7c gi\u1eef m\u00e0 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf d\u1ef1a tr\u00ean \u0111\u00f3. V\u00ed d\u1ee5: 6 W \u1edf 24 V cho ra 0,25 A, hay 250 mA. Ch\u1ec9 \u00e1p d\u1ee5ng ph\u00e9p t\u00ednh \u0111\u00f3 v\u1edbi c\u00f4ng su\u1ea5t P v\u00e0 \u0111i\u1ec7n \u00e1p V \u0111\u00e3 c\u00f4ng b\u1ed1 c\u1ee7a thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ch\u1ecdn, v\u00e0 gi\u1eef nguy\u00ean \u0111\u01a1n v\u1ecb m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf in ra.<\/p>\n

C\u00e1c tr\u01b0\u1eddng trong b\u1ea3ng d\u1eef li\u1ec7u m\u00e0 ng\u01b0\u1eddi mua n\u00ean sao ch\u00e9p v\u00e0o h\u1ed3 s\u01a1 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n<\/h2>\n

Xem b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt l\u00e0 t\u00e0i li\u1ec7u c\u00f3 th\u1ea9m quy\u1ec1n \u0111\u1ed1i v\u1edbi t\u1ea3i cu\u1ed9n d\u00e2y trong y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ).<\/p>\n

D\u01b0\u1edbi IEC 60947-4-1<\/a> \u0110\u1ed1i v\u1edbi kh\u1edfi \u0111\u1ed9ng t\u1eeb, c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 c\u1ee7a cu\u1ed9n d\u00e2y l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c \u0111o \u0111\u1ea1c. Do \u0111\u00f3, y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) c\u1ee7a b\u1ea1n ph\u1ea3i sao ch\u00e9p c\u00e1c tr\u01b0\u1eddng th\u00f4ng tin, kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ef1 \u00fd b\u1ecba ra m\u1ed9t gi\u00e1 tr\u1ecb c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n \u0111i\u1ec3n h\u00ecnh n\u00e0o.<\/p>\n

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Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 \/ tr\u01b0\u1eddng b\u1ea3ng<\/th>\nSao ch\u00e9p c\u00e1i g\u00ec<\/th>\nT\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng<\/th>\n<\/tr>\n<\/thead>\n
\u0110i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c c\u1ee7a cu\u1ed9n d\u00e2y<\/td>\n24 V DC v\u00e0 b\u1ea5t k\u1ef3 h\u1eadu t\u1ed1 m\u00e3 n\u00e0o<\/td>\nX\u00e1c nh\u1eadn l\u1edbp \u0111i\u1ec1u khi\u1ec3n v\u00e0 chu\u1ed7i th\u1ee9 t\u1ef1<\/td>\n<\/tr>\n
C\u00f4ng su\u1ea5t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng \/ \u0111\u00f3ng c\u1eaft<\/td>\nNh\u01b0 \u0111\u00e3 in, bao g\u1ed3m c\u00e1c c\u1ed9t AC\/DC ri\u00eang bi\u1ec7t n\u1ebfu c\u00f3<\/td>\nT\u1ea3i tr\u1ecdng \u0111\u1ec9nh c\u1ee7a tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n k\u00edch th\u01b0\u1edbc<\/td>\n<\/tr>\n
C\u00f4ng su\u1ea5t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n duy tr\u00ec \/ kh\u00f3a<\/td>\nNh\u01b0 \u0111\u00e3 in<\/td>\nK\u00edch th\u01b0\u1edbc t\u1ea3i ngu\u1ed3n cung c\u1ea5p tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh v\u00e0 C\u00f4ng su\u1ea5t gi\u1eef \/ d\u00f2ng \u0111i\u1ec7n<\/strong> L\u1eadp k\u1ebf ho\u1ea1ch<\/td>\n<\/tr>\n
Gi\u1edbi h\u1ea1n \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c l\u00e0m vi\u1ec7c<\/td>\nCh\u1eb3ng h\u1ea1n nh\u01b0 0,85\u20131,1 \u00d7 Uc ho\u1eb7c m\u1ed9t d\u1ea3i 0,8\u20131,2 Us \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1<\/td>\nX\u00e1c \u0111\u1ecbnh \u0111\u1ed9 s\u1ee5t gi\u1ea3m v\u00e0 t\u0103ng v\u1ecdt ngu\u1ed3n \u0111i\u1ec7n cho ph\u00e9p trong d\u1ea3i \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng<\/strong><\/td>\n<\/tr>\n
Ghi ch\u00fa m\u1ea1ch d\u1eadp t\u1eaft \/ cu\u1ed9n d\u00e2y<\/td>\n\u0110i\u1ec7p \u00e1p t\u00edch h\u1ee3p, \u0111i\u1ec7p \u00e1p ngo\u00e0i, MOV, b\u1ed9 ti\u1ebft ki\u1ec7m<\/td>\n\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh n\u0103ng b\u1ea3o v\u1ec7 ng\u01b0\u1eddi l\u00e1i v\u00e0 th\u1eddi gian nh\u1ea3<\/td>\n<\/tr>\n
Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cho d\u1eef li\u1ec7u cu\u1ed9n d\u00e2y<\/td>\nNh\u01b0 \u0111\u00e3 in<\/td>\nC\u00f4ng su\u1ea5t v\u00e0 gi\u1edbi h\u1ea1n c\u1ee7a cu\u1ed9n d\u00e2y c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

N\u1ebfu nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1 m\u1ed9t kho\u1ea3ng gi\u00e1 tr\u1ecb thay v\u00ec m\u1ed9t con s\u1ed1 duy nh\u1ea5t\u2014nh\u01b0 tr\u00ean m\u1ed9t s\u1ed1 trang th\u00f4ng s\u1ed1 c\u1ee7a c\u00f4ng t\u1eafc t\u01a1 DC t\u1ea3i n\u1eb7ng\u2014h\u00e3y ghi l\u1ea1i kho\u1ea3ng gi\u00e1 tr\u1ecb \u0111\u00f3 v\u00e0 h\u1ecfi nh\u00e0 cung c\u1ea5p xem gi\u00e1 tr\u1ecb n\u00e0o \u00e1p d\u1ee5ng cho h\u1eadu t\u1ed1 cu\u1ed9n d\u00e2y, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n. M\u1ed9t kho\u1ea3ng gi\u00e1 tr\u1ecb v\u1eabn h\u1eefu \u00edch v\u00ec n\u00f3 gi\u1edbi h\u1ea1n cho ph\u00e9p t\u00ednh; \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 cho ph\u00e9p \u0111\u1ec3 b\u1ecf qua vi\u1ec7c x\u00e1c nh\u1eadn.<\/p>\n

\"B\u1ea3ng<\/figure>\n

Gh\u00e9p n\u1ed1i t\u1ea3i cu\u1ed9n d\u00e2y v\u1edbi gi\u1edbi h\u1ea1n c\u1ee7a driver v\u00e0 c\u00e1p<\/h2>\n

Sau khi c\u00e1c gi\u00e1 tr\u1ecb pickup v\u00e0 hold \u0111\u01b0\u1ee3c sao ch\u00e9p, h\u00e3y so s\u00e1nh ch\u00fang v\u1edbi gi\u00e1 tr\u1ecb th\u1ef1c. m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n - tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n<\/strong>. Ng\u00f5 ra PLC 24 V, m\u00f4-\u0111un r\u01a1-le ho\u1eb7c giao di\u1ec7n c\u1ef1c thu h\u1edf (open-collector) s\u1ebd li\u1ec7t k\u00ea d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c t\u1ed1i \u0111a v\u00e0 \u0111\u00f4i khi l\u00e0 m\u1ee9c cho ph\u00e9p \u0111\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n \u0111\u1ec9nh ho\u1eb7c d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng. D\u1eef li\u1ec7u h\u00fat \u0111i\u1ec7n (pickup data) \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 c\u1ee7a cu\u1ed9n d\u00e2y ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi quy\u1ebft \u0111\u1ecbnh ph\u1ea7n c\u1ee9ng \u0111\u00f3.<\/p>\n

C\u0169ng sao ch\u00e9p \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c c\u1ee7a cu\u1ed9n d\u00e2y (Uc \/ Us)<\/strong> ban nh\u1ea1c l\u00e0m vi\u1ec7c. Tr\u00ean c\u00f4ng ch\u00fang Trang CZW50A<\/a>, d\u1ea3i \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c c\u1ee7a cu\u1ed9n d\u00e2y 40 \u00b0C l\u00e0 0,8\u20131,2 Us<\/strong>.<\/p>\n

\u1ede cu\u1ed9n d\u00e2y \u0111\u1ecbnh m\u1ee9c 24 V, d\u1ea3i \u0111\u00f3 ng\u1ee5 \u00fd m\u1ed9t c\u1eeda s\u1ed5 ho\u1ea1t \u0111\u1ed9ng kho\u1ea3ng t\u1eeb 19,2 V \u0111\u1ebfn 28,8 V tr\u01b0\u1edbc khi b\u1ea1n c\u1ed9ng th\u00eam h\u1ec7 s\u1ed1 gi\u1ea3m t\u1ea3i \u0111\u1eb7c th\u00f9 c\u1ee7a d\u1ef1 \u00e1n. Tuy\u00ean b\u1ed1 \u0111\u00f3 ch\u1ec9 \u00e1p d\u1ee5ng cho CZW50A; m\u1ed9t m\u1eabu m\u00e1y kh\u00e1c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c gi\u1edbi h\u1ea1n kh\u00e1c.<\/p>\n

S\u1ee5t \u00e1p c\u00e1p \u0111i\u1ec7n c\u0169ng n\u1eb1m trong ph\u1ea1m vi \u0111\u00e1nh gi\u00e1 t\u01b0\u01a1ng t\u1ef1. Do d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y DC th\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh, \u0111\u01b0\u1eddng h\u1ed3i d\u00e0i c\u00f3 th\u1ec3 l\u00e0m s\u1ee5t \u0111i\u1ec7n \u00e1p ngu\u1ed3n xu\u1ed1ng th\u1ea5p h\u01a1n \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng t\u1ed1i thi\u1ec3u c\u1ee7a thi\u1ebft b\u1ecb, ngay c\u1ea3 khi b\u1ea3n th\u00e2n m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c \u0111\u1ee7 cao tr\u00ean l\u00fd thuy\u1ebft. H\u00e3y t\u00ednh to\u00e1n \u01b0\u1edbc l\u01b0\u1ee3ng s\u1ee5t \u00e1p b\u1eb1ng \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n duy tr\u00ec ho\u1eb7c \u1ed5n \u0111\u1ecbnh, tr\u1eeb khi ph\u1ea7n ti\u1ebft ki\u1ec7m \u0111i\u1ec7n (economizer) trong b\u1ea3ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt y\u00eau c\u1ea7u s\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n h\u00fat (pickup).<\/p>\n

\"B\u1ed1i<\/figure>\n

Khi c\u00f4ng su\u1ea5t h\u00fat v\u00e0 c\u00f4ng su\u1ea5t gi\u1eef l\u00e0 c\u00e1c con s\u1ed1 kh\u00e1c nhau<\/h2>\n

Thi\u1ebft k\u1ebf cu\u1ed9n d\u00e2y ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng c\u1ea7n c\u00e1c \u0111\u01b0\u1eddng h\u00fat v\u00e0 gi\u1eef ri\u00eang bi\u1ec7t trong b\u1ea3n y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ).<\/p>\n

M\u1ed9t s\u1ed1 d\u00f2ng c\u00f4ng t\u1eafc t\u01a1 24 V DC kh\u00f4ng s\u1eed d\u1ee5ng cu\u1ed9n d\u00e2y m\u1ed9t s\u1ed1 (single-number coils). C\u00e1c thi\u1ebft k\u1ebf ti\u1ebft ki\u1ec7m \u0111i\u1ec7n ho\u1eb7c cu\u1ed9n d\u00e2y k\u00e9p c\u00f3 th\u1ec3 c\u00f3 m\u1ee9c ti\u00eau th\u1ee5 kh\u1edfi \u0111\u1ed9ng cao v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 duy tr\u00ec th\u1ea5p h\u01a1n nhi\u1ec1u. Nh\u01b0 \u0111o\u1ea1n tr\u00edch t\u1eeb danh m\u1ee5c c\u1ee7a Schneider LC1D50ABD trong b\u1ea3ng so s\u00e1nh \u1edf tr\u00ean cho th\u1ea5y, m\u1ed9t s\u1ed1 cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1 \u0111\u1ed9ng c\u01a1 24 V DC li\u1ec7t k\u00ea C\u00f4ng su\u1ea5t kh\u1edfi \u0111\u1ed9ng 19 W<\/strong> v\u00e0 C\u00f4ng su\u1ea5t duy tr\u00ec 7,4 W<\/strong>\u2014m\u1ed9t v\u1ea5n \u0111\u1ec1 k\u00edch th\u01b0\u1edbc driver r\u1ea5t kh\u00e1c so v\u1edbi cu\u1ed9n d\u00e2y DC ti\u00eau chu\u1ea9n 3 W \/ 3 W.<\/p>\n

M\u1eabu \u0111\u00f3 thay \u0111\u1ed5i g\u00f3i RFQ theo hai c\u00e1ch. Tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n v\u00e0 ngu\u1ed3n \u0111i\u1ec7n ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c c\u00f4ng su\u1ea5t thu nh\u1eadn, kh\u00f4ng ch\u1ec9 c\u00f4ng su\u1ea5t gi\u1eef. T\u00e0i li\u1ec7u ph\u1ea3i n\u00eau r\u00f5 li\u1ec7u c\u00f3 c\u1ea7n m\u1ed9t b\u1ed9 ti\u1ebft ki\u1ec7m \u0111i\u1ec7n b\u00ean ngo\u00e0i, tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n PWM ho\u1eb7c m\u00f4-\u0111un nh\u00e0 m\u00e1y hay kh\u00f4ng.<\/p>\n

N\u1ebfu RFQ ch\u1ec9 sao ch\u00e9p \u0111\u01b0\u1eddng gi\u1eef (hold line), t\u1ee7 \u0111i\u1ec7n c\u00f3 th\u1ec3 tr\u00f4ng c\u00f3 v\u1ebb hi\u1ec7u qu\u1ea3 tr\u00ean gi\u1ea5y t\u1edd nh\u01b0ng v\u1eabn s\u1ebd l\u1ed7i ngay l\u1ec7nh \u0111\u00f3ng \u0111\u1ea7u ti\u00ean.<\/p>\n

C\u00e1ch l\u1eadp t\u00e0i li\u1ec7u v\u1ec1 d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y \u0111\u1ec3 nh\u00e0 cung c\u1ea5p xem x\u00e9t<\/h2>\n

Nh\u00e0 cung c\u1ea5p kh\u00f4ng th\u1ec3 x\u00e1c nh\u1eadn s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a cu\u1ed9n d\u00e2y ch\u1ec9 d\u1ef1a v\u00e0o d\u00f2ng \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y chung chung. H\u00e3y g\u1eedi chu\u1ed7i ki\u1ec3u m\u00e1y \u0111\u1ea7y \u0111\u1ee7, bao g\u1ed3m h\u1eadu t\u1ed1 cu\u1ed9n d\u00e2y nh\u01b0 \/24V<\/code> khi \u0111\u00f3 l\u00e0 c\u00e1ch nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1eb7t h\u00e0ng cu\u1ed9n d\u00e2y. Th\u00eam c\u00f4ng su\u1ea5t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n h\u00fat v\u00e0 gi\u1eef \u0111\u00e3 c\u00f4ng b\u1ed1, lo\u1ea1i v\u00e0 \u0111\u1ecbnh m\u1ee9c m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n, ph\u01b0\u01a1ng ph\u00e1p tri\u1ec7t ti\u00eau, c\u00e1c ghi ch\u00fa v\u1ec1 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 chu k\u1ef3 l\u00e0m vi\u1ec7c, c\u00f9ng v\u1edbi l\u1ea7n s\u1eeda \u0111\u1ed5i b\u1ea3n v\u1ebd khi ph\u00e2n c\u1ef1c l\u00e0 quan tr\u1ecdng.<\/p>\n

S\u1ea3n ph\u1ea9m CZW n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t RFQ v\u1ec1 \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a?<\/h2>\n

N\u1ebfu y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n \u0111\u00e3 h\u01b0\u1edbng \u0111\u1ebfn d\u00f2ng s\u1ea3n ph\u1ea9m SAYOON CZW cho m\u1ed9t \u1ee9ng d\u1ee5ng \u0111i\u1ec1u khi\u1ec3n DC \u0111i\u1ec7n \u00e1p th\u1ea5p, th\u00ec Contactor DC th\u01b0\u1eddng m\u1edf CZW50A<\/a> trang n\u00e0y l\u00e0 m\u1ed9t v\u00ed d\u1ee5 c\u1ee5 th\u1ec3 v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u cu\u1ed9n xu\u1ea5t hi\u1ec7n trong th\u1ef1c t\u1ebf. B\u1ea3ng c\u00f4ng khai li\u1ec7t k\u00ea 24 V<\/strong> trong s\u1ed1 c\u00e1c \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c c\u1ee7a cu\u1ed9n d\u00e2y, cho th\u1ea5y C\u00f4ng su\u1ea5t cu\u1ed9n d\u00e2y (W) 5\u201310<\/strong>, v\u00e0 \u0111\u01b0a ra m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c s\u1eafp x\u1ebfp CZW50A\/24V<\/strong>. Nh\u1eefng tuy\u00ean b\u1ed1 \u0111\u00f3 ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf CZW50A v\u00e0 kh\u00f4ng thay th\u1ebf cho b\u1ea3ng d\u1eef li\u1ec7u \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a ki\u1ec3u m\u00e1y \u0111\u00e3 ch\u1ecdn.<\/p>\n

Ch\u1ec9 \u0111\u1ec3 \u01b0\u1edbc t\u00ednh n\u1ed9i b\u1ed9 nhanh, d\u1ea3i c\u00f4ng su\u1ea5t 5\u201310 W \u1edf 24 V t\u01b0\u01a1ng \u1ee9ng kho\u1ea3ng 0,21\u20130,42 A<\/strong> s\u1eed d\u1ee5ng I = P \/ V. H\u00e3y coi kho\u1ea3ng \u0111\u00f3 l\u00e0 m\u1ed9t kho\u1ea3ng l\u1eadp k\u1ebf ho\u1ea1ch, kh\u00f4ng ph\u1ea3i l\u00e0 d\u00f2ng \u0111i\u1ec7n ho\u00e0n c\u00f4ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, cho \u0111\u1ebfn khi nh\u00e0 cung c\u1ea5p x\u00e1c nh\u1eadn h\u1eadu t\u1ed1 cu\u1ed9n d\u00e2y v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

Khi y\u00eau c\u1ea7u \u0111\u01b0\u1eddng ch\u00ednh ph\u00f9 h\u1ee3p v\u1edbi h\u1ecd CZW nh\u01b0ng m\u1ee9c \u0111\u1ecbnh m\u1ee9c hi\u1ec7n t\u1ea1i kh\u00e1c, h\u00e3y ti\u1ebfp t\u1ee5c t\u1eeb Trung t\u00e2m kh\u1edfi \u0111\u1ed9ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (contactor DC) d\u00f2ng CZW<\/a> v\u00e0 l\u1eb7p l\u1ea1i danh s\u00e1ch ki\u1ec3m tra cu\u1ed9n d\u00e2y - t\u1eeb tr\u01b0\u1eddng t\u01b0\u01a1ng t\u1ef1 tr\u00ean \u0111\u00fang m\u1eabu m\u00e1y \u0111ang \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1.<\/p>\n

\"Contactor<\/figure>\n

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

Nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y bao g\u1ed3m c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra mua s\u1eafm c\u00f2n l\u1ea1i m\u00e0 ng\u01b0\u1eddi mua \u0111\u1eb7t ra sau c\u00e1c ph\u1ea7n danh s\u00e1ch ki\u1ec3m tra \u1edf tr\u00ean.<\/p>\n

Cu\u1ed9n d\u00e2y c\u1ee7a c\u00f4ng su\u1ea5t t\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC contactor) ti\u00eau th\u1ee5 d\u00f2ng \u0111i\u1ec7n l\u00e0 bao nhi\u00eau \u1edf \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c?<\/h3>\n

Kh\u00f4ng c\u00f3 m\u1ed9t c\u00e2u tr\u1ea3 l\u1eddi duy nh\u1ea5t cho m\u1ecdi danh m\u1ee5c. H\u00e3y sao ch\u00e9p c\u00f4ng su\u1ea5t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n h\u00fat v\u00e0 gi\u1eef t\u1eeb b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a ki\u1ec3u m\u00e1y \u0111\u00e3 ch\u1ecdn \u1edf 24 V DC. N\u1ebfu ch\u1ec9 c\u00f4ng su\u1ea5t (watt) \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, h\u00e3y \u01b0\u1edbc t\u00ednh d\u00f2ng \u0111i\u1ec7n b\u1eb1ng c\u00f4ng th\u1ee9c I = P \/ V d\u1ef1a tr\u00ean \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n \u0111\u1ecbnh m\u1ee9c c\u1ee7a ki\u1ec3u m\u00e1y \u0111\u00f3.<\/p>\n

Cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1 DC c\u00f3 d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng kh\u00f4ng?<\/h3>\n

M\u1ed9t s\u1ed1 l\u00e0m v\u1eady, m\u1ed9t s\u1ed1 th\u00ec kh\u00f4ng. M\u1ed9t s\u1ed1 d\u00f2ng cu\u1ed9n d\u00e2y DC ti\u00eau chu\u1ea9n c\u00f4ng b\u1ed1 c\u00f4ng su\u1ea5t h\u00fat v\u00e0 gi\u1eef b\u1eb1ng nhau, trong khi c\u00e1c thi\u1ebft k\u1ebf ti\u1ebft ki\u1ec7m \u0111i\u1ec7n ho\u1eb7c cu\u1ed9n d\u00e2y k\u00e9p l\u1ea1i c\u00f4ng b\u1ed1 c\u00e1c gi\u00e1 tr\u1ecb kh\u1edfi \u0111\u1ed9ng v\u00e0 duy tr\u00ec ri\u00eang bi\u1ec7t. H\u00e3y \u0111\u1ecdc k\u1ef9 c\u1ea3 hai d\u00f2ng tr\u00ean \u0111\u00fang t\u1edd th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u00e0 b\u1ea1n \u0111ang mua.<\/p>\n

C\u00e1c tr\u01b0\u1eddng cu\u1ed9n d\u00e2y n\u00e0o t\u00f4i n\u00ean sao ch\u00e9p v\u00e0o RFQ?<\/h3>\n

T\u1ed1i thi\u1ec3u \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u cu\u1ed9n d\u00e2y: \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y \u0111\u1ecbnh m\u1ee9c, c\u00f4ng su\u1ea5t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n h\u00fat, c\u00f4ng su\u1ea5t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n gi\u1eef, gi\u1edbi h\u1ea1n \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng, ph\u01b0\u01a1ng ph\u00e1p d\u1eadp t\u1eaft, v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng. Th\u00eam lo\u1ea1i m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n v\u00e0 chi\u1ec1u d\u00e0i c\u00e1p khi c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c ph\u00ea duy\u1ec7t.<\/p>\n

Ng\u00f5 ra PLC c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c ti\u1ebfp cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng t\u1eeb (contactor) hay kh\u00f4ng?<\/h3>\n

Ch\u1ec9 khi t\u1ea3i cu\u1ed9n d\u00e2y \u0111\u00e3 c\u00f4ng b\u1ed1 ph\u00f9 h\u1ee3p v\u1edbi m\u1ee9c c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c v\u00e0 s\u01a1 \u0111\u1ed3 b\u1ea3o v\u1ec7. H\u00e3y so s\u00e1nh d\u00f2ng \u0111i\u1ec7n ho\u1eb7c c\u00f4ng su\u1ea5t t\u00e1c \u0111\u1ed9ng v\u1edbi gi\u1edbi h\u1ea1n \u0111\u1ea7u ra, x\u00e1c nh\u1eadn kh\u1ea3 n\u0103ng tri\u1ec7t ti\u00eau v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng ch\u1ec9 ri\u00eang th\u00f4ng s\u1ed1 gi\u1eef l\u00e0 \u0111\u1ee7 \u0111\u1ed1i v\u1edbi c\u00e1c cu\u1ed9n d\u00e2y ti\u1ebft ki\u1ec7m \u0111i\u1ec7n.<\/p>\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y t\u1eeb c\u00f4ng su\u1ea5t cu\u1ed9n d\u00e2y?<\/h3>\n

S\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c I = P \/ V v\u1edbi \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n c\u1ee7a cu\u1ed9n d\u00e2y m\u00e0 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf\u2014h\u00fat ho\u1eb7c gi\u1eef\u2014v\u00e0 \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n \u0111\u1ecbnh m\u1ee9c \u0111\u01b0\u1ee3c in cho cu\u1ed9n d\u00e2y \u0111\u00f3. Kh\u00f4ng m\u01b0\u1ee3n c\u00f4ng su\u1ea5t t\u1eeb nh\u00e3n hi\u1ec7u kh\u00e1c ho\u1eb7c k\u00edch th\u01b0\u1edbc khung kh\u00e1c.<\/p>\n

S\u1ee5t \u00e1p n\u00e0o quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n DC?<\/h3>\n

\u0110\u1ed9 s\u1ee5t \u00e1p \u0111\u1ee7 l\u1edbn \u0111\u1ec3 \u0111\u1ea9y ngu\u1ed3n \u0111i\u1ec7n ra kh\u1ecfi d\u1ea3i \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 c\u1ee7a thi\u1ebft b\u1ecb. Tr\u00ean CZW50A, trang th\u00f4ng tin c\u00f4ng khai li\u1ec7t k\u00ea d\u1ea3i l\u00e0m vi\u1ec7c c\u1ee7a cu\u1ed9n d\u00e2y l\u00e0 0,8\u20131,2 Us \u1edf 40 \u00b0C; c\u00e1c m\u1eabu kh\u00e1c c\u00f3 th\u1ec3 kh\u00e1c nhau.<\/p>\n

D\u00f2ng \u0111i\u1ec7n gi\u1eef v\u00e0 d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) tr\u00ean m\u1ed9t cu\u1ed9n d\u00e2y DC c\u00f3 gi\u1ed1ng nhau kh\u00f4ng?<\/h3>\n

Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady. C\u00e1c v\u00ed d\u1ee5 v\u1ec1 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) m\u1ed9t cu\u1ed9n d\u00e2y ti\u00eau chu\u1ea9n th\u01b0\u1eddng kh\u1edbp v\u1edbi nhau, nh\u01b0ng b\u1ea3ng th\u00f4ng s\u1ed1 c\u1ee7a m\u1ed9t s\u1ed1 contactor 24 V DC l\u1ea1i li\u1ec7t k\u00ea c\u00f4ng su\u1ea5t h\u00fat v\u00e0 c\u00f4ng su\u1ea5t gi\u1eef kh\u00e1c nhau. Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) n\u00ean n\u00eau r\u00f5 b\u1ea5t k\u1ef3 c\u1eb7p th\u00f4ng s\u1ed1 n\u00e0o m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1.<\/p>\n

T\u00f4i n\u00ean g\u1eedi cho SAYOON nh\u1eefng g\u00ec \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 cu\u1ed9n d\u00e2y?<\/h3>\n

G\u1eedi chu\u1ed7i m\u00f4 h\u00ecnh \u0111\u1ea7y \u0111\u1ee7 (v\u00ed d\u1ee5: CZW50A\/24V), d\u1eef li\u1ec7u cu\u1ed9n d\u00e2y b\u1ea1n \u0111\u00e3 sao ch\u00e9p, chi ti\u1ebft v\u1ec1 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 m\u1ea1ch tri\u1ec7t ti\u00eau, c\u00e1c l\u01b0u \u00fd v\u1ec1 nhi\u1ec7t \u0111\u1ed9 xung quanh v\u00e0 chu k\u1ef3 l\u00e0m vi\u1ec7c, c\u00f9ng v\u1edbi b\u1ea3n s\u1eeda \u0111\u1ed5i b\u1ea3n v\u1ebd. S\u1eed d\u1ee5ng Trang li\u00ean h\u1ec7<\/a> khi g\u00f3i tin ho\u00e0n t\u1ea5t.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n