{"id":6477,"date":"2026-07-20T19:10:59","date_gmt":"2026-07-20T11:10:59","guid":{"rendered":"https:\/\/kvhipot.com\/?p=6477"},"modified":"2026-07-20T19:11:01","modified_gmt":"2026-07-20T11:11:01","slug":"cach-chon-may-do-tan-delta-phu-hop-cho-may-bien-ap-dien","status":"publish","type":"post","link":"https:\/\/kvhipot.com\/vi\/how-to-select-the-right-tan-delta-tester-for-power-transformers\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi mua: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn m\u00e1y \u0111o Tan Delta ph\u00f9 h\u1ee3p cho m\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n?"},"content":{"rendered":"

<\/h1>

B\u1ea1n c\u1ea7n m\u1ed9t thi\u1ebft b\u1ecb ki\u1ec3m tra m\u1edbi cho d\u1ef1 \u00e1n \u0111i\u1ec7n quy m\u00f4 l\u1edbn ti\u1ebfp theo c\u1ee7a m\u00ecnh. Vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb kh\u00f4ng ph\u00f9 h\u1ee3p s\u1ebd g\u00e2y l\u00e3ng ph\u00ed ti\u1ec1n b\u1ea1c v\u00e0 b\u1ecf s\u00f3t c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n. B\u1ea1n ph\u1ea3i ch\u1ecdn \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb ho\u00e0n h\u1ea3o m\u1ed9t c\u00e1ch an to\u00e0n. \u0110\u1ec3 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb \u0111o tan delta ph\u00f9 h\u1ee3p cho m\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n, b\u1ea1n c\u1ea7n ki\u1ec3m tra \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra, d\u1ea3i t\u1ea7n s\u1ed1 v\u00e0 gi\u1edbi h\u1ea1n \u0111i\u1ec7n dung c\u1ee7a thi\u1ebft b\u1ecb. Thi\u1ebft b\u1ecb \u0111o t\u1ed1t nh\u1ea5t ph\u1ea3i \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng ngh\u1ec7 ch\u1ed1ng nhi\u1ec5u, d\u1ec5 d\u00e0ng mang theo khi l\u00e0m vi\u1ec7c t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng v\u00e0 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n th\u1eed nghi\u1ec7m qu\u1ed1c t\u1ebf d\u00e0nh cho c\u00e1c t\u00e0i s\u1ea3n l\u01b0\u1edbi \u0111i\u1ec7n quy m\u00f4 l\u1edbn.<\/strong> Vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ki\u1ec3m tra t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n b\u1ed1i r\u1ed1i khi c\u00f3 qu\u00e1 nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng kh\u00e1c nhau. \u0110\u1eebng \u0111\u1ec3 nh\u1eefng b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p c\u1ea3n tr\u1edf b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t cho doanh nghi\u1ec7p c\u1ee7a m\u00ecnh.<\/p>

T\u1ea1i sao th\u1eed nghi\u1ec7m tan delta l\u1ea1i l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c trong qu\u00e1 tr\u00ecnh Ki\u1ec3m tra Ch\u1ea5p nh\u1eadn t\u1ea1i Nh\u00e0 m\u00e1y (FAT) v\u00e0 SAT?<\/h2>

Khi mua m\u1ed9t chi\u1ebfc m\u00e1y bi\u1ebfn \u00e1p n\u1eb7ng, b\u1ea1n s\u1ebd lo l\u1eafng v\u1ec1 nguy c\u01a1 h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n. M\u1ed9t chi\u1ebfc m\u00e1y b\u1ecb h\u1ecfng s\u1ebd l\u00e0m \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn ti\u1ebfn \u0111\u1ed9 d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. Vi\u1ec7c ki\u1ec3m tra b\u1eaft bu\u1ed9c s\u1ebd ch\u1ee9ng minh r\u1eb1ng thi\u1ebft b\u1ecb n\u00e0y an to\u00e0n khi s\u1eed d\u1ee5ng. Th\u1eed nghi\u1ec7m tan delta l\u00e0 b\u1eaft bu\u1ed9c trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra FAT v\u00e0 SAT v\u00ec n\u00f3 ch\u1ee9ng minh ch\u1ea5t l\u01b0\u1ee3ng c\u00e1ch \u0111i\u1ec7n tr\u01b0\u1edbc khi m\u00e1y \u0111\u01b0\u1ee3c b\u1eadt ngu\u1ed3n. Th\u1eed nghi\u1ec7m n\u00e0y cung c\u1ea5p cho c\u00e1c nh\u00e0 th\u1ea7u EPC m\u1ed9t c\u01a1 s\u1edf ph\u00e1p l\u00fd. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea3o v\u1ec7 h\u1ecd kh\u1ecfi b\u1ecb quy tr\u00e1ch nhi\u1ec7m n\u1ebfu m\u00e1y bi\u1ebfn \u00e1p sau n\u00e0y g\u1eb7p s\u1ef1 c\u1ed1 do th\u1eddi ti\u1ebft x\u1ea5u ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 l\u01b0\u1edbi \u0111i\u1ec7n.<\/strong> ! T\u00f4i l\u00e0m vi\u1ec7c v\u1edbi nhi\u1ec1u nh\u00e0 th\u1ea7u EPC tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Vi\u1ec7c ki\u1ec3m so\u00e1t r\u1ee7i ro l\u00e0 \u0111i\u1ec1u quan tr\u1ecdng nh\u1ea5t \u0111\u1ed1i v\u1edbi h\u1ecd. M\u1ed9t nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p m\u1edbi. Nh\u00e0 m\u00e1y ti\u1ebfn h\u00e0nh ki\u1ec3m tra thi\u1ebft b\u1ecb n\u00e0y. Ch\u00fang ta g\u1ecdi \u0111\u00e2y l\u00e0 Th\u1eed nghi\u1ec7m Ch\u1ea5p nh\u1eadn t\u1ea1i Nh\u00e0 m\u00e1y (FAT). Sau \u0111\u00f3, c\u00f4ng nh\u00e2n s\u1ebd \u0111\u01b0a chi\u1ebfc m\u00e1y kh\u1ed5ng l\u1ed3 n\u00e0y l\u00ean t\u00e0u. Con t\u00e0u v\u01b0\u1ee3t \u0111\u1ea1i d\u01b0\u01a1ng. Chi\u1ebfc m\u00e1y ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi \u0111\u1ed9 \u1ea9m, c\u00e1c va \u0111\u1eadp v\u1eadt l\u00fd v\u00e0 th\u1eddi ti\u1ebft x\u1ea5u. C\u00f4ng nh\u00e2n l\u1eafp \u0111\u1eb7t m\u00e1y t\u1ea1i c\u00f4ng tr\u01b0\u1eddng. H\u1ecd ph\u1ea3i ki\u1ec3m tra l\u1ea1i m\u00e1y m\u1ed9t l\u1ea7n n\u1eefa. Ch\u00fang ta g\u1ecdi \u0111\u00e2y l\u00e0 Th\u1eed nghi\u1ec7m Ch\u1ea5p nh\u1eadn t\u1ea1i C\u00f4ng tr\u01b0\u1eddng (SAT).<\/p>

B\u1ea3o v\u1ec7 kho\u1ea3n \u0111\u1ea7u t\u01b0 c\u1ee7a b\u1ea1n<\/h3>

K\u1ebft qu\u1ea3 ki\u1ec3m tra SAT ph\u1ea3i tr\u00f9ng kh\u1edbp v\u1edbi k\u1ebft qu\u1ea3 ki\u1ec3m tra FAT. N\u1ebfu c\u00e1c con s\u1ed1 kh\u00e1c nhau, b\u1ea1n s\u1ebd g\u1eb7p ph\u1ea3i m\u1ed9t v\u1ea5n \u0111\u1ec1 r\u1ea5t nghi\u00eam tr\u1ecdng. C\u00f3 th\u1ec3 n\u01b0\u1edbc \u0111\u00e3 x\u00e2m nh\u1eadp v\u00e0o d\u1ea7u trong su\u1ed1t chuy\u1ebfn v\u1eadn chuy\u1ec3n d\u00e0i. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u n\u00e0y \u0111\u1ec3 bu\u1ed9c nh\u00e0 m\u00e1y ho\u1eb7c c\u00f4ng ty v\u1eadn chuy\u1ec3n ph\u1ea3i b\u1ed3i th\u01b0\u1eddng thi\u1ec7t h\u1ea1i.<\/p>

Giai \u0111o\u1ea1n th\u1eed nghi\u1ec7m<\/th>V\u1ecb tr\u00ed<\/th>M\u1ee5c ti\u00eau ch\u00ednh<\/th>T\u00e1c \u0111\u1ed9ng c\u1ee7a k\u1ebft qu\u1ea3<\/th><\/tr><\/thead>
FAT<\/strong><\/td>S\u00e0n nh\u00e0 m\u00e1y<\/td>Ch\u1ee9ng minh ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng<\/td>Nh\u00e0 m\u00e1y nh\u1eadn \u0111\u01b0\u1ee3c ti\u1ec1n thanh to\u00e1n<\/td><\/tr>
Giao th\u00f4ng<\/strong><\/td>Bi\u1ec3n hay \u0110\u01b0\u1eddng b\u1ed9<\/td>Di chuy\u1ec3n an to\u00e0n<\/td>Nguy c\u01a1 cao do \u0111\u1ed9 \u1ea9m<\/td><\/tr>
SAT<\/strong><\/td>\u0110\u1ecba \u0111i\u1ec3m d\u1ef1 \u00e1n<\/td>Ch\u1ee9ng minh vi\u1ec7c giao h\u00e0ng an to\u00e0n<\/td>EPC kh\u00f4ng ch\u1ecbu tr\u00e1ch nhi\u1ec7m ph\u00e1p l\u00fd<\/td><\/tr><\/tbody><\/table><\/figure>

Vi\u1ec7c l\u01b0u gi\u1eef c\u00e1c h\u1ed3 s\u01a1 ki\u1ec3m tra n\u00e0y s\u1ebd gi\u00fap b\u1ea1n b\u1ea3o v\u1ec7 c\u00f4ng ty kh\u1ecfi nh\u1eefng r\u1eafc r\u1ed1i ph\u00e1p l\u00fd trong t\u01b0\u01a1ng lai. M\u1ed9t thi\u1ebft b\u1ecb ki\u1ec3m tra KVHIPOT ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd cung c\u1ea5p cho b\u1ea1n nh\u1eefng s\u1ed1 li\u1ec7u ch\u00ednh x\u00e1c \u0111\u1ec3 l\u00e0m b\u1eb1ng ch\u1ee9ng cho l\u1eadp lu\u1eadn c\u1ee7a b\u1ea1n. B\u1ea1n s\u1ebd kh\u00f4ng bao gi\u1edd ph\u1ea3i ph\u1ecfng \u0111o\u00e1n v\u1ec1 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u1ee7a m\u00e1y m\u00f3c.<\/p>

Th\u1eed nghi\u1ec7m tan delta gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 s\u1edbm trong c\u00e1c d\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o?<\/h2>

C\u00e1c trang tr\u1ea1i n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 gi\u00f3 ho\u1ea1t \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft kh\u1eafc nghi\u1ec7t. Vi\u1ec7c m\u1ea5t \u0111i\u1ec7n \u0111\u1ed9t ng\u1ed9t s\u1ebd khi\u1ebfn b\u1ea1n ph\u1ea3i ch\u1ecbu t\u1ed5n th\u1ea5t l\u1edbn v\u1ec1 t\u00e0i ch\u00ednh. B\u1ea1n ph\u1ea3i ph\u00e1t hi\u1ec7n ra c\u00e1c \u0111i\u1ec3m y\u1ebfu tr\u01b0\u1edbc khi to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.\u00a0Th\u1eed nghi\u1ec7m Tan delta gi\u00fap ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 s\u1edbm trong c\u00e1c d\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o b\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n s\u1edbm l\u01b0\u1ee3ng n\u01b0\u1edbc vi m\u00f4 b\u00ean trong v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n. C\u00e1c m\u00e1y bi\u1ebfn \u00e1p d\u00f9ng cho \u0111i\u1ec7n gi\u00f3 v\u00e0 \u0111i\u1ec7n m\u1eb7t tr\u1eddi ph\u1ea3i ch\u1ecbu t\u1ea3i \u0111i\u1ec7n thay \u0111\u1ed5i li\u00ean t\u1ee5c. \u00c1p l\u1ef1c n\u00e0y l\u00e0m suy gi\u1ea3m kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n m\u1ed9t c\u00e1ch nhanh ch\u00f3ng. Th\u1eed nghi\u1ec7m n\u00e0y ph\u00e1t hi\u1ec7n ra h\u01b0 h\u1ecfng n\u00e0y tr\u01b0\u1edbc khi x\u1ea3y ra s\u1ef1 c\u1ed1 m\u1ea5t \u0111i\u1ec7n to\u00e0n b\u1ed9 m\u1ea1ng l\u01b0\u1edbi.<\/strong>\u00a0<\/p>

\"\"<\/figure>

Ng\u00e0y nay, c\u00e1c d\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o \u0111ang ph\u00e1t tri\u1ec3n r\u1ea5t nhanh. T\u00f4i \u0111\u00e3 \u0111\u1ebfn th\u0103m nhi\u1ec1u trang tr\u1ea1i n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi \u1edf Trung \u0110\u00f4ng v\u00e0 c\u00e1c trang tr\u1ea1i gi\u00f3 \u1edf \u0110\u00f4ng Nam \u00c1. Nh\u1eefng nh\u00e0 m\u00e1y \u0111i\u1ec7n xanh n\u00e0y s\u1eed d\u1ee5ng c\u00e1c m\u00e1y bi\u1ebfn \u00e1p t\u0103ng \u00e1p \u0111\u1eb7c bi\u1ec7t. Nh\u1eefng m\u00e1y bi\u1ebfn \u00e1p n\u00e0y ph\u1ea3i ch\u1ecbu \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng v\u00f4 c\u00f9ng kh\u1eafc nghi\u1ec7t. Trong khi \u0111\u00f3, m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p th\u00f4ng th\u01b0\u1eddng trong th\u00e0nh ph\u1ed1 nh\u1eadn ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh su\u1ed1t c\u1ea3 ng\u00e0y. Trong khi \u0111\u00f3, m\u00e1y bi\u1ebfn \u00e1p t\u1ea1i trang tr\u1ea1i n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi nh\u1eadn c\u00f4ng su\u1ea5t t\u1ed1i \u0111a v\u00e0o bu\u1ed5i tr\u01b0a v\u00e0 kh\u00f4ng c\u00f3 c\u00f4ng su\u1ea5t n\u00e0o v\u00e0o ban \u0111\u00eam. Chu k\u1ef3 n\u00f3ng l\u00ean v\u00e0 ngu\u1ed9i \u0111i nhanh ch\u00f3ng n\u00e0y l\u00e0m h\u1ecfng l\u1edbp c\u00e1ch \u0111i\u1ec7n b\u1eb1ng gi\u1ea5y m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/p>

Qu\u1ea3n l\u00fd c\u0103ng th\u1eb3ng nhi\u1ec7t<\/h3>

\u00c1nh n\u1eafng gay g\u1eaft v\u00e0 m\u01b0a l\u1edbn c\u0169ng g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea7n b\u00ean ngo\u00e0i c\u1ee7a m\u00e1y. S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed9t ng\u1ed9t khi\u1ebfn h\u01a1i \u1ea9m trong kh\u00f4ng kh\u00ed ng\u1ea5m v\u00e0o d\u1ea7u. H\u01a1i \u1ea9m n\u00e0y c\u00f3 t\u00e1c \u0111\u1ed9ng nh\u01b0 ch\u1ea5t \u0111\u1ed9c \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.<\/p>

Lo\u1ea1i m\u00e1y bi\u1ebfn \u00e1p<\/th>D\u00f2ng \u0111i\u1ec7n<\/th>M\u1ee9c \u0111\u1ed9 c\u0103ng th\u1eb3ng do c\u00e1ch nhi\u1ec7t<\/th>R\u1ee7i ro th\u1ea5t b\u1ea1i<\/th><\/tr><\/thead>
Tr\u1ea1m bi\u1ebfn \u00e1p th\u00e0nh ph\u1ed1<\/strong><\/td>R\u1ea5t \u1ed5n \u0111\u1ecbnh<\/td>Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>B\u00ecnh th\u01b0\u1eddng<\/td><\/tr>
Trang tr\u1ea1i gi\u00f3<\/strong><\/td>Bi\u1ebfn \u0111\u1ed9ng m\u1ea1nh<\/td>R\u1ea5t cao<\/td>N\u1eb7ng<\/td><\/tr>
Trang tr\u1ea1i n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi<\/strong><\/td>Chu k\u1ef3 h\u00e0ng ng\u00e0y<\/td>Cao<\/td>N\u1eb7ng<\/td><\/tr><\/tbody><\/table><\/figure>

B\u1ea1n ph\u1ea3i ki\u1ec3m tra c\u00e1c m\u00e1y n\u00e0y th\u01b0\u1eddng xuy\u00ean h\u01a1n so v\u1edbi c\u00e1c m\u00e1y th\u00f4ng th\u01b0\u1eddng trong th\u00e0nh ph\u1ed1. Th\u1eed nghi\u1ec7m tan delta cho bi\u1ebft ch\u00ednh x\u00e1c t\u1ed1c \u0111\u1ed9 gi\u1ea5y b\u1ecb ch\u00e1y. B\u1ea1n c\u00f3 th\u1ec3 thay d\u1ea7u trong th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch. B\u1ea1n s\u1ebd ng\u0103n ch\u1eb7n \u0111\u01b0\u1ee3c c\u00e1c v\u1ee5 n\u1ed5 b\u1ea5t ng\u1edd v\u00e0 \u0111\u1ea3m b\u1ea3o ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng xanh ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c cung c\u1ea5p cho th\u00e0nh ph\u1ed1.<\/p>

C\u00e1c ti\u00eau chu\u1ea9n IEEE v\u00e0 IEC v\u1ec1 vi\u1ec7c \u0111\u01b0a m\u00e1y bi\u1ebfn \u00e1p v\u00e0o v\u1eadn h\u00e0nh l\u00e0 g\u00ec?<\/h2>

B\u1ea1n n\u1ed9p b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m cho c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c. H\u1ecd t\u1eeb ch\u1ed1i b\u00e1o c\u00e1o c\u1ee7a b\u1ea1n v\u00ec thi\u1ebfu b\u1eb1ng ch\u1ee9ng ti\u00eau chu\u1ea9n. B\u1ea1n ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh qu\u1ed1c t\u1ebf \u0111\u1ec3 d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t.\u00a0C\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a IEEE v\u00e0 IEC v\u1ec1 vi\u1ec7c \u0111\u01b0a m\u00e1y bi\u1ebfn \u00e1p v\u00e0o v\u1eadn h\u00e0nh quy \u0111\u1ecbnh c\u00e1c quy t\u1eafc nghi\u00eam ng\u1eb7t \u0111\u1ed1i v\u1edbi vi\u1ec7c ki\u1ec3m tra c\u00e1ch \u0111i\u1ec7n. Ti\u00eau chu\u1ea9n IEC 60076 v\u00e0 IEEE C57.152 y\u00eau c\u1ea7u c\u00e1c gi\u00e1 tr\u1ecb tan delta c\u1ee5 th\u1ec3 \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb m\u1edbi. Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh to\u00e0n c\u1ea7u n\u00e0y \u0111\u1ea3m b\u1ea3o m\u00e1y m\u00f3c ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 \u0111\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 c\u00e1c y\u00eau c\u1ea7u ki\u1ec3m tra ch\u00ednh th\u1ee9c t\u1eeb ph\u00eda ch\u00ednh ph\u1ee7 v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb cung c\u1ea5p \u0111i\u1ec7n.<\/strong>\u00a0\u00a0

Th\u00eam v\u00e0o ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u1ee7a Photoshop<\/title><\/path><\/path><\/path><\/svg><\/div><\/p>

B\u1ea1n kh\u00f4ng th\u1ec3 ch\u1ec9 d\u1ef1a v\u00e0o ph\u1ecfng \u0111o\u00e1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed9t thi\u1ebft b\u1ecb t\u1ed1t hay x\u1ea5u. B\u1ea1n c\u1ea7n c\u00f3 m\u1ed9t b\u1ed9 quy chu\u1ea9n. Tr\u00ean th\u1ebf gi\u1edbi hi\u1ec7n nay c\u00f3 hai b\u1ed9 quy chu\u1ea9n ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c th\u1eed nghi\u1ec7m \u0111i\u1ec7n \u00e1p cao. C\u00e1c qu\u1ed1c gia \u1edf B\u1eafc M\u1ef9 ch\u1ee7 y\u1ebfu \u00e1p d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n IEEE. C\u00e1c qu\u1ed1c gia \u1edf ch\u00e2u \u00c2u v\u00e0 ch\u00e2u \u00c1 ch\u1ee7 y\u1ebfu \u00e1p d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n IEC. T\u00f4i lu\u00f4n h\u1ecfi kh\u00e1ch h\u00e0ng c\u1ee7a m\u00ecnh xem l\u01b0\u1edbi \u0111i\u1ec7n \u0111\u1ecba ph\u01b0\u01a1ng c\u1ee7a h\u1ecd y\u00eau c\u1ea7u tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n n\u00e0o.<\/p>

\u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u to\u00e0n c\u1ea7u<\/h3>

C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y ch\u1ec9 ra m\u1ee9c \u0111i\u1ec7n \u00e1p ch\u00ednh x\u00e1c c\u1ea7n \u00e1p d\u1ee5ng trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m. Ch\u00fang c\u0169ng ch\u1ec9 ra c\u00e1c h\u1ec7 s\u1ed1 hi\u1ec7u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ea7n s\u1eed d\u1ee5ng. K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u1edf 0 \u0111\u1ed9 s\u1ebd kh\u00e1c v\u1edbi k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u1edf 40 \u0111\u1ed9. C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y cung c\u1ea5p m\u1ed9t c\u00f4ng th\u1ee9c to\u00e1n h\u1ecdc \u0111\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y.<\/p>

T\u00ean ti\u00eau chu\u1ea9n<\/th>Khu v\u1ef1c ch\u00ednh<\/th>L\u0129nh v\u1ef1c tr\u1ecdng t\u00e2m<\/th>H\u00e0nh \u0111\u1ed9ng c\u1ea7n th\u1ef1c hi\u1ec7n<\/th><\/tr><\/thead>
IEC 60076<\/strong><\/td>Ch\u00e2u \u00c2u \/ Ch\u00e2u \u00c1<\/td>M\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n<\/td>C\u00e1c quy \u0111\u1ecbnh chung v\u1ec1 thi c\u1eed<\/td><\/tr>
IEEE C57.152<\/strong><\/td>Ch\u00e2u M\u1ef9<\/td>Th\u1eed nghi\u1ec7m th\u1ef1c \u0111\u1ecba<\/td>gi\u1edbi h\u1ea1n \u0111i\u1ec3m \u0111\u1eadu nghi\u00eam ng\u1eb7t<\/td><\/tr>
C\u00e1c h\u01b0\u1edbng d\u1eabn c\u1ee7a CIGRE<\/strong><\/td>To\u00e0n c\u1ea7u<\/td>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t<\/td>L\u1eddi khuy\u00ean v\u1ec1 b\u1ea3o tr\u00ec<\/td><\/tr><\/tbody><\/table><\/figure>

Thi\u1ebft b\u1ecb ki\u1ec3m tra KVHIPOT m\u1edbi c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n c\u00e1c c\u00f4ng th\u1ee9c ti\u00eau chu\u1ea9n n\u00e0y trong ph\u1ea7n m\u1ec1m. M\u00e1y s\u1ebd t\u1ef1 \u0111\u1ed9ng th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh gi\u00fap b\u1ea1n. B\u1ea1n ch\u1ec9 c\u1ea7n in b\u00e1o c\u00e1o ra l\u00e0 c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c s\u1ebd ch\u1ea5p nh\u1eadn ngay l\u1eadp t\u1ee9c. B\u1ea1n s\u1ebd ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c nhanh h\u01a1n v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c thanh to\u00e1n \u0111\u00fang h\u1ea1n.<\/p>

C\u00e1c d\u1ecbch v\u1ee5 ki\u1ec3m \u0111\u1ecbnh c\u1ee7a b\u00ean th\u1ee9 ba s\u1eed d\u1ee5ng d\u1eef li\u1ec7u v\u1ec1 h\u1ec7 s\u1ed1 ti\u00eau t\u00e1n nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c c\u1ee7a h\u1ecd?<\/h2>

Kh\u00e1ch h\u00e0ng c\u1ee7a b\u1ea1n \u0111ang nghi ng\u1edd v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c b\u1ea3o tr\u00ec c\u1ee7a b\u1ea1n. M\u1ed9t kh\u00e1ch h\u00e0ng kh\u00f4ng h\u00e0i l\u00f2ng s\u1ebd kh\u00f4ng thu\u00ea b\u1ea1n l\u1ea7n n\u1eefa. B\u1ea1n c\u1ea7n c\u00f3 d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 ch\u1ee9ng minh r\u1eb1ng c\u00f4ng vi\u1ec7c s\u1eeda ch\u1eefa c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ho\u00e0n h\u1ea3o.\u00a0C\u00e1c d\u1ecbch v\u1ee5 ki\u1ec3m \u0111\u1ecbnh c\u1ee7a b\u00ean th\u1ee9 ba s\u1eed d\u1ee5ng d\u1eef li\u1ec7u v\u1ec1 h\u1ec7 s\u1ed1 ti\u00eau t\u00e1n \u0111\u1ec3 ch\u1ee9ng minh thi\u1ebft b\u1ecb ho\u00e0n to\u00e0n an to\u00e0n sau khi s\u1eeda ch\u1eefa. H\u1ecd tr\u00ecnh b\u00e0y cho kh\u00e1ch h\u00e0ng con s\u1ed1 cao tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh l\u00e0m s\u1ea1ch d\u1ea7u. Sau khi l\u00e0m s\u1ea1ch, h\u1ecd tr\u00ecnh b\u00e0y con s\u1ed1 r\u1ea5t th\u1ea5p. D\u1eef li\u1ec7u r\u00f5 r\u00e0ng n\u00e0y gi\u00fap x\u00e2y d\u1ef1ng ni\u1ec1m tin v\u1eefng ch\u1eafc v\u00e0 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 c\u1ee7a h\u1ecd.<\/strong>\u00a0<\/p>

<\/p>

T\u00f4i \u0111\u00e3 trao \u0111\u1ed5i v\u1edbi nhi\u1ec1u c\u00f4ng ty ki\u1ec3m \u0111\u1ecbnh \u0111i\u1ec7n c\u1ee7a b\u00ean th\u1ee9 ba. H\u1ecd kh\u00f4ng s\u1edf h\u1eefu c\u00e1c m\u00e1y bi\u1ebfn \u00e1p. H\u1ecd ch\u1ec9 ti\u1ebfn h\u00e0nh s\u1eeda ch\u1eefa ch\u00fang cho c\u00e1c nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p quy m\u00f4 l\u1edbn ho\u1eb7c c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u. C\u00e1c c\u00f4ng ty d\u1ecbch v\u1ee5 n\u00e0y \u0111ang ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn. H\u1ecd t\u00ednh ph\u00ed r\u1ea5t cao cho vi\u1ec7c l\u1ecdc d\u1ea7u m\u00e1y bi\u1ebfn \u00e1p. Kh\u00e1ch h\u00e0ng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y d\u1ea7u \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch b\u00ean trong b\u1ec3 kim lo\u1ea1i t\u1ed1i m\u00e0u. Kh\u00e1ch h\u00e0ng mu\u1ed1n c\u00f3 b\u1eb1ng ch\u1ee9ng cho th\u1ea5y d\u1ecbch v\u1ee5 \u0111\u1eaft \u0111\u1ecf n\u00e0y th\u1ef1c s\u1ef1 mang l\u1ea1i hi\u1ec7u qu\u1ea3.<\/p>

Ch\u1ee9ng minh gi\u00e1 tr\u1ecb c\u1ee7a d\u1ecbch v\u1ee5<\/h3>

C\u00f4ng ty d\u1ecbch v\u1ee5 s\u1eed d\u1ee5ng m\u00e1y \u0111o tan delta \u0111\u1ec3 cung c\u1ea5p b\u1eb1ng ch\u1ee9ng ch\u00ednh x\u00e1c n\u00e0y. Thi\u1ebft b\u1ecb n\u00e0y cung c\u1ea5p cho h\u1ecd m\u1ed9t \u201cd\u1ea5u v\u00e2n tay\u201d k\u1ef9 thu\u1eadt s\u1ed1 v\u1ec1 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y m\u00f3c.<\/p>

Giai \u0111o\u1ea1n d\u1ecbch v\u1ee5<\/th>Gi\u00e1 tr\u1ecb Tan Delta<\/th>Nh\u1eadn th\u1ee9c c\u1ee7a kh\u00e1ch h\u00e0ng<\/th><\/tr><\/thead>
Tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5<\/strong><\/td>2.5% (Nguy hi\u1ec3m)<\/td>Lo l\u1eafng v\u1ec1 th\u1ea5t b\u1ea1i<\/td><\/tr>
Trong th\u1eddi gian cung c\u1ea5p d\u1ecbch v\u1ee5<\/strong><\/td>D\u1ea7u \u0111ang \u0111\u01b0\u1ee3c l\u1ecdc<\/td>Ch\u1edd k\u1ebft qu\u1ea3<\/td><\/tr>
D\u1ecbch v\u1ee5 h\u1eadu m\u00e3i<\/strong><\/td>0,4% (Ho\u00e0n h\u1ea3o)<\/td>Vui v\u1ebb v\u00e0 t\u1ef1 tin<\/td><\/tr><\/tbody><\/table><\/figure>

C\u00f4ng ty ki\u1ec3m \u0111\u1ecbnh in ra m\u1ed9t b\u00e1o c\u00e1o cu\u1ed1i c\u00f9ng k\u00e8m theo c\u00e1c bi\u1ec3u \u0111\u1ed3 r\u00f5 r\u00e0ng. Kh\u00e1ch h\u00e0ng th\u1ea5y con s\u1ed1 gi\u1ea3m t\u1eeb v\u00f9ng nguy hi\u1ec3m xu\u1ed1ng v\u00f9ng l\u00fd t\u01b0\u1edfng. C\u00f4ng ty ki\u1ec3m \u0111\u1ecbnh s\u1eed d\u1ee5ng t\u00e0i li\u1ec7u n\u00e0y nh\u01b0 m\u1ed9t b\u1ea3o \u0111\u1ea3m ph\u00e1p l\u00fd cho c\u00f4ng vi\u1ec7c c\u1ee7a h\u1ecd. H\u1ecd gi\u00e0nh \u0111\u01b0\u1ee3c nhi\u1ec1u h\u1ee3p \u0111\u1ed3ng d\u1ecbch v\u1ee5 h\u01a1n v\u00ec cung c\u1ea5p nh\u1eefng d\u1eef li\u1ec7u r\u00f5 r\u00e0ng, mang t\u00ednh khoa h\u1ecdc thay v\u00ec ch\u1ec9 l\u00e0 nh\u1eefng l\u1eddi h\u1ee9a su\u00f4ng.<\/p>

<\/p>","protected":false},"excerpt":{"rendered":"

Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 l\u01b0u gi\u1eef h\u1ed3 s\u01a1 ki\u1ec3m tra ch\u00ednh x\u00e1c s\u1ebd \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng an to\u00e0n trong nhi\u1ec1u th\u1eadp k\u1ef7.<\/p>","protected":false},"author":1,"featured_media":6516,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[35],"tags":[],"_links":{"self":[{"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/posts\/6477"}],"collection":[{"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/comments?post=6477"}],"version-history":[{"count":2,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/posts\/6477\/revisions"}],"predecessor-version":[{"id":6517,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/posts\/6477\/revisions\/6517"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/media\/6516"}],"wp:attachment":[{"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/media?parent=6477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/categories?post=6477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kvhipot.com\/vi\/wp-json\/wp\/v2\/tags?post=6477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}