{"id":2755,"date":"2025-02-19T02:26:54","date_gmt":"2025-02-19T02:26:54","guid":{"rendered":"https:\/\/www.mingchele.com\/?p=2755"},"modified":"2025-03-05T03:28:33","modified_gmt":"2025-03-05T03:28:33","slug":"vector-group-for-transformer","status":"publish","type":"post","link":"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/","title":{"rendered":"Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p l\u00e0 g\u00ec?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Understanding_a_Transformer_Vector_Group\" >Hi\u1ec3u v\u1ec1 nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Why_is_a_Transformer_Vector_Group_Important\" >T\u1ea1i sao nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p l\u1ea1i quan tr\u1ecdng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Vector_Group_Classification_Understanding_Clock_Notation\" >Ph\u00e2n lo\u1ea1i nh\u00f3m vect\u01a1: Hi\u1ec3u v\u1ec1 k\u00fd hi\u1ec7u \u0111\u1ed3ng h\u1ed3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Common_Transformer_Vector_Groups\" >Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p chung<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Delta_vs_Wye_Star_Transformer_Connections\" >K\u1ebft n\u1ed1i m\u00e1y bi\u1ebfn \u00e1p Delta so v\u1edbi Wye (Star)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#How_Does_Vector_Group_Affect_Transformer_Phase\" >Nh\u00f3m vect\u01a1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn pha c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#How_to_Identify_a_Transformer_Vector_Group\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Choosing_the_Right_Transformer_Vector_Group\" >Ch\u1ecdn \u0111\u00fang nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Practical_Applications_of_Vector_Groups\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a nh\u00f3m vect\u01a1<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.mingchele.com\/vi\/blog\/transformer\/vector-group-for-transformer\/#Transformer_Vector_Group_Conclusion\" >Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p: K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 l\u1ec7ch pha v\u00e0 c\u1ea5u h\u00ecnh cu\u1ed9n d\u00e2y gi\u1eefa ph\u00eda s\u01a1 c\u1ea5p v\u00e0 th\u1ee9 c\u1ea5p c\u1ee7a bi\u1ebfn \u00e1p.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c m\u00e1y bi\u1ebfn \u00e1p k\u1ebft n\u1ed1i trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y kh\u00e1m ph\u00e1 c\u00e1c nh\u00f3m vect\u01a1, \u00fd ngh\u0129a c\u1ee7a ch\u00fang v\u00e0 c\u00e1ch ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i m\u00e1y bi\u1ebfn \u00e1p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Understanding_a_Transformer_Vector_Group\"><\/span>Hi\u1ec3u v\u1ec1 nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n, nh\u00f3m vect\u01a1 m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 gi\u1eefa cu\u1ed9n d\u00e2y \u0111i\u1ec7n \u00e1p cao (s\u01a1 c\u1ea5p) v\u00e0 cu\u1ed9n d\u00e2y \u0111i\u1ec7n \u00e1p th\u1ea5p (th\u1ee9 c\u1ea5p) theo c\u00e1c thu\u1eadt ng\u1eef sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 l\u1ec7ch pha (g\u00f3c l\u1ec7ch gi\u1eefa \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra)<\/li>\n\n\n\n<li>C\u1ea5u h\u00ecnh cu\u1ed9n d\u00e2y (Delta ho\u1eb7c Wye)<\/li>\n\n\n\n<li>K\u00fd hi\u1ec7u \u0111\u1ed3ng h\u1ed3 (v\u1ecb tr\u00ed c\u1ee7a vect\u01a1 \u0111i\u1ec7n \u00e1p th\u1ee9 c\u1ea5p)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i nh\u00f3m vect\u01a1 m\u00e1y bi\u1ebfn \u00e1p \u0111\u1ec1u tu\u00e2n theo ph\u00e2n lo\u1ea1i ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p do IEC 60076-1 \u0111\u1eb7t ra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch trong m\u1ea1ng l\u01b0\u1edbi \u0111i\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_is_a_Transformer_Vector_Group_Important\"><\/span>T\u1ea1i sao nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p l\u1ea1i quan tr\u1ecdng?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn nh\u00f3m vect\u01a1 ph\u00f9 h\u1ee3p cho m\u00e1y bi\u1ebfn \u00e1p r\u1ea5t quan tr\u1ecdng v\u00ec n\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a h\u1ec7 th\u1ed1ng<\/strong>: \u0110\u1ea3m b\u1ea3o m\u00e1y bi\u1ebfn \u00e1p ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u v\u1ec1 pha v\u00e0 n\u1ed1i \u0111\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.<\/li>\n\n\n\n<li><strong>Ho\u1ea1t \u0111\u1ed9ng song song<\/strong>: Ch\u1ec9 nh\u1eefng m\u00e1y bi\u1ebfn \u00e1p c\u00f3 c\u00f9ng nh\u00f3m vect\u01a1 m\u1edbi c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng song song m\u00e0 kh\u00f4ng b\u1ecb l\u1ec7ch pha.<\/li>\n\n\n\n<li><strong>C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch ph\u00e2n ph\u1ed1i v\u00e0 qu\u1ea3n l\u00fd t\u1ea3i trong m\u1ea1ng l\u01b0\u1edbi \u0111i\u1ec7n.<\/li>\n\n\n\n<li><strong>S\u00f3ng h\u00e0i v\u00e0 B\u1ea3o v\u1ec7 l\u1ed7i<\/strong>:M\u1ed9t s\u1ed1 nh\u00f3m vect\u01a1 gi\u00fap gi\u1ea3m thi\u1ec3u s\u00f3ng h\u00e0i v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng c\u00f4 l\u1eadp l\u1ed7i.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vector_Group_Classification_Understanding_Clock_Notation\"><\/span>Ph\u00e2n lo\u1ea1i nh\u00f3m vect\u01a1: Hi\u1ec3u v\u1ec1 k\u00fd hi\u1ec7u \u0111\u1ed3ng h\u1ed3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m vect\u01a1 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng k\u00fd hi\u1ec7u \u0111\u1ed3ng h\u1ed3, trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cu\u1ed9n d\u00e2y s\u01a1 c\u1ea5p (HV) \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh \u1edf v\u1ecb tr\u00ed 12 gi\u1edd.<\/li>\n\n\n\n<li>Cu\u1ed9n d\u00e2y th\u1ee9 c\u1ea5p (LV) \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb d\u1ef1a tr\u00ean \u0111\u1ed9 l\u1ec7ch pha c\u1ee7a n\u00f3 so v\u1edbi cu\u1ed9n d\u00e2y s\u01a1 c\u1ea5p.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, trong Dyn11, \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y th\u1ee9 c\u1ea5p ch\u1eadm h\u01a1n \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y s\u01a1 c\u1ea5p 30\u00b0 (v\u1ecb tr\u00ed 11 gi\u1edd).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Transformer_Vector_Groups\"><\/span>Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p chung<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Dyn11 (Delta-Star, \u0110\u1ed9 tr\u1ec5 30\u00b0)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p ph\u00e2n ph\u1ed1i ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/li>\n\n\n\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p v\u00e0 th\u01b0\u01a1ng m\u1ea1i.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Dyn1 (Delta-Star, D\u1eabn 30\u00b0)<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u00cdt ph\u1ed5 bi\u1ebfn h\u01a1n, nh\u01b0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng chuy\u00ean bi\u1ec7t.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Yyn0 (Sao-Sao, \u0110\u1ed9 l\u1ec7ch pha 0\u00b0)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Hi\u1ebfm khi s\u1eed d\u1ee5ng trong ph\u00e2n ph\u1ed1i \u0111i\u1ec7n, ch\u1ee7 y\u1ebfu d\u00f9ng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p th\u1ea5p.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Dd0 (Delta-Delta, \u0110\u1ed9 d\u1ecbch pha 0\u00b0)<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng l\u01b0\u1edbi truy\u1ec1n t\u1ea3i \u0111i\u1ec7n cao th\u1ebf.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Yd1 (Sao-Tam gi\u00e1c, D\u1eabn 30\u00b0)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ph\u00f9 h\u1ee3p v\u1edbi t\u1ea3i tr\u1ecdng \u0111\u1ed9ng c\u01a1 c\u1ee5 th\u1ec3 v\u00e0 quy tr\u00ecnh c\u00f4ng nghi\u1ec7p.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i nh\u00f3m vect\u01a1 m\u00e1y bi\u1ebfn \u00e1p ph\u1ee5c v\u1ee5 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau, khi\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn tr\u1edf n\u00ean quan tr\u1ecdng trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Delta_vs_Wye_Star_Transformer_Connections\"><\/span>K\u1ebft n\u1ed1i m\u00e1y bi\u1ebfn \u00e1p Delta so v\u1edbi Wye (Star)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c cu\u1ed9n d\u00e2y c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i theo m\u1ed9t trong hai c\u00e1ch <a href=\"https:\/\/www.mingchele.com\/vi\/blog\/industry-knowledge\/delta-vs-wye\/\">C\u1ea5u h\u00ecnh Delta (\u0394) ho\u1eb7c Wye (Y)<\/a>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>K\u1ebft n\u1ed1i Delta (\u0394)<\/strong>:\n<ul class=\"wp-block-list\">\n<li>C\u00e1c cu\u1ed9n d\u00e2y t\u1ea1o th\u00e0nh m\u1ed9t v\u00f2ng kh\u00e9p k\u00edn (h\u00ecnh tam gi\u00e1c).<\/li>\n\n\n\n<li>Kh\u00f4ng c\u00f3 \u0111i\u1ec3m trung t\u00ednh, ph\u00f9 h\u1ee3p cho vi\u1ec7c truy\u1ec1n t\u1ea3i \u0111i\u1ec7n \u00e1p cao.<\/li>\n\n\n\n<li>Cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i t\u1ed1t h\u01a1n \u0111\u1ed1i v\u1edbi t\u1ea3i kh\u00f4ng c\u00e2n b\u1eb1ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>K\u1ebft n\u1ed1i Wye (Y)<\/strong>:\n<ul class=\"wp-block-list\">\n<li>C\u00e1c cu\u1ed9n d\u00e2y \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t \u0111i\u1ec3m trung t\u00ednh chung.<\/li>\n\n\n\n<li>Cung c\u1ea5p c\u1ea3 \u0111i\u1ec7n \u00e1p pha v\u00e0 \u0111i\u1ec7n \u00e1p d\u00e2y.<\/li>\n\n\n\n<li>Ph\u1ed5 bi\u1ebfn trong m\u00e1y bi\u1ebfn \u00e1p ph\u00e2n ph\u1ed1i cho t\u1ea3i d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_Vector_Group_Affect_Transformer_Phase\"><\/span>Nh\u00f3m vect\u01a1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn pha c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 l\u1ec7ch pha gi\u1eefa m\u1eb7t ch\u00ednh v\u00e0 m\u1eb7t ph\u1ee5 ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ki\u1ec3u k\u1ebft n\u1ed1i (Delta ho\u1eb7c Wye)<\/li>\n\n\n\n<li>K\u00fd hi\u1ec7u \u0111\u1ed3ng h\u1ed3 (\u0111\u1ed9 l\u1ec7ch pha theo b\u1ed9i s\u1ed1 c\u1ee7a 30\u00b0)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u00e1y bi\u1ebfn \u00e1p Dyn11 c\u00f3 \u0111\u1ed9 l\u1ec7ch pha 30\u00b0, trong khi m\u00e1y bi\u1ebfn \u00e1p Yyn0 c\u00f3 \u0111\u1ed9 l\u1ec7ch pha 0\u00b0.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Identify_a_Transformer_Vector_Group\"><\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh nh\u00f3m vect\u01a1 c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p, h\u00e3y l\u00e0m theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Th\u00f4ng tin tr\u00ean nh\u00e3n m\u00e1y bi\u1ebfn \u00e1p: Nh\u00f3m vect\u01a1 \u0111\u01b0\u1ee3c in tr\u00ean nh\u00e3n m\u00e1y bi\u1ebfn \u00e1p.<\/li>\n\n\n\n<li>\u0110o g\u00f3c pha: S\u1eed d\u1ee5ng m\u00e1y ph\u00e2n t\u00edch pha \u0111\u1ec3 ki\u1ec3m tra m\u1ed1i quan h\u1ec7 pha \u0111i\u1ec7n \u00e1p.<\/li>\n\n\n\n<li>Ki\u1ec3m tra m\u00e1y bi\u1ebfn \u00e1p: \u00c1p d\u1ee5ng \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c k\u1ebft n\u1ed1i cu\u1ed9n d\u00e2y v\u00e0 \u0111\u1ed9 l\u1ec7ch pha.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Choosing_the_Right_Transformer_Vector_Group\"><\/span>Ch\u1ecdn \u0111\u00fang nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn nh\u00f3m vect\u01a1 ph\u00f9 h\u1ee3p cho m\u00e1y bi\u1ebfn \u00e1p ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ed9 d\u1ecbch pha<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c m\u00e1y bi\u1ebfn \u00e1p hi\u1ec7n c\u00f3 (\u0111\u1ec3 v\u1eadn h\u00e0nh song song)<\/li>\n\n\n\n<li>Lo\u1ea1i t\u1ea3i (\u0111\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p, m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i ho\u1eb7c h\u1ec7 th\u1ed1ng truy\u1ec1n t\u1ea3i)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practical_Applications_of_Vector_Groups\"><\/span>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a nh\u00f3m vect\u01a1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Nh\u00f3m Vector<\/strong><\/td><td><strong>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/td><\/tr><tr><td>Dyn11<\/td><td>M\u00e1y bi\u1ebfn \u00e1p ph\u00e2n ph\u1ed1i (th\u01b0\u1eddng d\u00f9ng cho ti\u1ec7n \u00edch)<\/td><\/tr><tr><td>\u01100<\/td><td>M\u1ea1ng l\u01b0\u1edbi c\u00f4ng nghi\u1ec7p c\u00f3 t\u1ea3i s\u00f3ng h\u00e0i cao<\/td><\/tr><tr><td>Yyn0<\/td><td>\u1ee8ng d\u1ee5ng \u0111i\u1ec7n \u00e1p th\u1ea5p quy m\u00f4 nh\u1ecf<\/td><\/tr><tr><td>Yd1<\/td><td>H\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ea7n chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n \u00e1p<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Transformer_Vector_Group_Conclusion\"><\/span>Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p: K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m vect\u01a1 m\u00e1y bi\u1ebfn \u00e1p \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 pha v\u00e0 lo\u1ea1i k\u1ebft n\u1ed1i.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i nh\u00f3m vect\u01a1, c\u1ea5u h\u00ecnh Delta so v\u1edbi Wye v\u00e0 \u0111\u1ed9 d\u1ecbch pha \u0111\u1ea3m b\u1ea3o l\u1ef1a ch\u1ecdn v\u00e0 hi\u1ec7u su\u1ea5t m\u00e1y bi\u1ebfn \u00e1p t\u1ed1i \u01b0u.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Ngu\u1ed3n b\u00e0i vi\u1ebft<\/summary>\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.se.com\/sa\/en\/faqs\/FA338393\/\">Nh\u00f3m vect\u01a1 \u0111\u1ed1i v\u1edbi m\u00e1y bi\u1ebfn \u00e1p c\u00f3 ngh\u0129a l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/electrical-engineering-portal.com\/understanding-vector-group-transformer-1\">Hi\u1ec3u v\u1ec1 nh\u00f3m vect\u01a1 c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/metapowersolutions.com\/what-is-a-transformer-vector-group\/\">Nh\u00f3m vect\u01a1 bi\u1ebfn \u00e1p l\u00e0 g\u00ec?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.prasunbarua.com\/2024\/03\/what-is-vector-group-of-transformer.html\">Nh\u00f3m vect\u01a1 c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p l\u00e0 g\u00ec?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/yasirarafin.com\/how-to-select-transformer-vector-group\/\">C\u00e1ch ch\u1ecdn nh\u00f3m vector bi\u1ebfn \u00e1p<\/a><\/li>\n<\/ol>\n<\/details>","protected":false},"excerpt":{"rendered":"<p>A transformer vector group defines the phase difference and winding configuration between a transformer\u2019s primary<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":2775,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-2755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-transformer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Transformer Vector Group: Importance, Selection, and Use<\/title>\n<meta name=\"description\" content=\"Transformer vector groups determine phase shifts and winding connections. 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