{"id":2879,"date":"2026-08-28T04:39:00","date_gmt":"2026-08-28T04:39:00","guid":{"rendered":"https:\/\/lbajiele.com\/?p=2879"},"modified":"2026-08-25T12:10:09","modified_gmt":"2026-08-25T12:10:09","slug":"34-5kv-switchgear-guide","status":"publish","type":"post","link":"https:\/\/lbajiele.com\/vi\/blog\/34-5kv-switchgear-guide\/","title":{"rendered":"T\u1ee7 \u0111i\u1ec7n trung th\u1ebf 34.5 kV: Th\u00f4ng s\u1ed1 \u0111\u1ecbnh m\u1ee9c, B\u1ea3o v\u1ec7 &amp; Mua s\u1eafm"},"content":{"rendered":"<p><strong>T\u1ee7 \u0111i\u1ec7n trung th\u1ebf 34,5 kV th\u01b0\u1eddng \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh \u1edf c\u1ea5p \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a 38 kV v\u00e0 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi m\u1ee9c c\u00e1ch \u0111i\u1ec7n c\u1ee7a h\u1ec7 th\u1ed1ng, d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c, kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng ng\u1eafn m\u1ea1ch, ch\u1ebf \u0111\u1ed9 n\u1ed1i \u0111\u1ea5t, \u1ee9ng d\u1ee5ng \u0111\u00f3ng c\u1eaft v\u00e0 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 s\u1ef1 c\u1ed1 h\u1ed3 quang n\u1ed9i b\u1ed9.<\/strong> \u0110i\u1ec7n \u00e1p \u0111\u1ecbnh danh kh\u00f4ng ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb. Giao di\u1ec7n l\u01b0\u1edbi \u0111i\u1ec7n, \u0111\u1ed9 cao, \u0111\u1ea7u c\u00e1p ho\u1eb7c \u0111\u1ea7u n\u1ed1i tr\u00ean kh\u00f4ng, nhi\u1ec7m v\u1ee5 m\u00e1y c\u1eaft, d\u1eef li\u1ec7u CT\/VT, b\u1ea3o v\u1ec7 v\u00e0 h\u1ec7 th\u1ed1ng x\u1ea3 \u00e1p ph\u00f2ng quy\u1ebft \u0111\u1ecbnh c\u1ea5u h\u00ecnh th\u1ef1c t\u1ebf.<\/p>\n<div class=\"lbaji-key-takeaways\"><h2>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2><ul><li>Ch\u1ec9 \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a \u0111\u1ecbnh m\u1ee9c v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u00e1ch \u0111i\u1ec7n, kh\u00f4ng ch\u1ec9 ri\u00eang \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh 34,5 kV.<\/li><li>Ph\u1ed1i h\u1ee3p kh\u1ea3 n\u0103ng c\u1eaft v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch c\u1ee7a m\u00e1y c\u1eaft v\u1edbi nghi\u00ean c\u1ee9u s\u1ef1 c\u1ed1.<\/li><li>Ph\u00e2n lo\u1ea1i h\u1ed3 quang ph\u1ed1i h\u1ee3p, c\u00e1c \u0111\u1ea7u c\u1ef1c, b\u1ea3o v\u1ec7 v\u00e0 thi\u1ebft k\u1ebf ph\u00f2ng.<\/li><\/ul><\/div>\n<h2>C\u1ea5p \u0111i\u1ec7n \u00e1p v\u00e0 Ph\u1ed1i h\u1ee3p c\u00e1ch \u0111i\u1ec7n<\/h2><figure class=\"wp-block-image size-large\"><img decoding=\"async\" alt=\"Metal-clad switchgear compartments\" loading=\"lazy\" src=\"https:\/\/lbajiele.com\/wp-content\/uploads\/2026\/08\/air-insulated-switchgear-compartments.png\"\/><figcaption>C\u00e1c ng\u0103n thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i.<\/figcaption><\/figure>\n<p>H\u1ec7 th\u1ed1ng danh \u0111\u1ecbnh 34,5 kV th\u01b0\u1eddng s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb c\u00f3 \u0111\u1ecbnh m\u1ee9c t\u1ed1i \u0111a 38 kV. Kh\u1ea3 n\u0103ng ch\u1ecbu xung \u0111i\u1ec7n s\u00e9t, kh\u1ea3 n\u0103ng ch\u1ecbu \u0111i\u1ec7n \u00e1p t\u1ea7n s\u1ed1 ngu\u1ed3n, thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t van, c\u00e1ch \u0111i\u1ec7n c\u00e1p v\u00e0 kho\u1ea3ng c\u00e1ch ph\u00f3ng \u0111i\u1ec7n ph\u1ea3i ph\u1ed1i h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n c\u1ee7a \u0111\u01a1n v\u1ecb \u0111i\u1ec7n l\u1ef1c v\u00e0 m\u1ee9c \u0111\u1ed9 ph\u01a1i nhi\u1ec5m t\u1ea1i tr\u1ea1m. Ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i \u0111\u1ea5t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh qu\u00e1 \u0111i\u1ec7n \u00e1p t\u1ea1m th\u1eddi v\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t van.<\/p>\n<p>\u0110\u1ed9 cao l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i c\u1ee7a kh\u00f4ng kh\u00ed v\u00e0 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch ph\u00f3ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh ho\u1eb7c \u0111\u1ecbnh m\u1ee9c c\u00e1ch \u0111i\u1ec7n cao h\u01a1n. \u00d4 nhi\u1ec5m v\u00e0 s\u1ef1 ng\u01b0ng t\u1ee5 c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y kho\u1ea3ng c\u00e1ch r\u00f2 b\u1ec1 m\u1eb7t v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t v\u1ecf b\u1ecdc.<\/p>\n<h2>\u0110\u1ecbnh m\u1ee9c D\u00f2ng \u0111i\u1ec7n, S\u1ef1 c\u1ed1 v\u00e0 M\u00e1y c\u1eaft<\/h2>\n<p>D\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c c\u1ee7a thanh c\u00e1i v\u00e0 thi\u1ebft b\u1ecb c\u1ea5p ngu\u1ed3n ph\u1ea3n \u00e1nh t\u1ea3i th\u1ef1c t\u1ebf, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00f4ng su\u1ea5t trong t\u01b0\u01a1ng lai. Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng d\u00f2ng ng\u1eafn h\u1ea1n v\u00e0 d\u00f2ng \u0111\u1ec9nh ph\u1ea3i v\u01b0\u1ee3t qu\u00e1 d\u00f2ng s\u1ef1 c\u1ed1 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u trong kho\u1ea3ng th\u1eddi gian x\u00e1c \u0111\u1ecbnh. M\u00e1y c\u1eaft c\u1ea7n c\u00f3 c\u00e1c \u0111\u1ecbnh m\u1ee9c c\u1eaft, \u0111\u00f3ng v\u00e0 ch\u1ebf \u0111\u1ed9 v\u1eadn h\u00e0nh ph\u00f9 h\u1ee3p.<\/p>\n<p>C\u00e1c nhi\u1ec7m v\u1ee5 \u1ee9ng d\u1ee5ng nh\u01b0 \u0111\u00f3ng \u0111i\u1ec7n m\u00e1y bi\u1ebfn \u00e1p, chuy\u1ec3n m\u1ea1ch t\u1ee5 \u0111i\u1ec7n, chuy\u1ec3n m\u1ea1ch kh\u00e1ng \u0111i\u1ec7n v\u00e0 n\u1ea1p \u0111i\u1ec7n c\u00e1p \u0111\u00f2i h\u1ecfi vi\u1ec7c \u0111\u00e1nh gi\u00e1 v\u01b0\u1ee3t ra ngo\u00e0i m\u1ed9t con s\u1ed1 s\u1ef1 c\u1ed1 \u0111\u1ed1i x\u1ee9ng. \u0110i\u1ec7n \u00e1p ph\u1ee5c h\u1ed3i qu\u00e1 \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u00e1nh l\u1eeda l\u1ea1i c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh vi\u1ec7c l\u1ef1a ch\u1ecdn.<\/p>\n<h2>B\u1ea3o v\u1ec7, \u0110o l\u01b0\u1eddng v\u00e0 \u0110i\u1ec1u khi\u1ec3n<\/h2><figure class=\"wp-block-image size-large\"><img decoding=\"async\" alt=\"Medium-voltage distribution switchgear\" loading=\"lazy\" src=\"https:\/\/lbajiele.com\/wp-content\/uploads\/2026\/08\/medium-voltage-distribution-switchgear.png\"\/><figcaption>T\u1ee7 \u0111i\u1ec7n ph\u00e2n ph\u1ed1i trung th\u1ebf.<\/figcaption><\/figure>\n<p>T\u1ef7 s\u1ed1 m\u00e1y bi\u1ebfn d\u00f2ng (CT), c\u1ea5p ch\u00ednh x\u00e1c, \u0111\u1ed9 b\u00e3o h\u00f2a v\u00e0 t\u1ea3i ph\u1ea3i h\u1ed7 tr\u1ee3 b\u1ea3o v\u1ec7 v\u00e0 \u0111o l\u01b0\u1eddng. M\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n \u00e1p (VT) y\u00eau c\u1ea7u xem x\u00e9t v\u1ec1 t\u1ef7 s\u1ed1, c\u00e1ch \u0111\u1ea5u n\u1ed1i, c\u1ea7u ch\u00ec v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng s\u1eaft t\u1eeb. C\u00e1c r\u01a1-le c\u00f3 th\u1ec3 cung c\u1ea5p ch\u1ee9c n\u0103ng qu\u00e1 d\u00f2ng pha v\u00e0 ch\u1ea1m \u0111\u1ea5t, so l\u1ec7ch, \u0111i\u1ec7n \u00e1p, t\u1ea7n s\u1ed1, ch\u1ed1ng \u0111\u00f3ng l\u1eb7p l\u1ea1i m\u00e1y c\u1eaft, ph\u00e1t hi\u1ec7n h\u1ed3 quang v\u00e0 truy\u1ec1n th\u00f4ng.<\/p>\n<p>M\u1ea1ch c\u1eaft ngu\u1ed3n DC v\u00e0 m\u1ea1ch \u0111\u00f3ng, logic ch\u1ed1ng \u0111\u00f3ng l\u1eb7p (anti-pump), c\u00e1c kh\u00f3a li\u00ean \u0111\u1ed9ng (interlocks), c\u00e1c \u0111i\u1ec3m SCADA v\u00e0 \u0111\u1ed3ng b\u1ed9 th\u1eddi gian ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong s\u01a1 \u0111\u1ed3 ch\u1ee9c n\u0103ng. C\u00e1c c\u00f4ng t\u1eafc th\u1eed nghi\u1ec7m v\u00e0 c\u00e1c \u0111i\u1ec3m c\u00e1ch ly d\u1ec5 ti\u1ebfp c\u1eadn h\u1ed7 tr\u1ee3 cho qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m nghi\u1ec7m thu (commissioning).<\/p>\n<h2>B\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt t\u1ee7 \u0111i\u1ec7n trung th\u1ebf 34.5 kV<\/h2><figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th scope=\"col\">Tham s\u1ed1<\/th><th scope=\"col\">C\u00e2u h\u1ecfi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ti\u00eau bi\u1ec3u<\/th><th scope=\"col\">B\u1eb1ng ch\u1ee9ng<\/th><\/tr><\/thead><tbody><tr><td>C\u1ea5p \u0111i\u1ec7n \u00e1p<\/td><td>Thi\u1ebft b\u1ecb c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cho c\u1ea5p 38 kV v\u00e0 m\u1ee9c xung c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n (BIL) y\u00eau c\u1ea7u kh\u00f4ng?<\/td><td>Bi\u1ec3n t\u00ean v\u00e0 ch\u1ee9ng nh\u1eadn c\u00e1ch \u0111i\u1ec7n<\/td><\/tr><tr><td>D\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c<\/td><td>Thanh c\u00e1i v\u00e0 c\u00e1c tuy\u1ebfn ph\u00e2n ph\u1ed1i (feeder) c\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c t\u1ea3i b\u00ecnh th\u01b0\u1eddng v\u00e0 t\u1ea3i s\u1ef1 c\u1ed1 kh\u00f4ng?<\/td><td>Kh\u1ea3o s\u00e1t d\u00f2ng c\u00f4ng su\u1ea5t<\/td><\/tr><tr><td>D\u00f2ng c\u1eaft s\u1ef1 c\u1ed1<\/td><td>C\u00e1c \u0111\u1ecbnh m\u1ee9c ng\u1eafn h\u1ea1n, \u0111\u1ec9nh v\u00e0 m\u00e1y c\u1eaft c\u00f3 v\u01b0\u1ee3t qu\u00e1 ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c kh\u00f4ng?<\/td><td>Nghi\u00ean c\u1ee9u ng\u1eafn m\u1ea1ch v\u00e0 th\u1eed nghi\u1ec7m \u0111i\u1ec3n h\u00ecnh<\/td><\/tr><tr><td>Ph\u00e2n lo\u1ea1i cung<\/td><td>Nh\u1eefng ph\u00eda, d\u00f2ng \u0111i\u1ec7n v\u00e0 th\u1eddi gian n\u00e0o \u0111\u01b0\u1ee3c ki\u1ec3m tra?<\/td><td>B\u00e1o c\u00e1o h\u1ed3 quang n\u1ed9i b\u1ed9<\/td><\/tr><tr><td>Ch\u1ea5m d\u1ee9t h\u1ee3p \u0111\u1ed3ng<\/td><td>K\u00edch th\u01b0\u1edbc c\u00e1p, \u0111\u1ea7u c\u00e1p, thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t v\u00e0 c\u00e1c giao di\u1ec7n m\u00e1y bi\u1ebfn d\u00f2ng (CT) \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p v\u1edbi nhau ch\u01b0a?<\/td><td>B\u1ea3n v\u1ebd m\u1eb7t c\u1eaft \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td><\/tr><\/tbody><\/table><\/figure>\n<h2>Chi\u1ebfn l\u01b0\u1ee3c X\u00e2y d\u1ef1ng v\u00e0 C\u1ed1t truy\u1ec7n<\/h2>\n<p>K\u1ebft c\u1ea5u b\u1ecdc kim lo\u1ea1i ph\u00e2n t\u00e1ch c\u00e1c khoang m\u00e1y c\u1eaft, thanh d\u1eabn, c\u00e1p v\u00e0 h\u1ea1 \u00e1p. M\u00e1y c\u1eaft ki\u1ec3u k\u00e9o ra, m\u00e0n che v\u00e0 c\u00e1c thi\u1ebft b\u1ecb n\u1ed1i \u0111\u1ea5t gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec. B\u00e1n k\u00ednh u\u1ed1n c\u00e1p, n\u00f3n gi\u1ea3m \u1ee9ng su\u1ea5t, thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t v\u00e0 h\u01b0\u1edbng \u0111i c\u00e1p \u0111\u00f2i h\u1ecfi kh\u00f4ng gian \u0111\u1ea5u n\u1ed1i \u0111\u1ee7 r\u1ed9ng.<\/p>\n<p>\u0110\u1ecbnh m\u1ee9c h\u1ed3 quang n\u1ed9i b\u1ed9 n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n, th\u1eddi gian v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn \u0111\u00e3 th\u1eed nghi\u1ec7m. C\u00e1c \u1ed1ng d\u1eabn ho\u1eb7c bu\u1ed3ng th\u00f4ng gi\u00f3 ph\u1ea3i x\u1ea3 th\u1ea3i an to\u00e0n, v\u00e0 ph\u00f2ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t v\u00e0 l\u1ed1i tho\u00e1t hi\u1ec3m. Vi\u1ec7c b\u1ea3o tr\u00ec ph\u1ea3i duy tr\u00ec c\u00e1c c\u1eeda, ch\u1ed1t v\u00e0 v\u00e1ch ng\u0103n \u1edf \u0111\u00fang c\u1ea5u h\u00ecnh \u0111\u00e3 th\u1eed nghi\u1ec7m.<\/p>\n<h2>X\u00e1c th\u1ef1c k\u1ef9 thu\u1eadt v\u00e0 Gi\u1edbi h\u1ea1n an to\u00e0n<\/h2><p>H\u01b0\u1edbng d\u1eabn n\u00e0y h\u1ed7 tr\u1ee3 vi\u1ec7c l\u1eadp th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 mua s\u1eafm; t\u00e0i li\u1ec7u n\u00e0y kh\u00f4ng thay th\u1ebf cho nghi\u00ean c\u1ee9u d\u1ef1 \u00e1n, quy chu\u1ea9n hi\u1ec7n h\u00e0nh, h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c c\u00f4ng vi\u1ec7c c\u1ee7a nh\u00e2n vi\u00ean \u0111i\u1ec7n c\u00f3 chuy\u00ean m\u00f4n. H\u00e3y x\u00e1c minh c\u00e1c n\u1ed9i dung sau tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb, th\u1eed nghi\u1ec7m, \u0111\u1ea5u d\u00e2y ho\u1eb7c \u0111\u00f3ng \u0111i\u1ec7n:<\/p><ul><li>X\u00e1c nh\u1eadn \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i \u0111\u1ea5t.<\/li><li>\u00c1p d\u1ee5ng c\u00e1c hi\u1ec7u ch\u1ec9nh v\u1ec1 \u0111\u1ed9 cao v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/li><li>Xem x\u00e9t c\u00e1c nhi\u1ec7m v\u1ee5 chuy\u1ec3n m\u1ea1ch \u0111\u1eb7c bi\u1ec7t v\u00e0 \u0111i\u1ec7n \u00e1p ph\u1ee5c h\u1ed3i qu\u00e1 \u0111\u1ed9.<\/li><li>X\u00e1c th\u1ef1c hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn d\u00f2ng (CT) \u0111\u1ed1i v\u1edbi s\u1ef1 c\u1ed1 t\u1ed1i \u0111a v\u00e0 t\u1ed1i thi\u1ec3u.<\/li><li>Ph\u1ed1i h\u1ee3p h\u1ec7 th\u1ed1ng h\u00fat h\u1ed3 quang v\u00e0 \u00e1p su\u1ea5t ph\u00f2ng v\u1edbi thi\u1ebft k\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra.<\/li><\/ul>\n<h2>Th\u00f4ng tin c\u1ea7n \u0111\u01b0a v\u00e0o Y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/h2><p>M\u1ed9t b\u00e1o gi\u00e1 h\u1eefu \u00edch ph\u1ea3i d\u1ef1a tr\u00ean c\u00f9ng m\u1ed9t ranh gi\u1edbi k\u1ef9 thu\u1eadt cho m\u1ecdi nh\u00e0 cung c\u1ea5p. H\u00e3y bao g\u1ed3m c\u00e1c th\u00f4ng tin sau v\u00e0 y\u00eau c\u1ea7u li\u1ec7t k\u00ea r\u00f5 r\u00e0ng m\u1ecdi sai l\u1ec7ch:<\/p><ul><li>\u0110i\u1ec7n \u00e1p danh \u0111\u1ecbnh\/t\u1ed1i \u0111a, t\u1ea7n s\u1ed1, n\u1ed1i \u0111\u1ea5t v\u00e0 m\u1ee9c c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n (BIL).<\/li><li>D\u00f2ng \u0111i\u1ec7n thanh c\u00e1i v\u00e0 d\u00f2ng \u0111i\u1ec7n nh\u00e1nh, d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 v\u00e0 th\u1eddi gian.<\/li><li>Nhi\u1ec7m v\u1ee5 c\u1ee7a m\u00e1y c\u1eaft, m\u00e1y bi\u1ebfn d\u00f2ng (CT), m\u00e1y bi\u1ebfn \u0111i\u1ec7n \u00e1p (VT), r\u01a1-le v\u00e0 c\u00e1c giao th\u1ee9c truy\u1ec1n th\u00f4ng.<\/li><li>Ph\u00e2n lo\u1ea1i h\u1ed3 quang n\u1ed9i b\u1ed9, b\u1ed1 tr\u00ed ph\u00f2ng v\u00e0 chi ti\u1ebft c\u00e1p.<\/li><li>S\u01a1 \u0111\u1ed3 m\u1ed9t s\u1ee3i, danh s\u00e1ch thi\u1ebft b\u1ecb, kh\u00f3a li\u00ean \u0111\u1ed9ng, th\u1eed nghi\u1ec7m, ph\u1ee5 t\u00f9ng v\u00e0 t\u00e0i li\u1ec7u.<\/li><\/ul>\n<h2>T\u1eeb D\u1eef li\u1ec7u K\u1ef9 thu\u1eadt \u0111\u1ebfn m\u1ed9t Quy\u1ebft \u0111\u1ecbnh \u0111\u01b0\u1ee3c Ph\u00ea duy\u1ec7t<\/h2><p>S\u1eed d\u1ee5ng quy tr\u00ecnh \u0111\u00e1nh gi\u00e1 theo t\u1eebng giai \u0111o\u1ea1n thay v\u00ec ph\u00ea duy\u1ec7t k\u1ebft qu\u1ea3 kh\u1edbp danh m\u1ee5c \u0111\u1ea7u ti\u00ean. B\u1eaft \u0111\u1ea7u v\u1edbi c\u1ea5p \u0111i\u1ec7n \u00e1p v\u00e0 ph\u1ed1i h\u1ee3p c\u00e1ch \u0111i\u1ec7n, sau \u0111\u00f3 \u0111\u1ed1i chi\u1ebfu c\u00e1c \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n, s\u1ef1 c\u1ed1 v\u00e0 m\u00e1y c\u1eaft v\u1edbi h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7, \u0111o l\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u khi\u1ec3n. Ho\u00e0n t\u1ea5t vi\u1ec7c \u0111\u00e1nh gi\u00e1 b\u1eb1ng chi\u1ebfn l\u01b0\u1ee3c k\u1ebft c\u1ea5u v\u00e0 h\u1ed3 quang \u0111i\u1ec7n. \u1ede m\u1ed7i giai \u0111o\u1ea1n, h\u00e3y ghi l\u1ea1i t\u00e0i li\u1ec7u ngu\u1ed3n, \u0111\u01a1n v\u1ecb t\u00ednh, tr\u01b0\u1eddng h\u1ee3p v\u1eadn h\u00e0nh v\u00e0 ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m ph\u00ea duy\u1ec7t. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n m\u1ed9t gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c sao ch\u00e9p t\u1eeb b\u1ea3n v\u1ebd c\u0169, nh\u00e3n h\u1ec7 th\u1ed1ng danh \u0111\u1ecbnh ho\u1eb7c s\u1ea3n ph\u1ea9m kh\u00f4ng li\u00ean quan tr\u1edf th\u00e0nh th\u00f4ng s\u1ed1 thi\u1ebft k\u1ebf kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p><p>Tr\u01b0\u1edbc khi nghi\u1ec7m thu, h\u00e3y so s\u00e1nh ph\u1ea3n h\u1ed3i c\u1ee7a nh\u00e0 th\u1ea7u t\u1eebng d\u00f2ng m\u1ed9t v\u1edbi Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) v\u00e0 \u0111\u00e1nh d\u1ea5u m\u1ecdi \u0111i\u1ec3m ngo\u1ea1i l\u1ec7. X\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c b\u1ea3n v\u1ebd, t\u00ednh to\u00e1n, th\u00f4ng s\u1ed1 c\u00e0i \u0111\u1eb7t, ch\u1ee9ng ch\u1ec9 v\u00e0 b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m \u0111\u1ec1u \u0111\u1ec1 c\u1eadp ch\u00ednh x\u00e1c \u0111\u1ebfn m\u1eabu v\u00e0 phi\u00ean b\u1ea3n \u0111\u01b0\u1ee3c ch\u00e0o th\u1ea7u. L\u01b0u gi\u1eef h\u1ed3 s\u01a1 tr\u00ecnh duy\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, d\u1eef li\u1ec7u tr\u00ean nh\u00e3n thi\u1ebft b\u1ecb, k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m t\u1ea1i x\u01b0\u1edfng v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 \u0111o \u0111\u1ea1c khi ch\u1ea1y th\u1eed l\u00e0m c\u01a1 s\u1edf b\u1ea3o tr\u00ec. N\u1ebfu c\u00f3 s\u1ef1 thay \u0111\u1ed5i v\u1ec1 \u0111\u1ecbnh m\u1ee9c, k\u1ebft n\u1ed1i, m\u00f4i tr\u01b0\u1eddng ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m, h\u00e3y l\u1eb7p l\u1ea1i vi\u1ec7c \u0111\u00e1nh gi\u00e1 \u0111\u1ed1i v\u1edbi ph\u1ea7n b\u1ecb \u1ea3nh h\u01b0\u1edfng thay v\u00ec gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng k\u1ebft lu\u1eadn ban \u0111\u1ea7u v\u1eabn c\u00f2n gi\u00e1 tr\u1ecb.<\/p>\n<p>Vi\u1ec7c ki\u1ec3m so\u00e1t t\u00e0i li\u1ec7u ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c phi\u00ean b\u1ea3n, tr\u1ea1ng th\u00e1i ph\u00ea duy\u1ec7t v\u00e0 c\u00e1c t\u1ec7p b\u1ecb thay th\u1ebf. C\u00e1c \u0111\u1ed9i ng\u0169 hi\u1ec7n tr\u01b0\u1eddng ph\u1ea3i nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c gi\u00e1 tr\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t gi\u1ed1ng nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c mua s\u1eafm, trong khi c\u00e1c h\u1ed3 s\u01a1 ch\u1ea1y th\u1eed ph\u1ea3i ghi l\u1ea1i m\u1ecdi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t. Kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thay th\u1ebf nhi\u1ec1u n\u0103m sau \u0111\u00f3: k\u1ef9 s\u01b0 ti\u1ebfp theo c\u1ea7n c\u00e1c giao di\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh v\u00e0 l\u1ecbch s\u1eed ki\u1ec3m tra, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u00f4 t\u1ea3 ch\u01b0a \u0111\u1ea7y \u0111\u1ee7 \u0111\u01b0\u1ee3c sao ch\u00e9p t\u1eeb \u0111\u01a1n \u0111\u1eb7t h\u00e0ng.<\/p>\n<h2>Th\u00f4ng tin bao qu\u00e1t d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm hi\u1ec7n t\u1ea1i<\/h2><p>C\u00e1c \u0111\u00e1nh gi\u00e1 trong top 20 Google hi\u1ec7n t\u1ea1i c\u1ee7a Hoa K\u1ef3 li\u00ean t\u1ee5c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c ch\u1ee7 \u0111\u1ec1 bao g\u1ed3m T\u00ednh n\u0103ng s\u1ea3n ph\u1ea9m, Kh\u00e1m ph\u00e1 T\u1ee7 \u0111i\u1ec7n &amp; Gi\u00e1 tr\u1ecb c\u1ee7a Nh\u00e0 s\u1ea3n xu\u1ea5t T\u1ee7 \u0111i\u1ec7n t\u00f9y ch\u1ec9nh, T\u1ee7 \u0111i\u1ec7n c\u00e1ch \u0111i\u1ec7n kh\u00ed GHA, \u0110\u1ecbnh m\u1ee9c, T\u1ee7 \u0111i\u1ec7n h\u00f2a \u0111\u1ed3ng b\u1ed9 trung th\u1ebf. B\u00e0i vi\u1ebft gi\u1ea3i quy\u1ebft c\u00e1c nhu c\u1ea7u \u0111\u00f3 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng theo tr\u00ecnh t\u1ef1 k\u1ef9 thu\u1eadt v\u00e0 mua s\u1eafm ban \u0111\u1ea7u; \u0111i\u1ec1u h\u01b0\u1edbng th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ed1i th\u1ee7 v\u00e0 t\u00e0i li\u1ec7u b\u00e1n h\u00e0ng kh\u00f4ng li\u00ean quan \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i tr\u1eeb.<\/p>\n<h2>T\u00e0i li\u1ec7u LBAJI li\u00ean quan<\/h2><p>Ti\u1ebfp t\u1ee5c v\u1edbi <a href=\"https:\/\/lbajiele.com\/vi\/blog\/complete-guide-to-medium-voltage-switchgear\/\">h\u01b0\u1edbng d\u1eabn thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft trung th\u1ebf<\/a> <a href=\"https:\/\/lbajiele.com\/vi\/blog\/air-insulated-medium-voltage-switchgear-guide\/\">C\u1ea9m nang thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft c\u00e1ch \u0111i\u1ec7n b\u1eb1ng kh\u00f4ng kh\u00ed<\/a> <a href=\"https:\/\/lbajiele.com\/vi\/danh-muc-san-pham\/switchgear\/\">T\u1ee7 \u0111i\u1ec7n trung th\u1ebf LBAJI<\/a>. Nh\u1eefng t\u00e0i nguy\u00ean n\u00e0y gi\u00fap k\u1ebft n\u1ed1i vi\u1ec7c t\u00ednh to\u00e1n ho\u1eb7c quy\u1ebft \u0111\u1ecbnh l\u1ef1a ch\u1ecdn linh ki\u1ec7n v\u1edbi m\u1ed9t b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ho\u00e0n ch\u1ec9nh c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p, thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft, thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c thi\u1ebft b\u1ecb ph\u00e2n ph\u1ed1i.<\/p>\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<\/div>\n<\/div>\n<section class=\"lbaji-technical-references\"><h2>T\u00e0i li\u1ec7u tham kh\u1ea3o k\u1ef9 thu\u1eadt v\u00e0 \u0110\u1ecdc th\u00eam<\/h2><ul><li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/67180\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">IEC 62271-200<\/a> \u2014 Y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u b\u1ecdc kim lo\u1ea1i.<\/li><li><a href=\"https:\/\/standards.ieee.org\/\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">Hi\u1ec7p h\u1ed9i Ti\u00eau chu\u1ea9n IEEE<\/a> \u2014 Ti\u00eau chu\u1ea9n thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft C37.<\/li><li><a href=\"https:\/\/www.osha.gov\/electrical\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">An to\u00e0n \u0111i\u1ec7n OSHA<\/a> \u2014 B\u1ed1i c\u1ea3nh th\u1ef1c h\u00e0nh c\u00f4ng vi\u1ec7c v\u1ec1 \u0111i\u1ec7n.<\/li><\/ul><\/section>\n<h2>K\u1ebft lu\u1eadn<\/h2><p>D\u00e3y thi\u1ebft b\u1ecb 34,5 kV l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng c\u1ea5p 38 kV \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p \u0111\u1ed3ng b\u1ed9, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c ng\u0103n t\u1ee7 \u0111i\u1ec7n. C\u00e1c y\u00eau c\u1ea7u v\u1ec1 c\u00e1ch ly, \u0111\u00f3ng c\u1eaft, s\u1ef1 c\u1ed1, b\u1ea3o v\u1ec7, \u0111\u1ea7u c\u00e1p v\u00e0 h\u1ed3 quang ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ee9ng minh b\u1eb1ng c\u00e1c nghi\u00ean c\u1ee9u, b\u1ea3n v\u1ebd v\u00e0 bi\u00ean b\u1ea3n th\u1eed nghi\u1ec7m.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u1ee7 \u0111i\u1ec7n 34,5 kV th\u01b0\u1eddng \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh \u1edf c\u1ea5p \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a 38 kV v\u00e0 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi m\u1ee9c c\u00e1ch \u0111i\u1ec7n c\u1ee7a h\u1ec7 th\u1ed1ng, d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c, kh\u1ea3 n\u0103ng ch\u1ecbu ng\u1eafn m\u1ea1ch, vi\u1ec7c n\u1ed1i \u0111\u1ea5t, \u1ee9ng d\u1ee5ng \u0111\u00f3ng c\u1eaft v\u00e0 h\u1ed3 quang n\u1ed9i b\u1ed9\u2026<\/p>","protected":false},"author":6,"featured_media":2878,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[53],"tags":[83,75],"class_list":["post-2879","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-switchgear-protection","tag-power-distribution","tag-switchgear"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/posts\/2879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/comments?post=2879"}],"version-history":[{"count":1,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/posts\/2879\/revisions"}],"predecessor-version":[{"id":3017,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/posts\/2879\/revisions\/3017"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/media\/2878"}],"wp:attachment":[{"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/media?parent=2879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/categories?post=2879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lbajiele.com\/vi\/wp-json\/wp\/v2\/tags?post=2879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}