{"id":1464,"date":"2026-09-30T01:14:00","date_gmt":"2026-09-30T01:14:00","guid":{"rendered":"https:\/\/lanshanelectric.com\/?p=1464"},"modified":"2026-09-15T05:46:03","modified_gmt":"2026-09-15T05:46:03","slug":"mv-switchgear-qua-nong-gay-ra","status":"publish","type":"post","link":"https:\/\/lanshanelectric.com\/vi\/mv-switchgear-overheating-causes\/","title":{"rendered":"MV Switchgear Qu\u00e1 n\u00f3ng: Nguy\u00ean nh\u00e2n v\u00e0 Ki\u1ec3m tra Ch\u1ea9n \u0111o\u00e1n"},"content":{"rendered":"

MV switchgear qu\u00e1 n\u00f3ng hi\u1ebfm khi \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch b\u1edfi m\u1ed9t \u0111\u1ecdc nhi\u1ec7t \u0111\u1ed9.M\u1ed9t thanh c\u00e1i \u1ea5m \u00e1p c\u00f3 th\u1ec3 ph\u1ea3n \u00e1nh d\u00f2ng \u0111i\u1ec7n duy tr\u00ec, trong khi m\u1ed9t kh\u1edbp n\u00f3ng duy nh\u1ea5t c\u00f3 th\u1ec3 ch\u1ec9 ra s\u1ee9c \u0111\u1ec1 kh\u00e1ng b\u1ea5t th\u01b0\u1eddng.M\u1ed9t ng\u0103n n\u00f3ng c\u0169ng c\u00f3 th\u1ec3 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a lu\u1ed3ng kh\u00f4ng kh\u00ed b\u1ecb h\u1ea1n ch\u1ebf ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng cao b\u1ea5t th\u01b0\u1eddng.Nhi\u1ec7m v\u1ee5 \u0111\u1ea7u ti\u00ean do \u0111\u00f3 l\u00e0 x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec l\u00e0 n\u00f3ng, khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng n\u00e0o c\u00f3 m\u1eb7t c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p, \u0111i\u1ec1u tra an to\u00e0n v\u00e0 h\u1eefu \u00edch nh\u1ea5t t\u00e1ch t\u1ea3i h\u1ec7 th\u1ed1ng, \u0111i\u1ec1u ki\u1ec7n k\u1ebft n\u1ed1i, th\u00f4ng gi\u00f3, m\u00f4i tr\u01b0\u1eddng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u0111o l\u01b0\u1eddng. h\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch t\u1ed5 ch\u1ee9c b\u1eb1ng ch\u1ee9ng \u0111\u00f3 m\u00e0 kh\u00f4ng bi\u1ebfn m\u1ed9t tri\u1ec7u ch\u1ee9ng nhi\u1ec7t th\u00e0nh ch\u1ea9n \u0111o\u00e1n b\u1ea3o tr\u00ec ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c minh.<\/p>\n\n\n\n

T\u1ea1i Sao MV Switchgear Qu\u00e1 N\u00f3ng?<\/h2>\n\n\n\n
\"Nh\u00e2n<\/figure>\n\n\n\n

MV switchgear s\u1ea3n xu\u1ea5t nhi\u1ec7t trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng v\u00ec d\u00e2y d\u1eabn mang d\u00f2ng \u0111i\u1ec7n v\u00e0 ti\u1ebfp \u0111i\u1ec3m c\u00f3 \u0111i\u1ec7n tr\u1edf.C\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf sao cho, d\u01b0\u1edbi d\u1ecbch v\u1ee5 c\u00f4ng b\u1ed1 c\u1ee7a n\u00f3 v\u00e0 \u0111i\u1ec1u ki\u1ec7n t\u1ea3i, k\u1ebft qu\u1ea3 t\u0103ng nhi\u1ec7t \u0111\u1ed9 v\u1eabn c\u00f2n trong gi\u1edbi h\u1ea1n \u00e1p d\u1ee5ng. IEC 62271-1 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5 chung cho thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft \u0111i\u1ec7n \u00e1p cao, trong khi IEC 62271-200 \u0111\u1ecba ch\u1ec9 c\u00e1c c\u1ee5m kim lo\u1ea1i k\u00e8m theo tr\u00ean 1 kV \u0111\u1ebfn 52 kV.<\/p>\n\n\n\n

Qu\u00e1 nhi\u1ec7t b\u1eaft \u0111\u1ea7u khi th\u1ef1c t\u1ebf sinh nhi\u1ec7t ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n l\u00e0m m\u00e1t th\u1ef1c t\u1ebf kh\u1edfi h\u00e0nh t\u1eeb c\u01a1 s\u1edf thi\u1ebft k\u1ebf \u0111\u00f3, ho\u1eb7c khi m\u1ed9t k\u1ebft n\u1ed1i ph\u00e1t tri\u1ec3n s\u1ee9c \u0111\u1ec1 kh\u00e1ng b\u1ea5t th\u01b0\u1eddng. c\u00e2u h\u1ecfi h\u1eefu \u00edch do \u0111\u00f3 kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 li\u1ec7u t\u1ee7 c\u1ea3m th\u1ea5y n\u00f3ng. \u0111\u00f3 l\u00e0 li\u1ec7u m\u1ed9t th\u00e0nh ph\u1ea7n c\u00f3 n\u00f3ng h\u01a1n d\u1ef1 ki\u1ebfn cho t\u1ea3i hi\u1ec7n t\u1ea1i, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 c\u00e1c pha ho\u1eb7c m\u1ea1ch t\u01b0\u01a1ng \u0111\u01b0\u01a1ng hay kh\u00f4ng.<\/p>\n\n\n\n

\u0110\u1ec3 bi\u1ebft th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c ch\u1ee9c n\u0103ng v\u00e0 ng\u0103n, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a Lanshan l\u00e0m th\u1ebf n\u00e0o trung th\u1ebf switchgear ho\u1ea1t \u0111\u1ed9ng<\/a>.<\/p>\n\n\n\n

Gi\u1eef an to\u00e0n t\u00e1ch bi\u1ec7t v\u1edbi ch\u1ea9n \u0111o\u00e1n<\/h2>\n\n\n\n

Kh\u00f4ng n\u00ean m\u1edf, ch\u1ea1m ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch MV b\u1edfi nh\u00e2n vi\u00ean kh\u00f4ng \u0111\u1ee7 ti\u00eau chu\u1ea9n trong khi \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n.Kh\u00f3i, \u00e2m thanh h\u1ed3 quang, m\u00f9i ch\u00e1y, ho\u1ea1t \u0111\u1ed9ng b\u1ea3o v\u1ec7 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 t\u0103ng nhanh y\u00eau c\u1ea7u ph\u1ea3n \u1ee9ng kh\u1ea9n c\u1ea5p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t c\u1ee7a trang web thay v\u00ec ti\u1ebfp t\u1ee5c kh\u1eafc ph\u1ee5c s\u1ef1 c.<\/p>\n\n\n\n

Khi c\u00f4ng vi\u1ec7c khi\u1ebfn nh\u00e2n vi\u00ean ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn s\u1ed1ng, c\u00e1c quy t\u1eafc an to\u00e0n \u0111i\u1ec7n hi\u1ec7n h\u00e0nh s\u1ebd chi ph\u1ed1i ho\u1ea1t \u0111\u1ed9ng. v\u00ed d\u1ee5: OSHA 1910.333 y\u00eau c\u1ea7u c\u00e1c b\u1ed9 ph\u1eadn s\u1ed1ng ti\u1ebfp x\u00fac ph\u1ea3i \u0111\u01b0\u1ee3c ng\u1eaft \u0111i\u1ec7n tr\u01b0\u1edbc khi l\u00e0m vi\u1ec7c tr\u1eeb khi \u00e1p d\u1ee5ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ph\u00e9p c\u1ee5 th\u1ec3. s\u1eed d\u1ee5ng h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 c\u00e1c y\u00eau c\u1ea7u an to\u00e0n c\u1ee5c b\u1ed9 c\u1ee7a d\u1ef1 \u00e1n \u0111\u1ec3 c\u00e1ch ly, truy c\u1eadp v\u00e0 quay l\u1ea1i d\u1ecbch v.<\/p>\n\n\n\n

Khung ch\u1ea9n \u0111o\u00e1n d\u01b0\u1edbi \u0111\u00e2y do \u0111\u00f3 l\u00e0 m\u1ed9t k\u1ebf ho\u1ea1ch b\u1eb1ng ch\u1ee9ng. ki\u1ec3m tra n\u1ed9i b\u1ed9, ki\u1ec3m tra s\u1ee9c \u0111\u1ec1 kh\u00e1ng, th\u1eaft ch\u1eb7t v\u00e0 thay th\u1ebf th\u00e0nh ph\u1ea7n thu\u1ed9c v\u1ec1 m\u1ed9t quy tr\u00ecnh b\u1ea3o tr\u00ec c\u00e1ch ly \u0111\u00fang c\u00e1ch \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi nh\u00e2n vi\u00ean c\u00f3 tr\u00ecnh \u0111.<\/p>\n\n\n\n

\u0110\u1ecdc m\u1eabu nhi\u1ec7t tr\u01b0\u1edbc khi \u0111\u1ed5 l\u1ed7i cho t\u1ea3i<\/h2>\n\n\n\n

M\u1ed9t m\u00f4 h\u00ecnh nhi\u1ec7t c\u00f3 th\u1ec3 thu h\u1eb9p \u0111i\u1ec1u tra. thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng \u1ea5m \u0111\u1ed3ng \u0111\u1ec1u tr\u00ecnh b\u00e0y m\u1ed9t c\u00e2u h\u1ecfi kh\u00e1c v\u1edbi m\u1ed9t t\u1ee7 c\u00f3 m\u1ed9t \u0111i\u1ec3m n\u00f3ng c\u1ee5c b\u1ed9. t\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, t\u1ea5t c\u1ea3 c\u00e1c giai \u0111o\u1ea1n l\u00e0m n\u00f3ng v\u1edbi nhau kh\u00e1c v\u1edbi m\u1ed9t pha ho\u1eb7c m\u1ed9t giao di\u1ec7n b\u1eaft v\u00edt ch\u1ea1y n\u00f3ng h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/p>\n\n\n\n

M\u1eabu quan s\u00e1t \u0111\u01b0\u1ee3c<\/th>Gi\u1ea3i th\u00edch c\u00f3 th\u1ec3 \u0111\u1ec3 \u0111i\u1ec1u tra<\/th>B\u1eb1ng ch\u1ee9ng \u0111\u1ec3 so s\u00e1nh<\/th><\/tr><\/thead>
C\u1ea3 ba pha \u0111\u1ec1u \u1ea5m t\u01b0\u01a1ng t\u1ef1 nhau<\/td>T\u1ea3i li\u00ean t\u1ee5c, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cao ho\u1eb7c l\u00e0m m\u00e1t h\u1ea1n ch\u1ebf<\/td>Nhi\u1ec7t \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n, m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 ng\u0103n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo th\u1eddi gian<\/td><\/tr>
M\u1ed9t pha lu\u00f4n n\u00f3ng h\u01a1n<\/td>M\u1ea5t c\u00e2n b\u1eb1ng t\u1ea3i, \u0111i\u1ec7n tr\u1edf k\u1ebft n\u1ed1i b\u1ea5t th\u01b0\u1eddng ho\u1eb7c ch\u00eanh l\u1ec7ch \u0111o l\u01b0\u1eddng<\/td>D\u00f2ng \u0111i\u1ec7n pha, c\u00e1c m\u1ed1i n\u1ed1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u00e0 ch\u1ec9 s\u1ed1 nhi\u1ec7t \u0111\u00e3 hi\u1ec7u ch\u1ec9nh<\/td><\/tr>
M\u1ed9t kh\u1edbp n\u00f3ng h\u01a1n nhi\u1ec1u<\/td>Giao di\u1ec7n \u0111i\u1ec7n tr\u1edf cao ho\u1eb7c t\u00ecnh tr\u1ea1ng ti\u1ebfp x\u00fac b\u1ecb suy gi\u1ea3m<\/td>Xu h\u01b0\u1edbng nhi\u1ec7t, t\u1ea3i tr\u1ecdng, ki\u1ec3m tra c\u00e1ch ly v\u00e0 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td><\/tr>
M\u1ed9t s\u1ed1 ng\u0103n n\u00f3ng c\u00f9ng nhau<\/td>Nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, lu\u1ed3ng kh\u00f4ng kh\u00ed b\u1ecb ch\u1eb7n ho\u1eb7c thay \u0111\u1ed5i \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t<\/td>T\u00ecnh tr\u1ea1ng th\u00f4ng gi\u00f3, d\u1eef li\u1ec7u ph\u00f2ng v\u00e0 thay \u0111\u1ed5i b\u1ed1 c\u1ee5c<\/td><\/tr>
Nhi\u1ec7t \u0111\u1ed9 t\u0103ng sau khi trang b\u1ecb th\u00eam<\/td>Thay \u0111\u1ed5i c\u00e1ch b\u1ed1 tr\u00ed d\u00e2y d\u1eabn, th\u00eam t\u1ea3i ho\u1eb7c gi\u1ea3m lu\u1ed3ng kh\u00f4ng kh\u00ed<\/td>B\u1ea3n v\u1ebd tr\u01b0\u1edbc v\u00e0 sau, b\u1ea3n ghi t\u1ea3i v\u00e0 d\u1eef li\u1ec7u x\u00e1c minh<\/td><\/tr>
M\u1ed9t c\u1ea3m bi\u1ebfn b\u00e1o \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng h\u1ed7 tr<\/td>C\u1ea3m bi\u1ebfn, h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n, quy m\u00f4 ho\u1eb7c v\u1ea5n \u0111\u1ec1 v\u1ecb tr\u00ed<\/td>\u0110o l\u01b0\u1eddng \u0111\u1ed9c l\u1eadp v\u00e0 x\u00e1c minh k\u00eanh<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Kh\u00f4ng bi\u1ebfn b\u1ea3ng th\u00e0nh m\u00e3 l\u1ed7i t\u1ef1 \u0111\u1ed9ng.N\u00f3 t\u1ed5 ch\u1ee9c c\u00e1c c\u00e2u h\u1ecfi ti\u1ebfp theo.VV switchgear v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn nhi\u1ec1u h\u01a1n m\u1ed9t c\u01a1 ch\u1ebf c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n\n\n\n

Ki\u1ec3m tra nhi\u1ec7m v\u1ee5 hi\u1ec7n t\u1ea1i v\u00e0 v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c duy tr\u00ec<\/h2>\n\n\n\n

D\u00f2ng \u0111i\u1ec7n l\u00e0 bi\u1ebfn ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea7u ti\u00ean \u0111\u1ec3 so s\u00e1nh v\u1edbi nhi\u1ec7t \u0111\u1ed9. t\u1ed5n th\u1ea5t \u0111i\u1ec7n tr\u1edf theo m\u1ed1i quan h\u1ec7 I\u00b2R, do \u0111\u00f3 nhi\u1ec7t sinh ra trong d\u00e2y d\u1eabn t\u0103ng nhanh khi d\u00f2ng \u0111i\u1ec7n t\u0103ng khi \u0111i\u1ec7n tr\u1edf kh\u00f4ng thay \u0111\u1ed5i. d\u00f2ng \u0111i\u1ec7n t\u0103ng 20% t\u1ea1o ra t\u1ed5n th\u1ea5t \u0111i\u1ec7n tr\u1edf nhi\u1ec1u h\u01a1n kho\u1ea3ng 44% \u1edf c\u00f9ng \u0111i\u1ec7n tr\u1edf v\u00ec 1,2\u00b2 b\u1eb1ng 1,44.<\/p>\n\n\n\n

M\u1ed1i quan h\u1ec7 \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 m\u1ecdi s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 l\u00e0 qu\u00e1 t\u1ea3i.\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV, so s\u00e1nh d\u00f2ng \u0111i\u1ec7n pha v\u1edbi x\u1ebfp h\u1ea1ng l\u1eafp r\u00e1p v\u00e0 m\u1ea1ch, sau \u0111\u00f3 xem x\u00e9t nhi\u1ec7m v\u1ee5 cao h\u01a1n v\u1eabn t\u1ed3n t\u1ea1i trong bao l\u00e2u. \u0111\u1ec9nh s\u1ea3n xu\u1ea5t ng\u1eafn v\u00e0 s\u1ef1 thay \u0111\u1ed5i t\u1ea3i cao m\u01b0\u1eddi hai gi\u1edd l\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t kh\u00e1c nhau.<\/p>\n\n\n\n

So s\u00e1nh d\u00f2ng \u0111i\u1ec7n ph\u00f9 h\u1ee3p v\u1edbi x\u1ebfp h\u1ea1ng ph\u00f9 h\u1ee3p<\/h3>\n\n\n\n

Kh\u00f4ng s\u1eed d\u1ee5ng d\u00f2ng khung c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ec3 thay th\u1ebf cho kh\u1ea3 n\u0103ng d\u00f2ng \u0111i\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh c\u1ee7a b\u1ed9 ph\u1eadn l\u1eafp r\u00e1p.H\u00e3y h\u1ecfi x\u1ebfp h\u1ea1ng d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c n\u00e0o \u00e1p d\u1ee5ng cho b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n th\u1ef1c t\u1ebf, s\u1eafp x\u1ebfp thanh c\u00e1i, c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t v\u00e0 \u0111i\u1ec1u ki\u1ec7n trang web.X\u00e1c nh\u1eadn xem gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 c\u00f3 thu\u1ed9c v\u1ec1 c\u1ea5u h\u00ecnh KYN28A-12 \u0111\u01b0\u1ee3c cung c\u1ea5p hay ch\u1ec9 thu\u1ed9c v\u1ec1 m\u1ed9t h\u1ecd s\u1ea3n ph\u1ea9m r\u1ed9ng h\u01a1n.<\/p>\n\n\n\n

C\u0169ng so s\u00e1nh hi\u1ec7n t\u1ea1i tr\u00ean m\u1ed7i giai \u0111o\u1ea1n.N\u1ebfu m\u1ed9t giai \u0111o\u1ea1n mang t\u1ea3i tr\u1ecdng v\u1eadt ch\u1ea5t nhi\u1ec1u h\u01a1n, m\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 ph\u1ea3n \u00e1nh s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng h\u1ec7 th\u1ed1ng ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t khi\u1ebfm khuy\u1ebft t\u1ee7. b\u1ea3o t\u1ed3n m\u1ed1i quan h\u1ec7 th\u1eddi gian gi\u1eefa hi\u1ec7n t\u1ea1i v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 m\u1ed9t \u0111\u1ec9nh hi\u1ec7n t\u1ea1i v\u00e0o bu\u1ed5i tr\u01b0a kh\u00f4ng \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi m\u1ed9t h\u00ecnh \u1ea3nh h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c ch\u1ee5p sau khi qu\u00e1 tr\u00ecnh \u0111\u00e3 ch\u1eadm l\u1ea1i.<\/p>\n\n\n\n

\u0110i\u1ec1u tra c\u00e1c k\u1ebft n\u1ed1i v\u00e0 li\u00ean h\u1ec7 c\u00f3 \u0111i\u1ec7n tr\u1edf cao<\/h2>\n\n\n\n
\"T\u1ea5m<\/figure>\n\n\n\n

S\u01b0\u1edfi \u1ea5m c\u1ee5c b\u1ed9 th\u01b0\u1eddng x\u1ee9ng \u0111\u00e1ng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean v\u00ec \u0111i\u1ec7n tr\u1edf t\u1eadp trung t\u1ea1i m\u1ed9t kh\u1edbp c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t \u0111i\u1ec3m n\u00f3ng ngay c\u1ea3 khi t\u1ed5ng d\u00f2ng \u0111i\u1ec7n trung chuy\u1ec3n v\u1eabn n\u1eb1m trong ph\u1ea1m vi d\u1ef1 ki\u1ebfn. nh\u1eefng ng\u01b0\u1eddi \u0111\u00f3ng g\u00f3p c\u00f3 th\u1ec3 bao g\u1ed3m t\u00ecnh tr\u1ea1ng k\u1ebft n\u1ed1i, hao m\u00f2n ti\u1ebfp x\u00fac, \u00f4 nhi\u1ec5m, \u0103n m\u00f2n, t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t v\u00e0 c\u0103n ch\u1ec9nh c\u01a1 h\u1ecdc.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u b\u1ea3o tr\u00ec NFPA 70B x\u00e1c \u0111\u1ecbnh nhi\u1ec7t k\u1ebf h\u1ed3ng ngo\u1ea1i, c\u1ea3m bi\u1ebfn nhi\u1ec7t g\u1eafn c\u1ed1 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac l\u00e0 nh\u1eefng c\u00e1ch \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c k\u1ebft n\u1ed1i v\u00e0 k\u1ebft th\u00fac \u0111i\u1ec7n.N\u00f3 c\u0169ng nh\u1ea5n m\u1ea1nh so s\u00e1nh v\u1edbi gi\u1edbi h\u1ea1n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t h\u01a1n l\u00e0 m\u1ed9t s\u1ed1 \u0111i\u1ec7n tr\u1edf ph\u1ed5 qu\u00e1t.<\/p>\n\n\n\n

K\u1ebft n\u1ed1i thanh c\u00e1i v\u00e0 c\u00e1p<\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV, so s\u00e1nh c\u00e1c kh\u1edbp n\u1ed1i b\u1eaft v\u00edt t\u01b0\u01a1ng \u1ee9ng d\u01b0\u1edbi t\u1ea3i \u0111i\u1ec7n t\u01b0\u01a1ng t\u1ef1. m\u1ed9t \u0111i\u1ec3m n\u00f3ng t\u1ea1i m\u1ed9t k\u1ebft n\u1ed1i kh\u00f4ng xu\u1ea5t hi\u1ec7n tr\u00ean c\u00e1c pha t\u01b0\u01a1ng \u0111\u01b0\u01a1ng l\u00e0 b\u1eb1ng ch\u1ee9ng m\u1ea1nh m\u1ebd h\u01a1n v\u1ec1 v\u1ea5n \u0111\u1ec1 c\u1ee5c b\u1ed9 so v\u1edbi ph\u1ea7n xe bu\u00fdt \u1ea5m \u00e1p theo d\u00f2ng \u0111i\u1ec7n t\u1ed5ng th.<\/p>\n\n\n\n

Trong th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, nh\u00e2n vi\u00ean c\u00f3 tr\u00ecnh \u0111\u1ed9 c\u00f3 th\u1ec3 so s\u00e1nh t\u00ecnh tr\u1ea1ng th\u1ec3 ch\u1ea5t v\u1edbi h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 quy tr\u00ecnh b\u1ea3o tr\u00ec c\u1ee7a d\u1ef1 \u00e1n. ch\u1ea9n \u0111o\u00e1n n\u00ean thi\u1ebft l\u1eadp nguy\u00ean nh\u00e2n tr\u01b0\u1edbc khi b\u1ea5t k\u1ef3 c\u00f4ng vi\u1ec7c kh\u1eafc ph\u1ee5c n\u00e0o \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn.<\/p>\n\n\n\n

Li\u00ean h\u1ec7 ch\u00ednh c\u1ee7a b\u1ed9 ng\u1eaft c\u00f3 th\u1ec3 r\u00fat ra<\/h3>\n\n\n\n

M\u1ed9t b\u1ed9 ng\u1eaft c\u00f3 th\u1ec3 r\u00fat ra th\u00eam m\u1ed9t giao di\u1ec7n kh\u00e1c: c\u00e1c ti\u1ebfp \u0111i\u1ec3m ng\u1eaft k\u1ebft n\u1ed1i ch\u00ednh ph\u1ea3i c\u0103n ch\u1ec9nh v\u00e0 tham gia theo thi\u1ebft k\u1ebf thi\u1ebft b\u1ecb. m\u1eb7c b\u1ea5t th\u01b0\u1eddng, \u00f4 nhi\u1ec5m ho\u1eb7c tham gia k\u00e9m c\u00f3 th\u1ec3 l\u00e0m t\u0103ng s\u1ee9c \u0111\u1ec1 kh\u00e1ng ti\u1ebfp x\u00fac. v\u1ecb tr\u00ed c\u01a1 kh\u00ed do \u0111\u00f3 thu\u1ed9c v\u1ec1 \u0111i\u1ec1u tra nhi\u1ec7t c\u0169ng nh\u01b0 \u0111i\u1ec7n.<\/p>\n\n\n\n

Kh\u00f4ng gi\u1ea3i th\u00edch x\u00e2y d\u1ef1ng c\u00f3 th\u1ec3 thu h\u1ed3i nh\u01b0 l\u00e0 s\u1ef1 cho ph\u00e9p \u0111\u1ec3 lo\u1ea1i b\u1ecf ho\u1eb7c ch\u00e8n m\u1ed9t c\u1ea7u dao trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t. truy c\u1eadp b\u1ea3o tr\u00ec v\u00e0 ho\u1ea1t \u0111\u1ed9ng tr\u00e0n \u0111\u1ea7y n\u0103ng l\u01b0\u1ee3ng l\u00e0 nh\u1eefng c\u00e2u h\u1ecfi ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n

Ki\u1ec3m tra th\u00f4ng gi\u00f3 v\u00e0 m\u00f4i tr\u01b0\u1eddng ph\u00f2ng chuy\u1ec3n m\u1ea1ch<\/h2>\n\n\n\n

MV switchgear nhi\u1ec7t \u0111\u1ed9 ph\u1ee5 thu\u1ed9c v\u00e0o kh\u00f4ng kh\u00ed xung quanh n\u00f3. IEC 62271-1 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5 b\u00ecnh th\u01b0\u1eddng v\u00e0 bao g\u1ed3m m\u1ed9t ph\u1ea1m vi m\u00f4i tr\u01b0\u1eddng xung quanh trong nh\u00e0 v\u1edbi gi\u00e1 tr\u1ecb tr\u00ean l\u00e0 40 \u00b0C. C\u00e1c d\u1ef1 \u00e1n b\u00ean ngo\u00e0i c\u00e1c \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 y\u00eau c\u1ea7u xem x\u00e9t c\u1ee5 th\u1ec3 thay v\u00ec s\u1eed d\u1ee5ng im l\u1eb7ng c\u1ee7a \u0111\u00e1nh gi\u00e1 b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n

T\u00e0i li\u1ec7u nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, t\u00ecnh tr\u1ea1ng th\u00f4ng gi\u00f3, ngu\u1ed3n nhi\u1ec7t g\u1ea7n \u0111\u00f3 v\u00e0 b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o \u0111\u1ed1i v\u1edbi vi\u1ec7c c\u00e0i \u0111\u1eb7t. t\u01b0\u1eddng m\u1edbi, v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef, b\u1ed9 l\u1ecdc, b\u1ed5 sung c\u00e1p ho\u1eb7c thi\u1ebft b\u1ecb kh\u00e1c c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1ch nhi\u1ec7t r\u1eddi kh\u1ecfi m\u1ed9t \u0111\u1ed9i h\u00ecnh.<\/p>\n\n\n\n

Kh\u00f4ng coi c\u1eeda m\u1edf l\u00e0 gi\u1ea3i ph\u00e1p l\u00e0m m\u00e1t<\/h3>\n\n\n\n

\u0110\u1ec3 c\u1eeda \u0111\u00f3ng c\u1eaft MV m\u1edf thay \u0111\u1ed5i \u0111i\u1ec1u ki\u1ec7n bao v\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh v\u00e0 c\u00f3 th\u1ec3 g\u00e2y ra r\u1ee7i ro nghi\u00eam tr\u1ecdng v\u1ec1 an to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 ch\u1ec9 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn khi c\u1eeda ho\u1eb7c t\u1ea5m m\u1edf, h\u00e3y coi quan s\u00e1t \u0111\u00f3 l\u00e0 b\u1eb1ng ch\u1ee9ng cho th\u1ea5y vi\u1ec7c b\u1ed1 tr\u00ed nhi\u1ec7t \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n

Trong tr\u01b0\u1eddng h\u1ee3p thi\u1ebft k\u1ebf s\u1eed d\u1ee5ng qu\u1ea1t ho\u1eb7c h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 \u0111\u01b0\u1ee3c l\u1ecdc, h\u00e3y x\u00e1c nh\u1eadn ch\u1ee9c n\u0103ng n\u00e0o \u0111\u01b0\u1ee3c mong \u0111\u1ee3i trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, m\u1ee9c \u0111\u1ed9 m\u1ea5t m\u00e1t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u00e0 h\u1ea1n ch\u1ebf v\u1eadn h\u00e0nh n\u00e0o \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng n\u1ebfu kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t \u0111\u00f3.<\/p>\n\n\n\n

Nhi\u1ec7t ph\u00f2ng ri\u00eang bi\u1ec7t t\u1eeb m\u1ed9t \u0111i\u1ec3m n\u00f3ng \u0111i\u1ec7n \u0111\u1ecba ph\u01b0\u01a1ng<\/h2>\n\n\n\n

M\u1ed9t cu\u1ed9c \u0111i\u1ec1u tra h\u1eefu \u00edch so s\u00e1nh s\u1ef1 kh\u00e1c bi\u1ec7t nhi\u1ec7t \u0111\u1ed9, kh\u00f4ng ch\u1ec9 nhi\u1ec7t \u0111\u1ed9 tuy\u1ec7t \u0111\u1ed1i.N\u1ebfu ba t\u1ee7 l\u00e2n c\u1eadn t\u0103ng l\u00ean c\u00f9ng nhau khi nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng leo l\u00ean, ph\u00f2ng ho\u1eb7c lu\u1ed3ng kh\u00f4ng kh\u00ed chung x\u1ee9ng \u0111\u00e1ng \u0111\u01b0\u1ee3c ch\u00fa \u00fd.N\u1ebfu m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i t\u0103ng xa tr\u00ean c\u00e1c kh\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng trong khi \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh v\u1eabn \u1ed5n \u0111\u1ecbnh, m\u1ed9t nguy\u00ean nh\u00e2n \u0111i\u1ec7n c\u1ee5c b\u1ed9 tr\u1edf n\u00ean h\u1ee3p l\u00fd h\u01a1n.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y quan tr\u1ecdng v\u00ec c\u00e1c h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c l\u00e0 kh\u00e1c nhau. th\u00eam th\u00f4ng gi\u00f3 s\u1ebd kh\u00f4ng s\u1eeda ch\u1eefa m\u1ed9t ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n tr\u1edf cao, trong khi thay th\u1ebf m\u1ed9t k\u1ebft n\u1ed1i \u00e2m thanh s\u1ebd kh\u00f4ng gi\u1ea3i quy\u1ebft m\u1ed9t ph\u00f2ng chuy\u1ec3n m\u1ea1ch ho\u1ea1t \u0111\u1ed9ng b\u00ean ngo\u00e0i c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t c\u1ee7a thi\u1ebft b.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV c\u00f3 c\u1ea3 hai tri\u1ec7u ch\u1ee9ng, h\u00e3y coi ch\u00fang nh\u01b0 hai d\u00f2ng c\u00f4ng vi\u1ec7c. hi\u1ec7u ch\u1ec9nh m\u1ed9t c\u00e1i c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 nh\u01b0ng \u0111\u1ec3 l\u1ea1i c\u00e1i kia ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng Nhi\u1ec7t k\u1ebf h\u1ed3ng ngo\u1ea1i l\u00e0m b\u1eb1ng ch\u1ee9ng, kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e1n quy\u1ebft<\/h2>\n\n\n\n
\"Ph\u00f2ng<\/figure>\n\n\n\n

Nhi\u1ec7t k\u1ebf h\u1ed3ng ngo\u1ea1i c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 so s\u00e1nh nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t v\u00e0 ph\u00e1t hi\u1ec7n c\u00e1c m\u1eabu, nh\u01b0ng m\u1ed9t bi\u1ec3u \u0111\u1ed3 nhi\u1ec7t kh\u00f4ng t\u1ef1 gi\u1ea3i th\u00edch. ISO 18434-1 cung c\u1ea5p h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1c quy tr\u00ecnh \u0111o nhi\u1ec7t \u0111\u1ed9, bao g\u1ed3m nhi\u1ec7t \u0111\u1ed9 bi\u1ec3u ki\u1ebfn ph\u1ea3n x\u1ea1, \u0111\u1ed9 ph\u00e1t x\u1ea1 v\u00e0 gi\u1ea3i th\u00edch d\u1eef li\u1ec7u.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi xu h\u01b0\u1edbng thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV, ghi l\u1ea1i t\u1ea3i \u0111i\u1ec7n t\u1ea1i th\u1eddi \u0111i\u1ec3m c\u1ee7a h\u00ecnh \u1ea3nh v\u00e0 so s\u00e1nh c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng trong \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng t\u1ef1. v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t, g\u00f3c nh\u00ecn v\u00e0 n\u0103ng l\u01b0\u1ee3ng ph\u1ea3n x\u1ea1 c\u00f3 th\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng nhi\u1ec7t \u0111\u1ed9 r\u00f5 r\u00e0ng.<\/p>\n\n\n\n

\u0110i\u1ec3m c\u00f3 th\u1ec3 so s\u00e1nh xu h\u01b0\u1edbng<\/h3>\n\n\n\n

M\u1ed9t h\u00ecnh \u1ea3nh duy nh\u1ea5t l\u00e0 h\u1eefu \u00edch cho vi\u1ec7c s\u00e0ng l\u1ecdc.M\u1ed9t ph\u00e9p \u0111o l\u1eb7p \u0111i l\u1eb7p l\u1ea1i t\u1ea1i m\u1ed9t \u0111i\u1ec3m x\u00e1c \u0111\u1ecbnh, k\u1ebft h\u1ee3p v\u1edbi d\u1eef li\u1ec7u hi\u1ec7n t\u1ea1i v\u00e0 m\u00f4i tr\u01b0\u1eddng xung quanh, h\u1eefu \u00edch h\u01a1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed9t \u0111i\u1ec1u ki\u1ec7n l\u00e0 \u1ed5n \u0111\u1ecbnh hay x\u1ea5u \u0111i.<\/p>\n\n\n\n

N\u01a1i c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 v\u0129nh vi\u1ec5n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ea3m bi\u1ebfn, logic b\u00e1o \u0111\u1ed9ng, giao di\u1ec7n truy\u1ec1n th\u00f4ng v\u00e0 ph\u1ea3n \u1ee9ng c\u00f3 tr\u00e1ch nhi\u1ec7m. gi\u00e1m s\u00e1t kh\u00f4ng lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea7n thi\u1ebft ph\u1ea3i hi\u1ec3u nguy\u00ean nh\u00e2n \u0111i\u1ec7n c\u1ee7a m\u1ed9t xu h\u01b0\u1edbng b\u1ea5t th\u01b0\u1eddng.<\/p>\n\n\n\n

Kh\u00f4ng nh\u1ea7m l\u1eabn qu\u00e1 nhi\u1ec7t v\u1edbi x\u1ea3 m\u1ed9t ph\u1ea7n<\/h2>\n\n\n\n

Nhi\u1ec7t v\u00e0 x\u1ea3 m\u1ed9t ph\u1ea7n l\u00e0 nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng kh\u00e1c nhau, m\u1eb7c d\u00f9 m\u1ed9t t\u00e0i s\u1ea3n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb b\u1eb1ng ch\u1ee9ng c\u1ee7a c\u1ea3 hai. ph\u00f3ng \u0111i\u1ec7n m\u1ed9t ph\u1ea7n li\u00ean quan \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec7n m\u00f4i c\u1ee5c b\u1ed9, trong khi c\u00e1c \u0111i\u1ec3m n\u00f3ng nhi\u1ec7t th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n, \u0111i\u1ec7n tr\u1edf ho\u1eb7c l\u00e0m m\u00e1t. kh\u00f4ng s\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n l\u00e0m b\u1eb1ng ch\u1ee9ng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p kia.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV cho th\u1ea5y h\u01b0 h\u1ecfng c\u00e1ch \u0111i\u1ec7n, \u00e2m thanh b\u1ea5t th\u01b0\u1eddng, m\u00f9i gi\u1ed1ng nh\u01b0 ozone ho\u1eb7c c\u00e1c m\u1ed1i quan t\u00e2m \u0111i\u1ec7n m\u00f4i kh\u00e1c, c\u00f3 k\u1ef9 s\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u00e1c \u0111\u1ecbnh xem c\u00f3 c\u1ea7n \u0111\u00e1nh gi\u00e1 ph\u00f3ng \u0111i\u1ec7n m\u1ed9t ph\u1ea7n hay kh\u00f4ng. gi\u1eef nh\u1eefng ph\u00e1t hi\u1ec7n \u0111\u00f3 t\u00e1ch bi\u1ec7t v\u1edbi ch\u1ea9n \u0111o\u00e1n nhi\u1ec7t cho \u0111\u1ebfn khi b\u1eb1ng ch\u1ee9ng li\u00ean k\u1ebft ch\u00fang.<\/p>\n\n\n\n

S\u1ef1 t\u00e1ch bi\u1ec7t n\u00e0y ng\u0103n ng\u1eeba l\u1ed7i b\u1ea3o tr\u00ec ph\u1ed5 bi\u1ebfn: thay th\u1ebf k\u1ebft n\u1ed1i n\u00f3ng v\u00e0 gi\u1ea3 s\u1eed h\u1ec7 th\u1ed1ng c\u00e1ch \u0111i\u1ec7n \u0111\u00e3 t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c x\u00f3a \u0111\u1ec3 ti\u1ebfp t\u1ee5c b\u1ea3o tr\u00ec.<\/p>\n\n\n\n

So s\u00e1nh thi\u1ebft b\u1ecb v\u1edbi c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/h2>\n\n\n\n

S\u1eeda \u0111\u1ed5i c\u00f3 th\u1ec3 thay \u0111\u1ed5i h\u00e0nh vi nhi\u1ec7t c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV.M\u1ed9t b\u1ed9 ng\u1eaft, s\u1eafp x\u1ebfp d\u00e2y d\u1eabn, bi\u1ebfn d\u00f2ng, m\u1edf th\u00f4ng gi\u00f3 ho\u1eb7c k\u1ebft th\u00fac c\u00e1p kh\u00e1c nhau c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u1ed5n th\u1ea5t ho\u1eb7c lu\u1ed3ng kh\u00f4ng kh\u00ed. xem x\u00e9t c\u00e1c thay \u0111\u1ed5i \u0111\u1ed1i v\u1edbi t\u00e0i li\u1ec7u h\u1ed7 tr\u1ee3 thi\u1ebft k\u1ebf ban \u0111\u1ea7u.<\/p>\n\n\n\n

IEC 62271-200 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn th\u1eed nghi\u1ec7m t\u0103ng nhi\u1ec7t \u0111\u1ed9 nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a khung l\u1eafp r\u00e1p kim lo\u1ea1i k\u00e8m theo.\u0110\u1ed1i v\u1edbi c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i, h\u00e3y h\u1ecfi xem b\u1eb1ng ch\u1ee9ng x\u00e1c minh hi\u1ec7n t\u1ea1i c\u00f3 c\u00f2n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng hay kh\u00f4ng v\u00e0 \u0111\u00e1nh gi\u00e1 k\u1ef9 thu\u1eadt n\u00e0o h\u1ed7 tr\u1ee3 thay \u0111\u1ed5i.<\/p>\n\n\n\n

\u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi m\u1ed9t danh m\u1ee5c lo\u1ea1t ch\u1ee9a nhi\u1ec1u x\u1ebfp h\u1ea1ng hi\u1ec7n t\u1ea1i v\u00e0 l\u1ed7i. kh\u00f4ng \u00e1p d\u1ee5ng gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 cao nh\u1ea5t cho m\u1ecdi b\u1ea3ng KYN28A-12. y\u00eau c\u1ea7u m\u1ed9t b\u1ea3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng theo m\u00f4 h\u00ecnh c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c t\u00e0i li\u1ec7u h\u1ed7 tr\u1ee3 cho vi\u1ec7c l\u1eafp r\u00e1p th\u1ef1c t.<\/p>\n\n\n\n

V\u00ed d\u1ee5: M\u1ed9t Feeder Ch\u1ea1y N\u00f3ng nh\u01b0ng Bus Kh\u00f4ng<\/h2>\n\n\n\n

H\u00e3y xem x\u00e9t m\u1ed9t nh\u00e0 m\u00e1y gi\u1ea3 \u0111\u1ecbnh v\u1edbi m\u1ed9t s\u1ed1 b\u1ed9 c\u1ea5p li\u1ec7u bi\u1ebfn \u00e1p thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV.Trong m\u1ed9t cu\u1ed9c kh\u1ea3o s\u00e1t nhi\u1ec7t k\u1ebf ho\u1ea1ch, m\u1ed9t k\u1ebft n\u1ed1i ph\u00eda c\u00e1p c\u1ee7a b\u1ed9 c\u1ea5p li\u1ec7u xu\u1ea5t hi\u1ec7n n\u00f3ng h\u01a1n r\u00f5 r\u1ec7t so v\u1edbi c\u00e1c k\u1ebft n\u1ed1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u00ean c\u00e1c b\u1ed9 c\u1ea5p li\u1ec7u kh\u00e1c. d\u00f2ng c\u1ea5p li\u1ec7u t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c lo\u1ea1i kh\u00e1c v\u00e0 nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

M\u00f4 h\u00ecnh n\u00e0y kh\u00f4ng ch\u1ee9ng minh m\u1ed9t k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo, nh\u01b0ng n\u00f3 l\u00e0m cho m\u1ed9t kh\u00e1ng \u0111\u1ecba ph\u01b0\u01a1ng ho\u1eb7c v\u1ea5n \u0111\u1ec1 giao di\u1ec7n m\u1ed9t \u01b0u ti\u00ean \u0111i\u1ec1u tra h\u1ee3p l\u00fd. g\u00f3i b\u1eb1ng ch\u1ee9ng h\u1eefu \u00edch bao g\u1ed3m h\u00ecnh \u1ea3nh nhi\u1ec7t, t\u1ea3i t\u1ea1i th\u1eddi \u0111i\u1ec3m \u0111o, so s\u00e1nh v\u1edbi c\u00e1c giai \u0111o\u1ea1n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, d\u1eef li\u1ec7u xu h\u01b0\u1edbng tr\u01b0\u1edbc \u0111\u00f3 v\u00e0 b\u1ea3n v\u1ebd k\u1ebft n\u1ed1i c\u00f3 li\u00ean quan.<\/p>\n\n\n\n

Trong th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, nh\u00e2n vi\u00ean c\u00f3 tr\u00ecnh \u0111\u1ed9 c\u00f3 th\u1ec3 ki\u1ec3m tra k\u1ebft n\u1ed1i v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ki\u1ec3m tra \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00ea duy\u1ec7t theo y\u00eau c\u1ea7u c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh b\u1ea3o tr\u00ec.N\u1ebfu \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa, l\u1eb7p l\u1ea1i c\u00e1c ph\u00e9p \u0111o so s\u00e1nh d\u01b0\u1edbi t\u1ea3i t\u01b0\u01a1ng t\u1ef1 tr\u01b0\u1edbc khi \u0111\u00f3ng v\u1ea5n \u0111.<\/p>\n\n\n\n

B\u00e2y gi\u1edd h\u00e3y xem x\u00e9t m\u1ed9t k\u1ecbch b\u1ea3n th\u1ee9 hai: t\u1ea5t c\u1ea3 c\u00e1c ng\u0103n trung chuy\u1ec3n c\u00f3 xu h\u01b0\u1edbng \u1ea5m h\u01a1n trong m\u1ed9t kho\u1ea3ng th\u1eddi gian khi nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng kh\u00ed ph\u00f2ng chuy\u1ec3n m\u1ea1ch c\u0169ng t\u0103ng \u0111\u00e1ng k\u1ec3. m\u00f4 h\u00ecnh \u0111\u00f3 chuy\u1ec3n s\u1ef1 ch\u00fa \u00fd v\u1ec1 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 th\u00f4ng gi\u00f3. c\u00f9ng m\u1ed9t t\u1eeb, qu\u00e1 n\u00f3ng, do \u0111\u00f3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c c\u00e2u h\u1ecfi k\u1ef9 thu\u1eadt r\u1ea5t kh\u00e1c nhau.<\/p>\n\n\n\n

X\u00e2y d\u1ef1ng m\u1ed9t MV t\u1ed1t h\u01a1n Switchgear Overheating \u0111i\u1ec1u tra Record<\/h2>\n\n\n\n
\"Ki\u1ec3m<\/figure>\n\n\n\n

M\u1ed9t b\u1ea3n ghi c\u00f3 c\u1ea5u tr\u00fac gi\u00fap c\u00e1c k\u1ef9 s\u01b0 quy\u1ebft \u0111\u1ecbnh xem v\u1ea5n \u0111\u1ec1 l\u00e0 t\u1ea3i, \u0111i\u1ec1u ki\u1ec7n k\u1ebft n\u1ed1i, m\u00f4i tr\u01b0\u1eddng hay \u0111o l\u01b0\u1eddng.N\u00f3 c\u0169ng l\u00e0m cho c\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn c\u1ee7a nh\u00e0 cung c\u1ea5p hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n\n\n\n

Th\u00f4ng tin \u0111\u1ec3 ghi l\u1ea1i<\/th>T\u1ea1i sao n\u00f3 quan tr\u1ecdng<\/th><\/tr><\/thead>
Nh\u1eadn d\u1ea1ng b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ed9 n\u1ea1p<\/td>K\u1ebft n\u1ed1i tri\u1ec7u ch\u1ee9ng v\u1edbi b\u1ea3n v\u1ebd v\u00e0 c\u1ea5u h\u00ecnh ch\u00ednh x\u00e1c<\/td><\/tr>
D\u00f2ng \u0111i\u1ec7n pha v\u00e0 ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/td>Hi\u1ec3n th\u1ecb nhi\u1ec7m v\u1ee5 \u0111i\u1ec7n c\u00f3 m\u1eb7t trong s\u1ef1 ki\u1ec7n<\/td><\/tr>
Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 ng\u0103n<\/td>T\u00e1ch \u0111i\u1ec1u ki\u1ec7n ph\u00f2ng kh\u1ecfi h\u1ec7 th\u1ed1ng s\u01b0\u1edfi c\u1ee5c b\u1ed9<\/td><\/tr>
H\u00ecnh \u1ea3nh nhi\u1ec7t v\u1edbi t\u1ea3i v\u00e0 th\u1eddi gian<\/td>H\u1ed7 tr\u1ee3 so s\u00e1nh v\u00e0 ph\u00e2n t\u00edch xu h\u01b0\u1edbng<\/td><\/tr>
Thi\u1ebft b\u1ecb g\u1ea7n \u0111\u00e2y ho\u1eb7c thay \u0111\u1ed5i c\u00e1p<\/td>X\u00e1c \u0111\u1ecbnh nh\u1eefng thay \u0111\u1ed5i c\u1ea5u h\u00ecnh c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec7t ho\u1eb7c lu\u1ed3ng kh\u00f4ng kh\u00ed<\/td><\/tr>
L\u1ecbch s\u1eed b\u00e1o \u0111\u1ed9ng v\u00e0 b\u1ea3o v\u1ec7<\/td>Cho bi\u1ebft s\u1ef1 ki\u1ec7n c\u00f3 tr\u00f9ng h\u1ee3p v\u1edbi m\u1ed9t t\u00ecnh tr\u1ea1ng b\u1ea5t th\u01b0\u1eddng kh\u00e1c hay kh\u00f4ng<\/td><\/tr>
H\u1ed3 s\u01a1 b\u1ea3o tr\u00ec v\u00e0 ki\u1ec3m tra tr\u01b0\u1edbc \u0111\u00f3<\/td>Cung c\u1ea5p \u0111i\u1ec1u ki\u1ec7n c\u01a1 b\u1ea3n v\u00e0 b\u1eb1ng ch\u1ee9ng l\u1ed7i t\u00e1i di\u1ec5n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Gi\u1eef h\u1ed3 s\u01a1 g\u1eafn li\u1ec1n v\u1edbi b\u1ea3n v\u1ebd s\u1eeda \u0111\u1ed5i v\u00e0 nh\u1eadn d\u1ea1ng thi\u1ebft b\u1ecb. ch\u1ea9n \u0111o\u00e1n thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV m\u1ea1nh m\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o b\u1eb1ng ch\u1ee9ng so s\u00e1nh, kh\u00f4ng ph\u1ea3i tr\u00ean m\u1ed9t gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 b\u1ecb c\u00f4 l\u1eadp.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3m r\u1ee7i ro qu\u00e1 nhi\u1ec7t trong c\u00e1c d\u1ef1 \u00e1n thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch MV m\u1edbi<\/h2>\n\n\n\n

Ph\u00f2ng ng\u1eeba b\u1eaft \u0111\u1ea7u v\u1edbi \u0111\u1ea7u v\u00e0o d\u1ef1 \u00e1n ch\u00ednh x\u00e1c. cung c\u1ea5p c\u00e1c ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7n t\u1ea1i li\u00ean t\u1ee5c, \u0111\u00e1ng tin c\u1eady, d\u1eef li\u1ec7u l\u1ed7i, m\u00f4i tr\u01b0\u1eddng ph\u00f2ng, giao di\u1ec7n c\u00e1p v\u00e0 m\u1edf r\u1ed9ng d\u1ef1 ki\u1ebfn tr\u01b0\u1edbc khi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft \u0111\u01b0\u1ee3c ho\u00e0n thi\u1ec7n.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV trong nh\u00e0 m\u00e1y, ph\u1ed1i h\u1ee3p d\u00f2ng c\u1ea5p li\u1ec7u c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p v\u1edbi thi\u1ebft k\u1ebf nhi\u1ec7t ph\u00f2ng v\u00e0 truy c\u1eadp b\u1ea3o tr\u00ec theo k\u1ebf ho\u1ea1ch.N\u1ebfu c\u1ea7n gi\u00e1m s\u00e1t, h\u00e3y x\u00e1c \u0111\u1ecbnh k\u1ebft n\u1ed1i ho\u1eb7c ng\u0103n n\u00e0o c\u1ea7n ch\u1ec9 b\u00e1o nhi\u1ec7t \u0111\u1ed9 v\u00e0 c\u00e1ch x\u1eed l\u00fd c\u1ea3nh b\u00e1o.<\/p>\n\n\n\n

c\u1ee7a Lanshan KYN28A-12 trung th\u1ebf switchgear<\/a> s\u1eed d\u1ee5ng b\u1ed1 tr\u00ed ng\u1eaft m\u1ea1ch ch\u00e2n kh\u00f4ng c\u00f3 th\u1ec3 r\u00fat ra v\u1edbi c\u00e1c ng\u0103n ch\u1ee9c n\u0103ng ri\u00eang bi\u1ec7t. y\u00eau c\u1ea7u \u0111\u00e1nh gi\u00e1 ch\u00ednh x\u00e1c hi\u1ec7n t\u1ea1i, d\u1eef li\u1ec7u ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eddi gian ng\u1eafn, s\u1eafp x\u1ebfp bao v\u00e2y v\u00e0 t\u00e0i li\u1ec7u x\u00e1c minh cho c\u1ea5u h\u00ecnh \u0111\u1ec1 xu\u1ea5t thay v\u00ec \u00e1p d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb chu\u1ed7i r\u1ed9ng t\u1ef1 \u0111\u1ed9ng.<\/p>\n\n\n\n

\u0110\u1ec3 bi\u1ebft th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 mua s\u1eafm, h\u00e3y xem 7 y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t tr\u01b0\u1edbc khi mua thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft trung th\u1ebf<\/a>.<\/p>\n\n\n\n

Nh\u1eefng g\u00ec \u0111\u1ec3 g\u1eedi Lanshan cho m\u1ed9t \u0111\u00e1nh gi\u00e1 nhi\u1ec7t ho\u1eb7c thay th<\/h2>\n\n\n\n

N\u1ebfu m\u1ed9t d\u00f2ng s\u1ea3n ph\u1ea9m thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV hi\u1ec7n c\u00f3 \u0111ang ph\u00e1t tri\u1ec3n c\u00e1c m\u1ed1i quan t\u00e2m v\u1ec1 nhi\u1ec7t l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, h\u00e3y g\u1eedi s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng, m\u00f4 h\u00ecnh thi\u1ebft b\u1ecb, nhi\u1ec7m v\u1ee5 trung chuy\u1ec3n v\u00e0 d\u1eef li\u1ec7u m\u1ee9c l\u1ed7i c\u00f9ng v\u1edbi l\u1ecbch s\u1eed nhi\u1ec7t \u0111\u1ed9. bao g\u1ed3m c\u00e1c b\u1ee9c \u1ea3nh v\u00e0 h\u1ed3 s\u01a1 nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia s\u1ebb m\u1ed9t c\u00e1ch an to\u00e0n.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi m\u1ed9t d\u1ef1 \u00e1n thay th\u1ebf ho\u1eb7c m\u1edf r\u1ed9ng, th\u00eam b\u1ed1 tr\u00ed ph\u00f2ng, s\u1eafp x\u1ebfp c\u00e1p, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh trang web v\u00e0 ch\u1ee9c n\u0103ng gi\u00e1m s\u00e1t c\u1ea7n thi\u1ebft.N\u00eau r\u00f5 v\u1ea5n \u0111\u1ec1 l\u00e0 m\u1ed9t \u0111i\u1ec3m n\u00f3ng, to\u00e0n b\u1ed9 ng\u0103n, ho\u1eb7c \u0111\u1ed9i h\u00ecnh ho\u00e0n ch\u1ec9nh.<\/p>\n\n\n\n

M\u1ed9t \u0111\u00e1nh gi\u00e1 k\u1ef9 thu\u1eadt h\u1eefu \u00edch n\u00ean x\u00e1c \u0111\u1ecbnh nh\u1eefng d\u1eef li\u1ec7u c\u00f2n thi\u1ebfu v\u00e0 nh\u1eefng \u0111i\u1ec1u ki\u1ec7n d\u1ef1 \u00e1n c\u1ea7n x\u00e1c nh\u1eadn.N\u00f3 kh\u00f4ng n\u00ean gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng thay th\u1ebf t\u1ee7 m\u1ed9t m\u00ecnh gi\u1ea3i quy\u1ebft m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u00f2ng, t\u1ea3i ho\u1eb7c k\u1ebft n\u1ed1i.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn<\/h2>\n\n\n\n

MV switchgear qu\u00e1 n\u00f3ng n\u00ean \u0111\u01b0\u1ee3c x\u1eed l\u00fd nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 b\u1eb1ng ch\u1ee9ng tr\u01b0\u1edbc khi n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t quy\u1ebft \u0111\u1ecbnh thay th\u1ebf. so s\u00e1nh t\u1ea3i, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, sau \u0111\u00f3 ph\u00e2n bi\u1ec7t m\u1ed9t \u0111i\u1ec3m n\u00f3ng \u0111i\u1ec7n tr\u1edf cao \u0111\u1ecba ph\u01b0\u01a1ng v\u1edbi \u1ee9ng su\u1ea5t nhi\u1ec7t to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, b\u1ea3o t\u1ed3n b\u1ed1i c\u1ea3nh \u0111o l\u01b0\u1eddng v\u00e0 gi\u1eef c\u00f4ng vi\u1ec7c n\u1ed9i b\u1ed9 trong m\u1ed9t quy tr\u00ecnh b\u1ea3o tr\u00ec \u0111\u01b0\u1ee3c c\u00e1ch ly \u0111\u00fang c\u00e1ch. Li\u00ean h\u1ec7 Lanshan Electric<\/a> v\u1edbi s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng, d\u1eef li\u1ec7u l\u1ed7i v\u00e0 b\u1ea3n ghi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a b\u1ea1n \u0111\u1ec3 th\u1ea3o lu\u1eadn v\u1ec1 c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV ph\u00f9 h\u1ee3p ho\u1eb7c \u0111\u00e1nh gi\u00e1 thay th\u1ebf.<\/p>\n\n\n\n

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

Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV qu\u00e1 n\u00f3ng l\u00e0 g\u00ec?<\/h3>\n\n\n\n

Kh\u00f4ng c\u00f3 nguy\u00ean nh\u00e2n ph\u1ed5 qu\u00e1t duy nh\u1ea5t. d\u00f2ng \u0111i\u1ec7n cao, kh\u00e1ng k\u1ebft n\u1ed1i b\u1ea5t th\u01b0\u1eddng, \u0111i\u1ec1u ki\u1ec7n ti\u1ebfp x\u00fac, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cao v\u00e0 l\u00e0m m\u00e1t h\u1ea1n ch\u1ebf l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c kh\u1ea3 n\u0103ng \u0111\u00e1ng tin c\u1eady. m\u00f4 h\u00ecnh nhi\u1ec7t v\u00e0 d\u1eef li\u1ec7u v\u1eadn h\u00e0nh n\u00ean x\u00e1c \u0111\u1ecbnh gi\u1ea3i th\u00edch n\u00e0o nh\u1eadn \u0111\u01b0\u1ee3c \u01b0u ti\u00ean.<\/p>\n\n\n\n

M\u1ed9t k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo c\u00f3 th\u1ec3 l\u00e0m cho thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft n\u00f3ng ngay c\u1ea3 d\u01b0\u1edbi d\u00f2ng \u0111\u1ecbnh m\u1ee9c?<\/h3>\n\n\n\n

C\u00f3. m\u1ed9t s\u1ef1 gia t\u0103ng c\u1ee5c b\u1ed9 trong \u0111i\u1ec7n tr\u1edf c\u00f3 th\u1ec3 t\u1ea1o ra t\u1eadp trung I\u00b2R s\u01b0\u1edfi \u1ea5m ngay c\u1ea3 khi t\u1ed5ng th\u1ec3 feeder hi\u1ec7n t\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 qu\u00e1 m\u1ee9c. t\u00ecnh tr\u1ea1ng n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh b\u1ea3o tr\u00ec \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u1eb1ng ch\u1ee9ng ph\u00f9 h\u1ee3p v\u1edbi k\u1ebft n\u1ed1i v\u00e0 thi\u1ebft b.<\/p>\n\n\n\n

Nhi\u1ec7t k\u1ebf h\u1ed3ng ngo\u1ea1i c\u00f3 \u0111\u1ee7 \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV qu\u00e1 n\u00f3ng kh\u00f4ng?<\/h3>\n\n\n\n

S\u1ed1 Nhi\u1ec7t k\u1ebf c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 xu h\u01b0\u1edbng d\u1ecb th\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t, nh\u01b0ng vi\u1ec7c gi\u1ea3i th\u00edch ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea3i, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh, \u0111\u1ed9 ph\u00e1t x\u1ea1, nhi\u1ec7t \u0111\u1ed9 ph\u1ea3n x\u1ea1 v\u00e0 thi\u1ebft b\u1ecb t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. s\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a \u0111\u00e1nh gi\u00e1 t\u00ecnh tr\u1ea1ng r\u1ed9ng h\u01a1n.<\/p>\n\n\n\n

C\u00f3 n\u00ean m\u1edf c\u1eeda thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft MV \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t?<\/h3>\n\n\n\n

S\u1ed1 Ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u1eeda ho\u1eb7c t\u1ea5m m\u1edf c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00ecnh tr\u1ea1ng bao v\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh v\u00e0 t\u1ea1o ra r\u1ee7i ro an to\u00e0n nghi\u00eam tr\u1ecdng.N\u1ebfu ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng y\u00eau c\u1ea7u v\u1ecf b\u1ecdc thay \u0111\u1ed5i, c\u1ea5u h\u00ecnh l\u00e0m m\u00e1t v\u00e0 thi\u1ebft b\u1ecb c\u1ea7n xem x\u00e9t k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n

T\u00f4i n\u00ean g\u1eedi d\u1eef li\u1ec7u g\u00ec khi b\u00e1o c\u00e1o thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft qu\u00e1 n\u00f3ng?<\/h3>\n\n\n\n

G\u1eedi b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 nh\u1eadn d\u1ea1ng b\u1ed9 n\u1ea1p, d\u00f2ng \u0111i\u1ec7n pha, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh, l\u1ecbch s\u1eed b\u00e1o \u0111\u1ed9ng, h\u00ecnh \u1ea3nh nhi\u1ec7t v\u1edbi d\u1ea5u th\u1eddi gian, s\u1eeda \u0111\u1ed5i g\u1ea7n \u0111\u00e2y v\u00e0 h\u1ed3 s\u01a1 b\u1ea3o tr\u00ec c\u00f3 s\u1eb5n. th\u00eam s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng v\u00e0 b\u1ea3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng \u0111\u1ec3 ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 c\u00f3 th\u1ec3 so s\u00e1nh tri\u1ec7u ch\u1ee9ng v\u1edbi c\u1ea5u h\u00ecnh th\u1ef1c t.<\/p>","protected":false},"excerpt":{"rendered":"

MV switchgear overheating is rarely explained by one temperature reading. A warm busbar may reflect sustained current, while a single hot joint may point to abnormal resistance. A hot compartment can also result from restricted airflow or unusually high room temperature. The first task is therefore to identify what is hot, when the temperature rises […]<\/p>\n","protected":false},"author":1,"featured_media":805,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[87,36,133,41,132,134],"class_list":["post-1464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-kyn28a-12","tag-medium-voltage-switchgear","tag-mv-switchgear","tag-switchgear-maintenance","tag-switchgear-overheating","tag-thermal-inspection"],"_links":{"self":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/comments?post=1464"}],"version-history":[{"count":1,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1464\/revisions"}],"predecessor-version":[{"id":1465,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1464\/revisions\/1465"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media\/805"}],"wp:attachment":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media?parent=1464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/categories?post=1464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/tags?post=1464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}