{"id":225,"date":"2022-03-25T03:32:42","date_gmt":"2022-03-25T03:32:42","guid":{"rendered":"https:\/\/www.voltage-tester.com\/?p=225"},"modified":"2025-04-24T02:16:23","modified_gmt":"2025-04-24T02:16:23","slug":"how-do-you-test-the-winding-resistance-of-a-transformer","status":"publish","type":"post","link":"https:\/\/www.voltage-tester.com\/vi\/how-do-you-test-the-winding-resistance-of-a-transformer-article\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y c\u1ee7a m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p?"},"content":{"rendered":"<p><strong>\u2160: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y c\u1ee7a m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p?<\/strong><\/p>\n\n\n\n<p><strong>\u0110i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y m\u00e1y bi\u1ebfn \u00e1p<\/strong>&nbsp;C\u00e1c gi\u00e1 tr\u1ecb \u0111o \u0111\u01b0\u1ee3c thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch cho d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 \u0111\u00e3 bi\u1ebft \u0111i qua cu\u1ed9n d\u00e2y \u0111ang \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u00e0 \u0111o s\u1ef1 s\u1ee5t \u00e1p t\u1ea1i m\u1ed7i c\u1ef1c (theo \u0110\u1ecbnh lu\u1eadt Ohm).<\/p>\n\n\n\n<p>\u0110i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y trong m\u00e1y bi\u1ebfn \u00e1p s\u1ebd thay \u0111\u1ed5i do hi\u1ec7n t\u01b0\u1ee3ng ch\u1eadp m\u1ea1ch gi\u1eefa c\u00e1c v\u00f2ng d\u00e2y, c\u00e1c \u0111i\u1ec3m n\u1ed1i l\u1ecfng l\u1ebbo ho\u1eb7c c\u00e1c ti\u1ebfp \u0111i\u1ec3m b\u1ecb h\u01b0 h\u1ecfng trong b\u1ed9 chuy\u1ec3n c\u1ea5p. B\u1ea5t k\u1ec3 c\u1ea5u h\u00ecnh nh\u01b0 th\u1ebf n\u00e0o, vi\u1ec7c \u0111o \u0111i\u1ec7n tr\u1edf th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n gi\u1eefa c\u00e1c pha v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb \u0111o \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi nhau \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem ch\u00fang c\u00f3 n\u1eb1m trong gi\u1edbi h\u1ea1n cho ph\u00e9p hay kh\u00f4ng.<\/p>\n\n\n\n<p><strong>\u2161: Ph\u01b0\u01a1ng ph\u00e1p n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y?<\/strong><\/p>\n\n\n\n<p>\u0110i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111o tr\u1ef1c ti\u1ebfp b\u1eb1ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n tr\u1edf. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c l\u00e0 t\u00ednh to\u00e1n \u0111i\u1ec7n tr\u1edf b\u1eb1ng c\u00e1ch \u0111o d\u00f2ng \u0111i\u1ec7n \u0111i qua t\u1eebng cu\u1ed9n d\u00e2y, s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 \u0111o d\u00f2ng \u0111i\u1ec7n A, khi c\u00f3 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c c\u1ea5p v\u00e0o v\u00e0 \u0111o b\u1eb1ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u00e1p V.<\/p>\n\n\n\n<p><strong>\u2163: C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a m\u00e1y \u0111o DCR\/m\u00e1y \u0111o \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>M\u1eb7t h\u00e0ng<\/td><td>Tham s\u1ed1<\/td><td>s\u1ef1 kh\u00f4ng ch\u00ednh x\u00e1c<\/td><\/tr><tr><td rowspan=\"2\">D\u00f2ng \u0111i\u1ec7n th\u1eed nghi\u1ec7m<\/td><td>T\u1ef0 \u0110\u1ed8NG, &lt;20mA, 40mA,<\/td><td rowspan=\"2\">&nbsp;<\/td><\/tr><tr><td>200mA, 1A, 5A, 10A<\/td><\/tr><tr><td rowspan=\"6\">Ph\u1ea1m vi<\/td><td>0,5 m\u03a9~0,8 \u03a9 (10 A)<\/td><td rowspan=\"5\">\u00b1(0,21 TP3T + 2 ch\u1eef s\u1ed1)<\/td><\/tr><tr><td>1 m\u03a9\u20134 \u03a9 (5 A)<\/td><\/tr><tr><td>5 m\u03a9\u201320 \u03a9 (1 A)<\/td><\/tr><tr><td>100 m\u03a9\u2013100 \u03a9 (200 mA)<\/td><\/tr><tr><td>1\u03a9\u2013500\u03a9 (40mA)<\/td><\/tr><tr><td>100 \u03a9\u2013100 k\u03a9 (&lt;20 mA)<\/td><td>\u00b1(0,51 TP3T + 2 ch\u1eef s\u1ed1)<\/td><\/tr><tr><td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i t\u1ed1t nh\u1ea5t<\/td><td colspan=\"2\">0,1 \u03bc\u03a9<\/td><\/tr><tr><td>M\u00e0n h\u00ecnh<\/td><td>M\u00e0n h\u00ecnh c\u1ea3m \u1ee9ng LCD m\u00e0u 7 inch<\/td><td>M\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb \u0111i\u1ec7n tr\u1edf v\u1edbi 4 ch\u1eef s\u1ed1 c\u00f3 \u00fd ngh\u0129a<\/td><\/tr><tr><td>L\u01b0u tr\u1eef d\u1eef li\u1ec7u<\/td><td colspan=\"2\">1.000 b\u1ed9<\/td><\/tr><tr><td>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/td><td colspan=\"2\">0\u00b0C~40\u00b0C<\/td><\/tr><tr><td>\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i<\/td><td colspan=\"2\">&lt;90%RH, kh\u00f4ng ng\u01b0ng t\u1ee5<\/td><\/tr><tr><td>Ngu\u1ed3n \u0111i\u1ec7n<\/td><td>220 V AC \u00b110 V, 50 Hz \u00b11 Hz<\/td><td>C\u1ea7u ch\u00ec 2A<\/td><\/tr><tr><td>C\u00f4ng su\u1ea5t t\u1ed1i \u0111a<\/td><td colspan=\"2\">200 W<\/td><\/tr><tr><td>K\u00edch th\u01b0\u1edbc<\/td><td colspan=\"2\">360 \u00d7 290 \u00d7 170 (mm)<\/td><\/tr><tr><td>Tr\u1ecdng l\u01b0\u1ee3ng<\/td><td>H\u1ed9p d\u1ee5ng c\u1ee5: 6 kg<\/td><td>H\u1ed9p d\u00e2y: 5 kg<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 h\u00ecnh \u1ea3nh khi s\u1eed d\u1ee5ng:<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"300\" src=\"https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/How-do-you-test-the-winding-resistance-of-a-transformer1.webp\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y c\u1ee7a m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p?\" class=\"wp-image-230\" srcset=\"https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/How-do-you-test-the-winding-resistance-of-a-transformer1.webp 168w, https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/How-do-you-test-the-winding-resistance-of-a-transformer1-7x12.webp 7w\" sizes=\"auto, (max-width: 168px) 100vw, 168px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"300\" src=\"https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/MVIMG_20220307_161247-168x300-2.webp\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y c\u1ee7a m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p?\" class=\"wp-image-232\" srcset=\"https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/MVIMG_20220307_161247-168x300-2.webp 168w, https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/MVIMG_20220307_161247-168x300-2-7x12.webp 7w\" sizes=\"auto, (max-width: 168px) 100vw, 168px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"768\" src=\"https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/More-information-about-the-TTR-tester.jpg-1.webp\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y c\u1ee7a m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p?\" class=\"wp-image-231\" style=\"width:182px;height:auto\" srcset=\"https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/More-information-about-the-TTR-tester.jpg-1.webp 768w, https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/More-information-about-the-TTR-tester.jpg-1-300x300.webp 300w, https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/More-information-about-the-TTR-tester.jpg-1-150x150.webp 150w, https:\/\/www.voltage-tester.com\/wp-content\/uploads\/2025\/02\/More-information-about-the-TTR-tester.jpg-1-12x12.webp 12w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure><\/div>","protected":false},"excerpt":{"rendered":"<p>\u2160: How do you test the winding resistance of a transformer? Transformer winding resistance&nbsp;measurements are obtained by&nbsp;passing a known DC current through the winding under test and measuring the voltage drop across each terminal&nbsp;(Ohm&#8217;s Law). Winding resistance in transformers will change due to shorted turns, loose connections, or deteriorating contacts in tap changers. Regardless of [&hellip;]<\/p>","protected":false},"author":1,"featured_media":237,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[772],"tags":[],"class_list":["post-225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How do you test the winding resistance of a transformer - Run Test<\/title>\n<meta name=\"description\" content=\"China transformer test supplier, we provide Relay Protection Test, Resistance test, Circuit Breaker Test, and Partial Discharge Test for you with good price.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.voltage-tester.com\/vi\/how-do-you-test-the-winding-resistance-of-a-transformer-article\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How do you test the winding resistance of a transformer - 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