{"id":42854,"date":"2021-02-02T13:03:00","date_gmt":"2021-02-02T13:03:00","guid":{"rendered":"https:\/\/motorgenie.com\/cach-kiem-tra-cuon-day-dong-co-tren-dong-co-ba-pha\/"},"modified":"2024-07-09T14:15:39","modified_gmt":"2024-07-09T14:15:39","slug":"cach-kiem-tra-cuon-day-dong-co-tren-dong-co-ba-pha","status":"publish","type":"post","link":"https:\/\/motorgenie.com\/vi\/cach-kiem-tra-cuon-day-dong-co-tren-dong-co-ba-pha\/","title":{"rendered":"C\u00e1ch ki\u1ec3m tra cu\u1ed9n d\u00e2y \u0111\u1ed9ng c\u01a1 tr\u00ean \u0111\u1ed9ng c\u01a1 ba pha"},"content":{"rendered":" \n

Los bobinados del motor son hilos Conductor ghi danh alrededor de un nuleo magn\u00e9tico; t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi camino cho vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng v\u00e0 cree t\u1ea1o ra m\u1ed9t s\u1ee9c m\u1ea1nh l\u1edbn \u0111\u1ec3 t\u1ea1o ra m\u1ed9t c\u00e1nh qu\u1ea1t. Nh\u01b0 m\u1ed9t chi\u1ebfc b\u00e1nh xe c\u00f3 \u0111\u1ed9ng c\u01a1, b\u1ea1n c\u00f3 th\u1ec3 r\u01a1i v\u00e0o t\u00ecnh tr\u1ea1ng kh\u00f3 kh\u0103n. B\u1ea1n c\u00f3 th\u1ec3 r\u01a1i v\u00e0o t\u00ecnh tr\u1ea1ng m\u1ea5t \u0111\u1ed9ng c\u01a1, rara vez lo hacen los d\u00e2y d\u1eabn propiamente dichos, sino el revestimiento de pol\u00edmero (aislamiento) que rodea a los Conductores. V\u1eadt li\u1ec7u polim\u00e9rico es org\u00e1nico en su composici\u00f3n qu\u00edmica y is\u00e1 sujeto a cambios debido al envejecimiento, la carbonizaci\u00f3n, el calor u ortras condiciones adversas que hacen que cambie la composici\u00f3n qu\u00edmica del v\u1eadt li\u1ec7u polim\u00e9rico. Nh\u1eefng cambios n\u00e0y kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n h\u00ecnh \u1ea3nh ph\u1ee9c t\u1ea1p, kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb n\u00e0o v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 truy\u1ec1n th\u1ed1ng c\u1ee7a b\u1ed9 m\u00e1y t\u00ednh \u0111i\u1ec7n t\u1eed, nh\u01b0 ohm\u00edmetro ho\u1eb7c megaohm\u00edmetro.<\/p> \n \n

Ng\u01b0\u1eddi \u0103n n\u0103n h\u1ed1i h\u1eadn v\u1ec1 vi\u1ec7c l\u00e0m h\u1ecfng \u0111\u1ed9ng c\u01a1 \u0111\u00e3 th\u00fac \u0111\u1ea9y ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t, th\u1ecb tr\u01b0\u1edfng \u0103n u\u1ed1ng l\u00e0nh m\u1ea1nh, c\u00f3 th\u1ec3 l\u00e0m t\u1ed5n th\u01b0\u01a1ng c\u00e1 nh\u00e2n. Dado que la mayor\u00eda de los fallos de aislamiento se productionn con el tiempo, la tecnolog\u00eda MCA proporciona las mediciones necesarias para identificar estos peque\u00f1os cambios que de deminan el estado del sistema de aislamiento del devanado. Saber c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp cho nh\u1eefng g\u00ec bobinados cho ph\u00e9p b\u1ea1n trang b\u1ecb cho m\u00ecnh ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 \u0111\u1ed9ng v\u00e0 l\u00e0m \u0111i\u1ec1u \u0111\u00f3 \u0111\u1ec3 tr\u00e1nh nh\u1eefng sai l\u1ea7m kh\u00f4ng mong mu\u1ed1n tr\u00ean \u0111\u1ed9ng c\u01a1.<\/p> \n \n

\"\"\/<\/figure> \n \n

C\u00f3mo comprobar el aislamiento de la pared detierra<\/h2> \n \n

M\u1ed9t c\u1ea5p \u0111\u1ed9 ho\u1eb7c m\u1ed9t m\u1ea1ch \u0111i\u1ec7n t\u1eed c\u1ea5p \u0111\u1ed9 s\u1ebd t\u1ea1o ra gi\u00e1 tr\u1ecb c\u1ee7a s\u1ee9c \u0111\u1ec1 kh\u00e1ng c\u1ee7a aislamiento de la pared de Tierra disminuye v\u00e0 cho ph\u00e9p b\u1ea1n truy c\u1eadp v\u00e0o m\u1ed9t c\u1ea5p \u0111\u1ed9 oa m\u1ed9t ph\u1ea7n c\u1ee7a exuesta de la m\u00e1quina. N\u00f3 t\u1ea1o ra m\u1ed9t v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n, b\u1ea1n c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 m\u1ee9c \u0111\u1ed9 c\u0103ng th\u1eb3ng c\u1ee7a th\u1ef1c ph\u1ea9m c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u00e9o d\u00e0i th\u1eddi gian \u0103n c\u1ee7a b\u1ea1n v\u00e0 c\u00e1c b\u1eefa \u0103n kh\u00e1c c\u1ee7a m\u00e1quina. \u0110\u1ec3 so s\u00e1nh b\u1ec7nh nh\u00e2n v\u1edbi m\u1ee9c \u0111\u1ed9 ngang b\u1eb1ng, c\u00e1c lo\u1ea1i thu\u1ed1c hi\u1ec7n c\u00f3 s\u1ebd \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf kh\u1ecfi d\u00e2y c\u00e1p T1, T2, T3 \u1edf c\u1ea5p \u0111\u1ed9.<\/p> \n \n

Las mejores practicas comprueban la Trayectoria del bobinado a Tierra. \u0110\u00e2y l\u00e0 c\u00e1ch gi\u00fap b\u1ea1n gi\u1ea3m c\u0103ng th\u1eb3ng li\u00ean t\u1ee5c trong \u0111\u1ed9ng c\u01a1 v\u00e0 gi\u1eefa vi\u1ec7c t\u1eadp luy\u1ec7n d\u1ec5 d\u00e0ng khi \u0111i du l\u1ecbch \u0111\u1ebfn m\u1ed9t c\u1ea5p \u0111\u1ed9 n\u00e0o \u0111\u00f3:<\/p> \n \n

1) C\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9ng c\u01a1 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng v\u00f4n k\u1ebf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh ch\u1ee9c n\u0103ng.<\/p> \n \n

2) Coloque ambos cable de prueba del Instrumento a Tierra v\u00e0 Verifique una Conexi\u00f3n s\u00f3lida a Tierra del Cable del Instrumento. Mida la resistencia del aislamiento a Tierra (IRG). Este gi\u00e1 tr\u1ecb debe ser 0 M\u03a9. N\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t gi\u00e1 tr\u1ecb kh\u00e1c bi\u1ec7t so v\u1edbi 0, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i c\u00e1p v\u1edbi m\u1ee9c gi\u00e1 v\u00e0 m\u1ee9c \u0111\u1ed9 th\u1ef1c t\u1ebf \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t b\u00e0i gi\u1ea3ng 0.<\/p> \n \n

3) Lo\u1ea1i b\u1ecf c\u00e1c d\u00e2y c\u00e1p b\u1ecb h\u1ecfng v\u00e0 k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 lo\u1ea1i c\u00e1p c\u1ee7a \u0111\u1ed9ng c\u01a1. Ti\u1ebfp t\u1ee5c, mida el valor de la resistencia de aislamiento de cada cable a Tierra v\u00e0 verifique que el valor supera el valor m\u00ednimo recomendado para la tensi\u00f3n de alimentaci\u00f3n de los motores.<\/p> \n \n

NEMA, IEC, IEEE, NFPA c\u00f3 c\u00e1c b\u1ea3ng kh\u00e1c nhau v\u00e0 ch\u1ec9 th\u1ecb v\u1ec1 \u0111\u1ed9 c\u0103ng c\u1ee7a khuy\u1ebfn c\u00e1o v\u00e0 gi\u00e1 tr\u1ecb th\u1ea5p nh\u1ea5t c\u1ee7a aislamiento \u1edf c\u1ea5p \u0111\u1ed9 ch\u1ee9c n\u0103ng c\u1ee7a \u0111\u1ed9 c\u0103ng c\u1ee7a th\u1ef1c ph\u1ea9m \u0111\u1ed9ng c\u01a1. \u0110\u00e2y l\u00e0 c\u00e1ch x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c \u0111i\u1ec3m y\u1ebfu c\u1ee7a h\u1ec7 th\u1ed1ng aislamiento del muro de Tierra. Y\u1ebfu t\u1ed1 t\u1ea3n nhi\u1ec7t v\u00e0 kh\u1ea3 n\u0103ng ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng theo t\u1ef7 l\u1ec7 c\u1ea5p \u0111\u1ed9 l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u b\u1ed5 sung cho m\u1ee9c \u0111\u1ed9 chung c\u1ee7a aislamiento. Th\u1ee7 t\u1ee5c n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p, v\u00ec v\u1eady trong m\u1ed9t \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 c\u0103ng li\u00ean t\u1ee5c, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p thay th\u1ebf th\u1ee9 hai \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t ch\u1ec9 b\u00e1o ch\u00ednh v\u1ec1 m\u1ee9c \u0111\u1ed9 chung c\u1ee7a aislamiento de la pared de Tierra.<\/p> \n \n

C\u00f3mo comprobar si los devanados est\u00e1n conectados, abiertos or corto Circuitados<\/h2> \n \n

V\u1ea5n \u0111\u1ec1 v\u1ec1 m\u1ed1i quan h\u1ec7:<\/strong> M\u1ea5t \u0111i v\u1ea5n \u0111\u1ec1 v\u1ec1 s\u1ef1 c\u00e2n b\u1eb1ng trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh s\u1ef1 c\u1ed1 trong m\u1ed9t \u0111\u1ed9ng c\u01a1, c\u00f3 th\u1ec3 k\u00edch \u0111\u1ed9ng m\u1ed9t calentamiento qu\u00e1 m\u1ee9c v\u00e0 m\u1ed9t sai l\u1ea7m s\u1edbm x\u1ea3y ra.\"\"<\/a><\/p> \n \n

Kh\u1ea9u \u0111\u1ed9<\/strong> : Las kh\u1ea9u \u0111\u1ed9 se s\u1ea3n xu\u1ea5t cuando un d\u00e2y d\u1eabn ho\u1eb7c d\u00e2y d\u1eabn se rompen ho\u1eb7c separan. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf vi\u1ec7c s\u1eafp x\u1ebfp \u0111\u1ed9ng c\u01a1 ho\u1eb7c l\u00e0m cho n\u00f3 ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t \u0111i\u1ec1u ki\u1ec7n “\u0111\u01a1n \u0111\u1ed9c”, lo l\u1eafng v\u1ec1 vi\u1ec7c t\u1ea1o ra m\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 qu\u00e1 m\u1ee9c, chi\u1ebfc xe m\u00e1y ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng v\u00e0 m\u1ed9t t\u00ecnh tr\u1ea1ng s\u1edbm.<\/p> \n \n

Corto Circuitos:<\/strong> Los corto Circuitos se s\u1ea3n xu\u1ea5t cuando el aislamiento que rodea a los conductes del bobinado se rompe entre los conductes. Esto allowe que la corriente fluya entre los Conductes (corto Circuito) en lugar de a trav\u00e9s de ellos. Esto crea un calentamiento en la aver\u00eda que k\u00edch \u0111\u1ed9ng m\u1ed9t th\u1ecb tr\u01b0\u1edfng xu\u1ed1ng c\u1ea5p c\u1ee7a aislamiento entre los Conductes y, en \u00faltima instancia, conduce al fallo.<\/p> \n \n

\u0110\u1ec3 mua s\u1eafm ho\u1eb7c r\u01a1i v\u00e0o t\u00ecnh tr\u1ea1ng kh\u00f3 kh\u0103n, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t lo\u1ea1t thu\u1ed1c \u1edf CA v\u00e0 CC v\u1edbi c\u00e1p \u0111\u1ed9ng c\u01a1 v\u00e0 so s\u00e1nh gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng; si las mediciones est\u00e1n equilibradas, el bobinado est\u00e1 bien; n\u1ebfu b\u1ea1n m\u1ea5t c\u00e2n b\u1eb1ng, b\u1ea1n s\u1ebd b\u1ecb m\u1ea5t c\u00e2n b\u1eb1ng. <\/p> \n \n

Las medidas recomendadas con trai:<\/p> \n \n

1) \u0110i\u1ec7n tr\u1edf<\/p> \n \n

2) \u0110\u1ed9 t\u1ef1 c\u1ea3m<\/p> \n \n

3) Tr\u1edf kh\u00e1ng<\/p> \n \n

4) \u00c1ngulo de fase<\/p> \n \n

5) Ph\u1ea3n h\u1ed3i v\u00e0 t\u1ea7n su\u1ea5t th\u1ef1c t\u1ebf<\/p> \n

\"\"<\/p> \n \n

B\u1ea1n c\u00f3 th\u1ec3 mua \u0111\u01b0\u1ee3c nh\u1eefng th\u1ee9 m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 mua \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c m\u1ed1i li\u00ean h\u1ec7:<\/p> \n \n