{"id":22976,"date":"2020-07-11T10:16:28","date_gmt":"2020-07-11T03:16:28","guid":{"rendered":"https:\/\/banbientan.com\/?p=22976"},"modified":"2020-07-11T10:16:28","modified_gmt":"2020-07-11T03:16:28","slug":"bien-dong-la-gi-khai-niem-phan-loai-cau-tao-sua-chua-bien-tan-tai-ha-noi","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=22976","title":{"rendered":"Bi\u1ebfn d\u00f2ng l\u00e0 g\u00ec? Kh\u00e1i ni\u1ec7m, ph\u00e2n lo\u1ea1i, C\u1ea5u t\u1ea1o S\u1eecA CH\u1eeeA BI\u1ebeN T\u1ea6N T\u1ea0I H\u00c0 N\u1ed8I"},"content":{"rendered":"\n\n

Ng\u00e0y nay, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb \u1edf \u0111i\u1ec7n \u00e1p ph\u00f9 h\u1ee3p l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ea7n l\u01b0u \u00fd. M\u00e1y bi\u1ebfn d\u00f2ng ra \u0111\u1eddi nh\u1eb1m thay \u0111\u1ed5i c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n theo mong mu\u1ed1n. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u th\u00eam nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u00e1y bi\u1ebfn d\u00f2ng trong b\u00e0i vi\u1ebft sau \u0111\u00e2y.<\/em><\/strong><\/p>\n

Bi\u1ebfn d\u00f2ng l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

M\u00e1y bi\u1ebfn d\u00f2ng hay g\u1ecdi t\u1eaft l\u00e0 bi\u1ebfn d\u00f2ng (t\u00ean ti\u1ebfng anh l\u00e0: Current Transformer \u2013 k\u00ed hi\u1ec7u m\u00e1y bi\u1ebfn d\u00f2ng CT<\/strong>) l\u00e0 1 lo\u1ea1i m\u00e1y bi\u1ebfn \u0111i\u1ec7n \u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m m\u1ed9t d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC). N\u00f3 t\u1ea1o ra m\u1ed9t d\u00f2ng \u0111i\u1ec7n trong cu\u1ed9n th\u1ee9 c\u1ea5p c\u1ee7a n\u00f3 t\u1ef7 l\u1ec7 v\u1edbi d\u00f2ng \u0111i\u1ec7n \u0111i qua n\u00f3.<\/p>\n\n\n

\"\"
\u0110\u1ea5u n\u1ed1i bi\u1ebfn d\u00f2ng<\/figcaption><\/figure>\n\n\n

C\u1ea5u t\u1ea1o bi\u1ebfn d\u00f2ng.
M\u00e1y bi\u1ebfn d\u00f2ng bao g\u1ed3m c\u00e1c ph\u1ea7n ch\u00ednh sau \u0111\u00e2y:
<\/strong><\/span><\/p>\n

    \n
  • Primary Current: D\u00f2ng \u0111i\u1ec7n s\u01a1 c\u1ea5p<\/li>\n
  • Secondary Winding: Cu\u1ed9n d\u00e2y th\u1ee9 c\u1ea5p<\/li>\n
  • Hollow Core: L\u00f5i r\u1ed7ng<\/li>\n
  • Ammeter : \u0110\u1ed3ng h\u1ed3 \u0111o d\u00f2ng<\/li>\n<\/ul>\n\n\n
    \"\"
    C\u1ea5u t\u1ea1o bi\u1ebfn d\u00f2ng<\/figcaption><\/figure>\n\n\n

    \u0110\u1eb7c \u0111i\u1ec3m bi\u1ebfn d\u00f2ng<\/strong><\/span><\/h2>\n

    Kh\u00f4ng gi\u1ed1ng nh\u01b0 m\u00e1y \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf hay m\u00e1y bi\u1ebfn \u00e1p ngu\u1ed3n truy\u1ec1n th\u1ed1ng, bi\u1ebfn d\u00f2ng c\u1ea5u t\u1ea1o g\u1ed3m m\u1ed9t ho\u1eb7c m\u1ed9t s\u1ed1 \u00edt v\u00f2ng d\u00e2y.<\/p>\n

    Nh\u1eefng v\u00f2ng d\u00e2y truy\u1ec1n th\u1ed1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 \u1edf d\u1ea1ng m\u1ed9t \u0111o\u1ea1n d\u00e2y d\u1eabn d\u1eb9t qu\u1ea5n th\u00e0nh m\u1ed9t v\u00f2ng ho\u1eb7c m\u1ed9t cu\u1ed9n d\u00e2y d\u1eabn qu\u1ea5n nhi\u1ec1u v\u00f2ng quanh l\u00f5i r\u1ed7ng ho\u1eb7c \u0111\u01b0\u1ee3c n\u1ed1i th\u1eb3ng \u0111\u1ebfn ch\u1ed7 c\u1ea7n n\u1ed1i m\u1ea1ch th\u00f4ng qua thi\u1ebft b\u1ecb c\u00f3 l\u1ed7 h\u1ed5ng trung t\u00e2m. V\u00e0 c\u0169ng do c\u00e1ch thi\u1ebft k\u1ebf n\u00e0y m\u00e0 m\u00e1y bi\u1ebfn d\u00f2ng th\u1eddi tr\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t \u201cchu\u1ed7i bi\u1ebfn \u00e1p\u201d c\u00f3 ch\u1ee9c n\u0103ng gi\u1ed1ng nh\u01b0 m\u1ed9t cu\u1ed9n th\u1ee9 c\u1ea5p.<\/p>\n

    Cu\u1ed9n th\u1ee9 c\u1ea5p c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn c\u00e1c cu\u1ed9n c\u1ea3m qu\u1ea5n quanh l\u00f5i th\u00e9p l\u00e1 nh\u1eb1m gi\u1ea3m t\u1ed1i thi\u1ec3u m\u1ee9c hao t\u1ed1n l\u01b0\u1ee1ng c\u1ef1c t\u1eeb c\u1ee7a ph\u1ea7n c\u00f3 ti\u1ebft di\u1ec7n, v\u00ec th\u1ebf \u0111\u1ed9 c\u1ea3m \u1ee9ng t\u1eeb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf m\u1ee9c th\u1ea5p h\u01a1n ti\u1ebft di\u1ec7n c\u1ee7a d\u00e2y d\u1eabn, \u0111i\u1ec1u n\u00e0y c\u0169ng t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 l\u1edbn m\u00e0 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng. Cu\u1ed9n th\u1ee9 c\u1ea5p th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u1eb7c \u0111\u1ecbnh \u1edf m\u1ee9c 1A cho c\u01b0\u1eddng \u0111\u1ed9 nh\u1ecf ho\u1eb7c \u1edf m\u1ee9c 5A cho c\u01b0\u1eddng c\u01b0\u1eddng \u0111\u1ed9 l\u1edbn.<\/p>\n\n\n

    Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng bi\u1ebfn d\u00f2ng<\/strong><\/span><\/h2>\n

    M\u00e1y bi\u1ebfn d\u00f2ng ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7n t\u01b0\u1ee3ng c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb. Khi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u ch\u1ea1y qua 1 d\u00e2y d\u1eabn, xung quanh n\u00f3 s\u1ebd xu\u1ea5t hi\u1ec7n m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng, \u0111i\u1ec7n tr\u01b0\u1eddng n\u00e0y c\u1ea3m \u1ee9ng l\u00ean cu\u1ed9n d\u00e2y v\u00e0 s\u1ebd xu\u1ea5t hi\u1ec7n m\u1ed9t d\u00f2ng \u0111i\u1ec7n trong \u0111\u00f3. T\u1ef7 l\u1ec7 d\u00f2ng \u0111i\u1ec7n n\u00e0y \u0111\u01b0\u1ee3c c\u0103n c\u1ee9 v\u00e0o s\u1ed1 v\u00f2ng d\u00e2y \u0111\u01b0\u1ee3c cu\u1ed1n trong cu\u1ed9n d\u00e2y bi\u1ebfn d\u00f2ng.<\/p>\n\n\n

    \"\"
    Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a bi\u1ebfn d\u00f2ng<\/figcaption><\/figure>\n\n\n

    Ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng bi\u1ebfn d\u00f2ng<\/strong><\/span><\/h2>\n

    CT d\u00f2ng c\u00f3 hai ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u01a1 b\u1ea3n: ch\u1ebf \u0111\u1ed9 ng\u1eafn m\u1ea1ch v\u00e0 ch\u1ebf \u0111\u1ed9 h\u1edf m\u1ea1ch.<\/p>\n

    Ch\u1ebf \u0111\u1ed9 ng\u1eafn m\u1ea1ch c\u1ee7a d\u00f2ng s\u01a1 c\u1ea5p, th\u1ee9c c\u1ea5p c\u00f3 ph\u1ee5 t\u1ea3i Z2<\/strong><\/span><\/h3>\n

    T\u1ef7 s\u1ed1 gi\u1eefa d\u00f2ng ng\u1eafn m\u1ea1ch s\u01a1 c\u1ea5p tr\u00ean d\u00f2ng \u0111\u1ecbnh m\u1ee9c g\u1ecdi l\u00e0 b\u1ed9i s\u1ed1 d\u00f2ng c\u1ee7a m\u00e1y bi\u1ebfn d\u00f2ng. Khi b\u1ed9i s\u1ed1 n\u00e0y l\u1edbn, sai s\u1ed1 CT t\u0103ng v\u00e0 sai s\u1ed1 n\u00e0y c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o d\u00f2ng th\u1ee9 c\u1ea5p ho\u1eb7c t\u1ea3i. Th\u01b0\u1eddng v\u1edbi m\u1ea1ch b\u1ea3o v\u1ec7, b\u1ed9i s\u1ed1 d\u00f2ng \u0111i\u1ec7n c\u1ee7a CT d\u00f2ng ph\u1ea3i \u0111\u1ea1t gi\u00e1 tr\u1ecb sao cho sai s\u1ed1 c\u1ee7a n\u00f3 d\u01b0\u1edbi 10%.<\/p>\n

    Ch\u1ebf \u0111\u1ed9 h\u1edf m\u1ea1ch th\u1ee9 c\u1ea5p<\/strong><\/span><\/h3>\n

    Khi th\u1ee9 c\u1ea5p h\u1edf m\u1ea1ch, ph\u00eda th\u1ee9 c\u1ea5p s\u1ebd c\u00f3 \u0111i\u1ec7n \u00e1p c\u1ea3m \u1ee9ng v\u1edbi bi\u00ean \u0111\u1ed9 r\u1ea5t cao g\u00e2y nguy hi\u1ec3m cho ng\u01b0\u1eddi v\u00e0 c\u00e1c thi\u1ebft b\u1ecb th\u1ee9 c\u1ea5p. \u0110\u1ec3 ch\u1ed1ng hi\u1ec7n t\u01b0\u1ee3ng b\u1ea3o h\u00f2a trong m\u1ea1ch t\u1eeb, ng\u01b0\u1eddi ta c\u00f2n ch\u1ebf t\u1ea1o ra m\u00e1y bi\u1ebfn d\u00f2ng c\u00f3 khe h\u1edf kh\u00f4ng kh\u00ed hay c\u00f2n g\u1ecdi l\u00e0 bi\u1ebfn d\u00f2ng tuy\u1ebfn t\u00ednh.<\/p>\n

    CT d\u00f2ng c\u00f3 t\u1ef7 s\u1ed1 d\u00f2ng \u0111i\u1ec7n t\u1ef7 l\u1ec7 ngh\u1ecbch v\u1edbi s\u1ed1 v\u00f2ng d\u00e2y qu\u1ea5n. Do \u0111\u00f3, ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u1ef7 s\u1ed1 bi\u1ebfn d\u00f2ng b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i s\u1ed1 v\u00f2ng d\u00e2y qu\u1ea5n ph\u00eda s\u01a1 c\u1ea5p ho\u1eb7c th\u1ee9 c\u1ea5p.<\/p>\n

    Th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a m\u00e1y bi\u1ebf<\/strong>n d\u00f2ng<\/strong><\/span><\/h2>\n

    T\u1ec9 s\u1ed1 100\/5A hay 300\/5A c\u1ee7a bi\u1ebfn d\u00f2ng c\u00f3 \u00fd ngh\u0129a l\u00e0 g\u00ec?<\/strong><\/span><\/h3>\n

    H\u1ea7u h\u1ebft c\u00e1c m\u00e1y bi\u1ebfn d\u00f2ng hi\u1ec7n nay c\u00f3 ti\u00eau chu\u1ea9n l\u00e0 5 ampe (5 A) v\u00e0 1 ampe (1 A). Tr\u00ean c\u00e1c CT d\u00f2ng th\u01b0\u1eddng c\u00f3 c\u00e1c th\u00f4ng s\u1ed1 nh\u01b0: 100\/5A hay 100\/1A ho\u1eb7c 500\/5A.<\/p>\n

    V\u00ed d\u1ee5\u00a0 100\/5.\u00a0 V\u1eady, t\u1ef7 s\u1ed1 ch\u00eanh l\u1ec7ch n\u00e0y c\u00f3 \u00fd ngh\u0129a g\u00ec?<\/strong><\/span><\/h3>\n

    \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a r\u1eb1ng khi 100 ampe ch\u1ea1y trong cu\u1ed9n bi\u1ebfn d\u00f2ng s\u1ebd chuy\u1ec3n th\u00e0nh 5 ampe (5 A) ho\u1eb7c v\u1edbi t\u1ef7 l\u1ec7 500\/5 th\u00ec ch\u00fang c\u0169ng s\u1ebd cho k\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t d\u00f2ng \u0111i\u1ec7n 5 ampe cho cu\u1ed9n th\u1ee9 c\u1ea5p v\u00e0 500 ampe cho cu\u1ed9n s\u01a1 c\u1ea5p.<\/p>\n

    L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb 5A?<\/strong><\/span><\/h3>\n

    H\u1ea7u nh\u01b0 c\u00e1c t\u1ee7 \u0111i\u1ec7n \u0111\u1ec1u d\u00f9ng \u0111\u1ed3ng h\u1ed3 c\u01a1 c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ecdc \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb 5A . Ng\u00e0y nay v\u1edbi nhu c\u1ea7u ng\u00e0y c\u00e0ng cao th\u00ec ch\u00fang ta c\u1ea7n truy\u1ec1n t\u00edn hi\u1ec7u 5A n\u00e0y v\u1ec1 PLC ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c \u0111\u1ec3 gi\u00e1m s\u00e1t v\u00e0 \u0111i\u1ec1u khi\u1ec3n. Tuy nhi\u00ean PLC c\u0169ng nh\u01b0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n kh\u00e1c l\u1ea1i kh\u00f4ng th\u1ec3 \u0111\u1ecdc tr\u1ef1c ti\u1ebfp \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb 5A n\u00e0y.<\/p>\n

    \u00a0<\/p>\n\n\n

    \"\"
    B\u1ed9 gi\u1ea3i m\u00e3 gi\u00e1 tr\u1ecb 5A c\u1ee7a bi\u1ebfn d\u00f2ng ra Analog 4-20mA | <\/em><\/figcaption><\/figure>\n\n\n

    T\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n ng\u00e0y nay \u0111\u1ec1u \u0111\u01b0a v\u1ec1 d\u1ea1ng chu\u1ea9n analog 4-20mA ho\u1eb7c 0-10V ch\u00ednh v\u00ec ch\u00fang ta ph\u1ea3i d\u00f9ng qua m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i gi\u00e1 tr\u1ecb 5A c\u1ee7a CT d\u00f2ng 5A ho\u1eb7c CT d\u00f2ng 10A ra d\u1ea1ng Analog 4-20mA.<\/p>\n

    \u1ee8ng d\u1ee5ng<\/strong><\/span><\/h2>\n

    M\u00e1y bi\u1ebfn d\u00f2ng l\u00e0 thi\u1ebft b\u1ecb kh\u00f4ng th\u1ec3 thi\u1ebfu trong h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t, \u0111o l\u01b0\u1eddng \u0111i\u1ec7n n\u0103ng. N\u00f3i m\u1ed9t c\u00e1ch d\u1ec5 hi\u1ec3u th\u00ec m\u00e1y bi\u1ebfn d\u00f2ng \u0111i\u1ec7n l\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n d\u00f9ng \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n c\u00f3 tr\u1ecb s\u1ed1 cao xu\u1ed1ng d\u00f2ng \u0111i\u1ec7n c\u00f3 tr\u1ecb s\u1ed1 ti\u00eau chu\u1ea9n 5A v\u00e0 1A. \u0110\u1ec3 cung c\u1ea5p \u0111i\u1ec7n \u00e1p an to\u00e0n cho m\u1ea1ch \u0111o l\u01b0\u1eddng, \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ea3o v\u1ec7.<\/p>\n

    Ngo\u00e0i lo\u1ea1i bi\u1ebfn d\u00f2ng kinh \u0111i\u1ec3n l\u00e0m vi\u1ec7c theo nguy\u00ean l\u00fd \u0111i\u1ec7n t\u1eeb, hi\u1ec7n nay, c\u00f2n c\u00f3 bi\u1ebfn d\u00f2ng ki\u1ec3u m\u1edbi d\u00f9ng cho l\u01b0\u1edbi \u0111i\u1ec7n si\u00eau cao \u00e1p nh\u1eb1m gi\u1ea3m chi ph\u00ed cho c\u00e1ch \u0111i\u1ec7n c\u1ee7a c\u00e1c bi\u1ebfn d\u00f2ng kinh \u0111i\u1ec3n.<\/p>\n

    M\u00e1y bi\u1ebfn d\u00f2ng d\u1ea1ng kh\u1ed1i, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c lo\u1ea1i d\u00e2y c\u00e1p, thanh c\u00e1i c\u1ee7a m\u1ea1ch \u0111i\u1ec7n ch\u00ednh, g\u1ea7n gi\u1ed1ng nh\u01b0 cu\u1ed9n s\u01a1 c\u1ea5p, nh\u01b0ng ch\u1ec9 c\u00f3 m\u1ed9t v\u00f2ng d\u00e2y duy nh\u1ea5t. Ch\u00fang ho\u00e0n to\u00e0n t\u00e1ch bi\u1ec7t v\u1edbi ngu\u1ed3n \u0111i\u1ec7n \u00e1p cao v\u1eadn h\u00e0nh trong h\u1ec7 m\u1ea1ch v\u00e0 lu\u00f4n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n t\u1ea3i trong thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n

    C\u00f3 h\u00e0ng lo\u1ea1t c\u00e1c thi\u1ebft b\u1ecb \u1ee9ng d\u1ee5ng \u0111o l\u01b0\u1eddng v\u00e0 s\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn d\u00f2ng, v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u nh\u01b0 thi\u1ebft b\u1ecb o\u00e1t k\u1ebf, m\u00e1y \u0111o h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t, \u0111\u1ed3ng h\u1ed3 \u0111o ch\u1ec9 s\u1ed1 \u0111i\u1ec7n, r\u01a1-le b\u1ea3o v\u1ec7 ho\u1eb7c v\u00ed d\u1ee5 nh\u01b0 cu\u1ed9n nh\u1ea3 trong b\u1ed9 ph\u1eadn ng\u1eaft m\u1ea1ch t\u1eeb\u2026<\/p>\n

    C\u00e1c lo\u1ea1i m\u00e1y bi\u1ebfn d\u00f2ng th\u00f4ng d\u1ee5ng hi\u1ec7n nay<\/strong><\/span><\/h2>\n

    Taiwan Meters nh\u00e0 s\u1ea3n xu\u1ea5t c\u00e1c\u00a0thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p\u00a0\u0111\u1ebfn t\u1eeb \u0110\u00e0i Loan. V\u1edbi h\u01a1n 50 n\u0103m kinh nghi\u1ec7m, c\u00e1c thi\u1ebft b\u1ecb Taiwan Meters \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nhi\u1ec1u ch\u1ee9ng nh\u1eadn (UL, RoHS) t\u1eeb c\u00e1c t\u1ed5 ch\u1ee9c uy t\u00edn tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m nh\u01b0: bi\u1ebfn d\u00f2ng, \u0111\u1ed3ng h\u1ed3 \u0111o Volt, \u0111\u1ed3ng h\u1ed3 \u0111o Ampe, c\u00f4ng t\u1eafc chuy\u1ec3n m\u1ea1ch Volt, chuy\u1ec3n m\u1ea1ch Ampe\u2026<\/p>\n

    D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c d\u1ea1ng m\u00e1y bi\u1ebfn d\u00f2ng c\u1ee7a Taiwan Meters, c\u00f3 3 d\u1ea1ng m\u00e1y bi\u1ebfn v\u00f2ng: d\u1ea1ng v\u00f2ng, d\u1ea1ng d\u00e2y qu\u1ea5n v\u00e0 d\u1ea1ng thanh kh\u1ed1i.<\/p>\n

    D\u1ea1ng m\u00e1y bi\u1ebfn d\u00f2ng d\u1ea1ng v\u00f2ng<\/strong><\/span><\/h3>\n

    \u201cV\u00f2ng\u201d s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p c\u1ea5u t\u1ea1o \u1edf cu\u1ed9n s\u01a1 c\u1ea5p. Tuy nhi\u00ean, thay v\u00e0o \u0111\u00f3 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c ch\u1ea1y trong m\u1ea1ch s\u1ebd truy\u1ec1n v\u00e0 ch\u1ea1y th\u1eb3ng qua c\u00e1c khe c\u1eeda hay l\u1ed7 h\u1ed5ng c\u1ee7a \u201cv\u00f2ng\u201d \u1edf trong m\u00e1y bi\u1ebfn d\u00f2ng.<\/p>\n

    Hi\u1ec7n nay, m\u1ed9t s\u1ed1 m\u00e1y bi\u1ebfn d\u00f2ng d\u1ea1ng v\u00f2ng \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o th\u00eam \u201cch\u1ed1t ch\u1ebb\u201d, c\u00f3 nhi\u1ec7m v\u1ee5 gi\u00fap cho l\u1ed7 h\u1ed5ng hay khe c\u1eeda c\u1ee7a m\u00e1y bi\u1ebfn d\u00f2ng c\u00f3 th\u1ec3 m\u1edf \u0111\u01b0\u1ee3c ra, c\u00e0i \u0111\u1eb7t v\u00e0 \u0111\u00f3ng l\u1ea1i v\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i ng\u1eaft m\u1ea1ch c\u1ed1 \u0111\u1ecbnh.<\/p>\n

    \u00a0<\/p>\n\n\n

    • \"\"<\/figure><\/li><\/ul>
      Bi\u1ebfn d\u00f2ng tr\u00f2n<\/figcaption><\/figure>\n\n\n
      \"\"
      Bi\u1ebfn d\u00f2ng vu\u00f4ng<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":22977,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[13754],"class_list":["post-22976","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-t-dng-hoa","tag-bien-dong-ti"],"_links":{"self":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/22976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22976"}],"version-history":[{"count":0,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/22976\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/"}],"wp:attachment":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}