{"id":22682,"date":"2019-08-20T03:20:55","date_gmt":"2019-08-19T20:20:55","guid":{"rendered":"https:\/\/banbientan.com\/?p=22682"},"modified":"2019-08-20T03:20:55","modified_gmt":"2019-08-19T20:20:55","slug":"cach-khac-phuc-loi-bien-tan-delta-vfd-b","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=22682","title":{"rendered":"C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i bi\u1ebfn t\u1ea7n Delta VFD-B"},"content":{"rendered":"

H\u01b0\u1edbng D\u1eabn Kh\u1eafc Ph\u1ee5c Bi\u1ebfn T\u1ea7n Delta B\u00e1o L\u1ed7i<\/h4>\n\n\n\n\n
<\/td>\n<\/tr>\n
\n
\n\n\n\n
Bi\u1ebfn t\u1ea7n Delta\u00a0<\/span><\/b>\u0111\u00e3 n\u00e2ng c\u1ea5p b\u1ea3o v\u1ec7 c\u1ee7a bi\u1ebfn t\u1ea7n, do v\u1eady kh\u1ea3 n\u0103ng\u00a0<\/span>ph\u00e1t hi\u1ec7n l\u1ed7i c\u1ee7a Bi\u1ebfn t\u1ea7n Delta \u0111\u1ec3\u00a0<\/b><\/span>b\u1ea3o v\u1ec7 M\u00f4 t\u01a1 r\u1ea5t t\u1ed1t<\/b>. Ng\u0103n ng\u1eeba \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng n\u1ed5 bi\u1ebfn t\u1ea7n v\u00e0 ch\u00e1y \u0111\u1ed9ng c\u01a1 do v\u00e2y khi\u00a0Bi\u1ebfn t\u1ea7n Delta\u00a0<\/b>b\u00e1o l\u1ed7i\u00a0<\/span><\/span>
\nQu\u00fd kh\u00e1ch h\u00e0ng n\u00ean ki\u1ec3m tra l\u1ea1i m\u00e3 l\u1ed7i t\u00ecm c\u00e1ch kh\u1eafc ph\u1ee5c ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec1 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 mi\u1ebfn ph\u00ed 24\/24
\nsau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u00e3 l\u1ed7i th\u01b0\u1eddng g\u1eb7p r\u1ea5t nguy hi\u1ec3m.
\nL\u1ed7i GFF (L\u1ed7i ch\u1ea1m \u0111\u1ea5t):\u00a0<\/b><\/span>
\nNguy\u00ean nh\u00e2n<\/u>:<\/i>\u00a0<\/span>Do ch\u1ea1m ch\u1eadp 1 trong 3 pha ng\u00f5 ra bi\u1ebfn t\u1ea7n v\u1edbi ti\u1ebfp \u0111\u1ecba (\u0111\u1ea5t), ho\u1eb7c c\u00f3 th\u1ec3 do 1 trong 3 pha c\u1ee7a\u00a0<\/span>
\ncu\u1ed9n d\u00e2y Stato ch\u1ea1m v\u00f5.<\/span>
\nkh\u1eafc ph\u1ee5c:<\/span><\/i><\/u>\u00a0Th\u00e1o M\u00f4 t\u01a1 ra kh\u1ecf ng\u00f5 ra U, V, W\u00a0Bi\u1ebfn t\u1ea7n Delta<\/b>, b\u1eadt CB ki\u1ec3m tra c\u00f2n b\u00e1o l\u1ed7i hay kh\u00f4ng n\u1ebfu bi\u1ebfn<\/span><\/span>
\nt\u1ea7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng th\u00ec ki\u1ec3m tra 1 trong 3 pha m\u00f4 t\u01a1 \u0111\u00e3 b\u1ecb ch\u1ea1m v\u00f5, ho\u1eb7c 1 trong ba pha b\u1ecb r\u00f2 \u0111i\u1ec7n xu\u1ed1ng\u00a0<\/span><\/span>
\nti\u1ebfp \u0111\u1ecba.<\/span><\/span>
\nL\u00f5i OC (L\u1ed7i qu\u00e1 d\u00f2ng):\u00a0<\/b><\/span>
\nNguy\u00ean nh\u00e2n:<\/u><\/i><\/span>
\n1> Bi\u1ebfn t\u1ea7n b\u1ecb ch\u00e1y c\u00f4ng su\u1ea5t IGBT d\u1eabn t\u1edbi ng\u1eafn m\u1ea1ch ng\u00f5 ra\u00a0Bi\u1ebfn t\u1ea7n Delta b\u00e1o l\u1ed7i OC<\/b><\/span>
\n2> B\u1ecb ng\u1eafn m\u1ea1ch ng\u00f5 ra m\u00f4 t\u01a1 do 2 trong 3 pha c\u1ee7a M\u00f4 t\u01a1 ch\u1ea1m v\u00e0o nhau, ho\u1eb7c 1 trong 3 pha b\u1ecb r\u00f2 \u0111i\u1ec7n xu\u1ed1ng ti\u1ebfp\u00a0<\/span>
\n\u0111\u1ecba<\/span>
\nkh\u1eafc ph\u1ee5c:<\/i><\/u><\/span>
\nTh\u00e1o M\u00f4 t\u01a1 ra kh\u1ecfi bi\u1ebfn t\u1ea7n n\u1ebfu Bi\u1ebfn t\u1ea7n c\u00f2n b\u00e1o l\u1ed7 th\u00ec kh\u1ed1i c\u00f4ng su\u1ea5t IGBT b\u1ecb ch\u00e1y<\/span>
\nKi\u1ec3m tra k\u1ef9 3 pha bi\u1ebfn t\u1ea7n xem c\u00f3 b\u1ecb ch\u1ea1m ch\u1eadp, ho\u1eb7c 1 trong 3 pha ch\u1ea1m v\u1edbi ti\u1ebfp \u0111\u1ecba<\/span>
\nL\u1ed7i OL (L\u1ed7i qu\u00e1 t\u1ea3i)\u00a0<\/b><\/span>
\nNguy\u00ean nh\u00e2n:<\/u><\/i><\/span>
\nD\u00f2ng \u0111i\u1ec7n cung c\u1ea5p cho M\u00f4 t\u01a1 v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng d\u00f2ng \u0111i\u1ec7n ng\u00f5 ra bi\u1ebfn t\u1ea7n.<\/span>
\nKh\u1eafc ph\u1ee5c<\/u><\/i><\/span>
\nki\u1ec3m tra h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 b\u1ecb k\u1eb9t t\u1ea3i<\/span>
\nC\u00f4ng su\u1ea5t bi\u1ebfn t\u1ea7n c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00f4ng su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1, c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng t\u1ea3i.<\/span>
\nDo v\u1eady tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t bi\u1ebfn t\u1ea7n Qu\u00fd kh\u00e1ch h\u00e0ng n\u00ean n\u1eafm v\u1ee9ng lo\u1ea1i t\u1ea3i \u0111\u1ec3 ch\u1ecdn d\u00f2ng bi\u1ebfn t\u1ea7n.<\/span>
\nL\u1ed7i OV (L\u1ed7i qu\u00e1 \u00e1p Bus DC)<\/b><\/span>
\nNguy\u00ean nh\u00e2n:<\/i><\/u><\/span>
\nKhi \u0110\u1ed9ng c\u01a1 mang t\u1ea3i c\u00f3 \u00a0qu\u00e1n t\u00ednh l\u1edbn m\u00f4 t\u01a1 bi\u1ebfn th\u00e0nh m\u00e1y ph\u00e1t h\u1ed3i v\u1ec1 bi\u1ebfn t\u1ea7n ho\u1eb7c th\u1eddi gian t\u0103ng\/ gi\u1ea3m t\u1ed1c<\/span>
\nqu\u00e1 ng\u1eafn d\u1eabn \u0111\u1ebfn \u0111i\u1ec7n \u00e1p t\u1ea1i Bus DC c\u1ee7a bi\u1ebfn t\u1ea7n d\u00e2ng cao so v\u1edbi \u0111\u1ecbnh m\u1ee9c–>\u00a0Bi\u1ebfn t\u1ea7n b\u00e1o l\u1ed7i.<\/b><\/span>
\nKh\u1eafc ph\u1ee5c:<\/u><\/i><\/span>
\nV\u1edbi t\u1ea3i kh\u00f4ng c\u1ea7n d\u1eebng g\u1ea5p th\u00ec c\u00f3 th\u1ec3 k\u00e9o d\u00e0i th\u1eddi gian t\u0103ng gi\u1ea3m t\u1ed1c (Gi\u1ea3 s\u1eed m\u1eb7c \u0111\u1ecbnh 10S th\u00ec t\u0103ng l\u00ean 30, 40S…)<\/span>
\nV\u1edbi t\u1ea3i c\u1ea7n t\u0103ng t\u1ed1c nhanh, d\u1eebng g\u1ea5p, m\u00f4 t\u01a1 c\u00f3 qu\u00e1n t\u00ednh c\u1ea7n g\u1eafn th\u00eam \u0111i\u1ec7n tr\u1edf x\u1ea3 (th\u00f4ng s\u1ed1 \u0111i\u1ec7n tr\u1edf x\u1ea3 nh\u01b0 m\u1eb7c\u00a0<\/span>
\n\u0111\u1ecbnh h\u00e3ng bi\u1ebfn t\u1ea7n)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

H\u01b0\u1edbng D\u1eabn Kh\u1eafc Ph\u1ee5c Bi\u1ebfn T\u1ea7n Delta B\u00e1o L\u1ed7i Bi\u1ebfn t\u1ea7n Delta\u00a0\u0111\u00e3 n\u00e2ng c\u1ea5p b\u1ea3o v\u1ec7 c\u1ee7a bi\u1ebfn t\u1ea7n, do v\u1eady kh\u1ea3 n\u0103ng\u00a0ph\u00e1t hi\u1ec7n l\u1ed7i c\u1ee7a Bi\u1ebfn t\u1ea7n Delta \u0111\u1ec3\u00a0b\u1ea3o v\u1ec7 M\u00f4 t\u01a1 r\u1ea5t t\u1ed1t. Ng\u0103n ng\u1eeba \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng n\u1ed5 bi\u1ebfn t\u1ea7n v\u00e0 ch\u00e1y \u0111\u1ed9ng c\u01a1 do v\u00e2y khi\u00a0Bi\u1ebfn t\u1ea7n Delta\u00a0b\u00e1o l\u1ed7i\u00a0 Qu\u00fd kh\u00e1ch […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[13664],"class_list":["post-22682","post","type-post","status-publish","format-standard","hentry","category-tin-t-dng-hoa","tag-loi-bien-tan-delta"],"_links":{"self":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/22682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22682"}],"version-history":[{"count":0,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/22682\/revisions"}],"wp:attachment":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}