{"id":3330,"date":"2022-08-22T04:02:07","date_gmt":"2022-08-22T04:02:07","guid":{"rendered":"https:\/\/toancau.vn\/?p=3330"},"modified":"2025-04-17T09:36:56","modified_gmt":"2025-04-17T09:36:56","slug":"switchboard","status":"publish","type":"post","link":"https:\/\/toancau.vn\/en\/blog\/switchboard.html","title":{"rendered":"Switchboard"},"content":{"rendered":"<p><span style=\"color: #000000;\"><span style=\"color: #0000ff;\"><strong>Switchboard (MDB,EMDB,DB,ATS,MTS)<\/strong><\/span> l\u00e0 m\u1ed9t trong nh\u1eefng h\u1ec7 th\u1ed1ng quan tr\u1ecdng nh\u1ea5t trong h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i.\u00a0C\u00f3 tr\u00e1ch nhi\u1ec7m ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng, ki\u1ec3m so\u00e1t vi\u1ec7c cung c\u1ea5p v\u00e0 nh\u1eadn \u0111i\u1ec7n t\u1eeb h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, m\u00e1y ph\u00e1t, m\u00e1y bi\u1ebfn \u00e1p tr\u01b0\u1edbc khi ph\u00e2n ph\u1ed1i cho c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 nhu c\u1ea7u s\u1eed d\u1ee5ng \u0111i\u1ec7n.<\/span><\/p>\n<p><span style=\"color: #000000;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-3333 aligncenter\" src=\"https:\/\/toancau.vn\/wp-content\/uploads\/2022\/08\/959645-mdbatsswitchboard1.jpg\" alt=\"\" width=\"375\" height=\"310\" srcset=\"https:\/\/toancau.vn\/wp-content\/uploads\/2022\/08\/959645-mdbatsswitchboard1.jpg 290w, https:\/\/toancau.vn\/wp-content\/uploads\/2022\/08\/959645-mdbatsswitchboard1-15x12.jpg 15w\" sizes=\"(max-width: 375px) 100vw, 375px\" \/><\/span><\/p>\n<div id=\"portfolio-single-wrap\">\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">Table of Contents<\/p><ul class=\"toc_list\"><li><a href=\"#Cac_thanh_phan_chinh_cua_Switchboard\"><span class=\"toc_number toc_depth_1\">1<\/span> C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a Switchboard<\/a><ul><li><a href=\"#Vo_tu\"><span class=\"toc_number toc_depth_2\">1.1<\/span> V\u1ecf t\u1ee7<\/a><\/li><li><a href=\"#Loi_dan_dien\"><span class=\"toc_number toc_depth_2\">1.2<\/span> L\u00f5i d\u1eabn \u0111i\u1ec7n<\/a><\/li><li><a href=\"#Meo_su_dung_loi_dan_dien\"><span class=\"toc_number toc_depth_2\">1.3<\/span> M\u1eb9o s\u1eed d\u1ee5ng l\u00f5i d\u1eabn \u0111i\u1ec7n<\/a><\/li><li><a href=\"#Bo_ngat_mach_cho_Switchboard\"><span class=\"toc_number toc_depth_2\">1.4<\/span> B\u1ed9 ng\u1eaft m\u1ea1ch cho Switchboard<\/a><\/li><li><a href=\"#Dong_ho_do_Switchboard\"><span class=\"toc_number toc_depth_2\">1.5<\/span> \u0110\u1ed3ng h\u1ed3 \u0111o Switchboard<\/a><\/li><li><a href=\"#Phu_kien_cho_tong_dai\"><span class=\"toc_number toc_depth_2\">1.6<\/span> Ph\u1ee5 ki\u1ec7n cho t\u1ed5ng \u0111\u00e0i<\/a><ul><li><a href=\"#1Bien_ap_hien_tai_CT_cho_Switchboard\"><span class=\"toc_number toc_depth_3\">1.6.1<\/span> 1.\u00a0Bi\u1ebfn \u00e1p hi\u1ec7n t\u1ea1i (CT) cho Switchboard. <\/a><\/li><li><a href=\"#2Bo_chon_Switch_cho_Switchboard\"><span class=\"toc_number toc_depth_3\">1.6.2<\/span> 2.\u00a0B\u1ed9 ch\u1ecdn Switch cho Switchboard.<\/a><\/li><li><a href=\"#3Plot_Lamp_cho_Switchboard\"><span class=\"toc_number toc_depth_3\">1.6.3<\/span> 3.\u00a0Plot Lamp cho Switchboard.<\/a><\/li><li><a href=\"#4Cau_chi_cho_Switchboard\"><span class=\"toc_number toc_depth_3\">1.6.4<\/span> 4.\u00a0C\u1ea7u ch\u00ec cho Switchboard. <\/a><\/li><li><a href=\"#5Cach_dien_loi_dan_cho_Switchboard\"><span class=\"toc_number toc_depth_3\">1.6.5<\/span> 5.\u00a0C\u00e1ch \u0111i\u1ec7n l\u00f5i d\u1eabn cho Switchboard.<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/div>\n<h2><span id=\"Cac_thanh_phan_chinh_cua_Switchboard\"><span style=\"color: #000000;\"><strong><span class=\"\">C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a Switchboard<\/span><\/strong><\/span><\/span><\/h2>\n<h3><span id=\"Vo_tu\"><span style=\"color: #000000;\"><strong>V\u1ecf <\/strong><strong>t\u1ee7<\/strong><\/span><\/span><\/h3>\n<p><span style=\"color: #000000;\">N\u00f3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng t\u1ea5m kim lo\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p nh\u01b0 m\u1ed9t t\u1ee7. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u01b0\u1ee3c m\u1edf \u1edf ph\u00eda tr\u01b0\u1edbc ho\u1eb7c m\u1edf \u1edf t\u1ea5t c\u1ea3 c\u00e1c b\u00ean t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf. C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a n\u00f3 l\u00e0:<\/span><\/p>\n<ol>\n<li><strong><span style=\"color: #000000;\">C\u01a1 t\u00ednh. H\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc b\u00ean ngo\u00e0i \u0111\u1ec3 s\u1eed d\u1ee5ng b\u00ecnh th\u01b0\u1eddng v\u00e0 kh\u00f4ng b\u00ecnh th\u01b0\u1eddng.<\/span><\/strong><\/li>\n<li><strong><span style=\"color: #000000;\">T\u00ednh ch\u1ea5t nhi\u1ec7t. C\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i nhi\u1ec7t t\u1eeb m\u00f4i tr\u01b0\u1eddng, l\u1ed7i h\u1ec7 th\u1ed1ng v\u00e0 h\u1ed3 quang t\u1eeb ng\u1eafn m\u1ea1ch.<\/span><\/strong><\/li>\n<li><strong><span style=\"color: #000000;\">T\u00ednh ch\u1ea5t ch\u1ed1ng \u0103n m\u00f2n. Ch\u1ed1ng \u1ea9m v\u00e0 \u0103n m\u00f2n h\u00f3a h\u1ecdc. T\u1ee7 c\u0169ng ng\u0103n ng\u1eeba m\u1ecdi t\u00e1c h\u1ea1i c\u00f3 th\u1ec3 x\u1ea3y ra<\/span><\/strong><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">a. \u0110\u1ec1 ph\u00f2ng ng\u01b0\u1eddi \u1edf g\u1ea7n t\u1ed5ng \u0111\u00e0i ch\u1ea1m v\u00e0o c\u00e1c b\u1ed9 ph\u1eadn b\u1ecb h\u1edf.<\/span><\/p>\n<p><span style=\"color: #000000;\">b. B\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb b\u00ean trong t\u1ee7 kh\u1ecfi nh\u1eefng th\u1ee9 b\u00ean ngo\u00e0i nh\u01b0 n\u01b0\u1edbc, v\u1eadt r\u1eafn, b\u00f2 s\u00e1t, &#8230;<\/span><\/p>\n<p><span style=\"color: #000000;\">c. Ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng n\u1eb7ng do h\u1ed3 quang khi\u1ebfn thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 r\u01a1i v\u1ee1.<\/span><\/p>\n<h3><span id=\"Loi_dan_dien\"><span style=\"color: #000000;\"><strong>L\u00f5i d\u1eabn \u0111i\u1ec7n<\/strong><\/span><\/span><\/h3>\n<p><span style=\"color: #000000;\">D\u00e2y d\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng \u0111\u1ed3ng v\u00e0 nh\u00f4m.\u00a0D\u1ea1ng thanh c\u00e1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 d\u1ea1ng ph\u1eb3ng v\u1edbi m\u1eb7t c\u1eaft ngang h\u00ecnh ch\u1eef nh\u1eadt v\u00ec n\u00f3 d\u1ec5 l\u1eafp \u0111\u1eb7t v\u00e0 h\u1ea1 nhi\u1ec7t hi\u1ec7u qu\u1ea3.\u00a0N\u00f3 \u0111\u01b0\u1ee3c chia th\u00e0nh 2 lo\u1ea1i.<\/span><\/p>\n<ol>\n<li><strong><span style=\"color: #000000;\">L\u00f5i d\u1eabn tr\u1ea7n<\/span><\/strong><\/li>\n<li><strong><span style=\"color: #000000;\">L\u00f5i d\u1eabn ph\u1ee7<\/span><\/strong><\/li>\n<\/ol>\n<h3><span id=\"Meo_su_dung_loi_dan_dien\"><span style=\"color: #000000;\"><strong>M\u1eb9o s\u1eed d\u1ee5ng l\u00f5i d\u1eabn \u0111i\u1ec7n<\/strong><\/span><\/span><\/h3>\n<ol>\n<li><span style=\"color: #000000;\">L\u00f5i d\u1eabn n\u00ean \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u1eb3ng \u0111\u1ee9ng \u0111\u1ec3 n\u00f3 h\u1ea1 nhi\u1ec7t t\u1ed1t.<\/span><\/li>\n<li><span style=\"color: #000000;\">L\u00f5i d\u1eabn ph\u1eb3ng n\u00ean \u0111\u1eb7t song song kh\u00f4ng qu\u00e1 4 thanh. N\u1ebfu v\u01b0\u1ee3t qu\u00e1, c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1edbi Hi\u1ec7u \u1ee9ng B\u1ec1 m\u1eb7t.<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0110\u1ed1i v\u1edbi l\u00f5i d\u1eabn c\u00f3 s\u01a1n ph\u1ee7, m\u00e0u s\u01a1n ph\u1ee7 n\u00ean c\u00f3 h\u1ec7 s\u1ed1 l\u00e0m m\u00e1t kho\u1ea3ng 0,9.<\/span><\/li>\n<li><span style=\"color: #000000;\">Thanh c\u00e1i b\u1ecdc c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n cao h\u01a1n thanh c\u00e1i tr\u1ea7n.<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0110\u1ecf, V\u00e0ng, Xanh lam cho pha R, Y, B \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh t\u01b0\u01a1ng \u1ee9ng.<\/span><\/li>\n<li><span style=\"color: #000000;\">B\u1ed1 tr\u00ed pha trong t\u1ee7 \u0111i\u1ec7n (R, Y, B) n\u00ean b\u1ed1 tr\u00ed t\u1eeb tr\u01b0\u1edbc ra sau t\u1ee7, t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi ho\u1eb7c t\u1eeb tr\u00e1i qua ph\u1ea3i.<\/span><\/li>\n<li><span style=\"color: #000000;\">Ch\u1ec9 cho ph\u00e9p b\u1ed1 tr\u00ed pha kh\u00e1c khi k\u1ebft n\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng hi\u1ec7n c\u00f3. Tuy nhi\u00ean, d\u1ea5u hi\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng.<\/span><\/li>\n<\/ol>\n<h3><span id=\"Bo_ngat_mach_cho_Switchboard\"><span style=\"color: #000000;\"><strong>B\u1ed9 ng\u1eaft m\u1ea1ch cho Switchboard<\/strong><\/span><\/span><\/h3>\n<p><span style=\"color: #000000;\">\u0110\u1ed1i v\u1edbi t\u1ee7 \u0111i\u1ec7n h\u1ea1 th\u1ebf, c\u00f3 2 lo\u1ea1i thi\u1ebft b\u1ecb c\u1eaft \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u0111\u00f3 l\u00e0 M\u00e1y c\u1eaft kh\u00f4ng kh\u00ed v\u00e0 <strong>aptomat kh\u1ed1i<\/strong>, th\u01b0\u1eddng c\u00f3\u00a0<strong>d\u00f2ng c\u1eaft<\/strong>\u00a0ng\u1eafn m\u1ea1ch l\u1edbn (c\u00f3 th\u1ec3 l\u00ean t\u1edbi 150kA). CB kh\u00ed \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m c\u1ea7u dao ch\u00ednh trong c\u00e1c m\u1ea1ch d\u00f2ng \u0111i\u1ec7n cao. V\u1ecf khu\u00f4n CB (MCCB) d\u00f9ng cho m\u1ea1ch nh\u00e1nh ho\u1eb7c d\u00f9ng l\u00e0m c\u1ea7u dao trong t\u1ee7 \u0111i\u1ec7n nh\u1ecf.<\/span><\/p>\n<p><span style=\"color: #000000;\">L\u1ef1a ch\u1ecdn c\u1ea7u dao n\u00ean xem x\u00e9t chi\u1ec1u r\u1ed9ng, chi\u1ec1u d\u00e0i, chi\u1ec1u cao c\u1ee7a n\u00f3 \u0111\u1ec3 l\u1eafp v\u00e0o bo m\u1ea1ch cho h\u1ee3p l\u00fd, d\u00f2ng IC k\u1ec3 c\u1ea3 ph\u1ed1i h\u1ee3p.<\/span><\/p>\n<h3><span id=\"Dong_ho_do_Switchboard\"><span style=\"color: #000000;\"><strong>\u0110\u1ed3ng h\u1ed3 \u0111o Switchboard<\/strong><\/span><\/span><\/h3>\n<p><span style=\"color: #000000;\">Thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u1ee7 \u0111i\u1ec7n l\u00e0 v\u00f4n k\u1ebf v\u00e0 ampe k\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi B\u1ed9 chuy\u1ec3n m\u1ea1ch ch\u1ecdn \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n trong m\u1ed7i pha.\u00a0\u0110\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p c\u1ee7a v\u00f4n k\u1ebf n\u1eb1m trong kho\u1ea3ng t\u1eeb 0-500V.\u00a0\u0110\u00e1nh gi\u00e1 hi\u1ec7n t\u1ea1i c\u1ee7a ampe k\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ef7 l\u1ec7 c\u1ee7a bi\u1ebfn d\u00f2ng, ch\u1eb3ng h\u1ea1n nh\u01b0 100 \/ 5A.<\/span><\/p>\n<p><span style=\"color: #000000;\">\u0110\u1ed1i v\u1edbi c\u00e1c t\u1ed5ng \u0111\u00e0i l\u1edbn, c\u00f3 th\u1ec3 c\u00f3 PF Meter, Watt Meter ho\u1eb7c Var Meter t\u00f9y theo thi\u1ebft k\u1ebf bo m\u1ea1ch.\u00a0M\u1ed9t s\u1ed1 bo m\u1ea1ch c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c trang b\u1ecb B\u1ed9 \u0111i\u1ec1u khi\u1ec3n PF \u0111\u1ec3 ki\u1ec3m so\u00e1t h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t trong m\u1ea1ch.<\/span><\/p>\n<h3><span id=\"Phu_kien_cho_tong_dai\"><span style=\"color: #000000;\"><strong>Ph\u1ee5 ki\u1ec7n cho t\u1ed5ng \u0111\u00e0i<\/strong><\/span><\/span><\/h3>\n<p><span style=\"color: #000000;\">C\u00f3 m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n trong Switchboard nh\u01b0:<\/span><\/p>\n<h4><span id=\"1Bien_ap_hien_tai_CT_cho_Switchboard\"><span style=\"color: #000000;\">1.\u00a0<strong>Bi\u1ebfn \u00e1p hi\u1ec7n t\u1ea1i (CT) cho Switchboard. <\/strong><\/span><\/span><\/h4>\n<p><span style=\"color: #000000;\"><span class=\"\">Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o d\u00f2ng \u0111i\u1ec7n b\u1eb1ng c\u00e1ch k\u1ebft n\u1ed1i v\u1edbi ampe k\u1ebf CT.\u00a0<\/span>M\u00e1y \u0111o CT s\u1eed d\u1ee5ng tr\u00ean th\u1ecb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c chia l\u00e0m 2 nh\u00f3m l\u00e0 t\u1ef7 s\u1ed1 1 v\u00e0 t\u1ef7 s\u1ed1 5. \u200b\u200bT\u1ef7 s\u1ed1 5 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u1ed5ng \u0111\u00e0i nh\u01b0 50\/5, 100\/5, 300\/5,\u2026 Th\u00f4ng th\u01b0\u1eddng CT s\u1ebd \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean k\u00edch th\u01b0\u1edbc c\u1ee7a c\u1ea7u dao ch\u00ednh nh\u01b0ng ph\u1ea3i cao h\u01a1n \u0111\u1ecbnh m\u1ee9c c\u1ee7a c\u1ea7u dao ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea7u dao ch\u00ednh 100A ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi CT l\u00e0 100 \/ 5A.\u00a0Ch\u00fa \u00fd khi s\u1eed d\u1ee5ng CT l\u00e0 kh\u00f4ng \u0111\u1ec3 h\u1edf m\u1ea1ch th\u1ee9 c\u1ea5p c\u1ee7a CT v\u00ec n\u00f3 g\u00e2y ra \u0111i\u1ec7n \u00e1p cao tr\u00ean cu\u1ed9n d\u00e2y v\u00e0 l\u00e0m ch\u00e1y CT.\u00a0N\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng CT, hai \u0111\u1ea7u cu\u1ed1i c\u1ee7a CT ph\u1ea3i \u0111\u01b0\u1ee3c \u0111o\u1ea3n m\u1ea1ch.<\/span><\/p>\n<h4><span id=\"2Bo_chon_Switch_cho_Switchboard\"><span style=\"color: #000000;\">2.\u00a0<strong>B\u1ed9 ch\u1ecdn Switch cho Switchboard.<\/strong><\/span><\/span><\/h4>\n<p><span style=\"color: #000000;\"><strong>\u00a0<\/strong>B\u1ed9 chuy\u1ec3n m\u1ea1ch ch\u1ecdn Ampe k\u1ebf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi Ampe k\u1ebf CT v\u00e0 B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 \u0111o d\u00f2ng \u0111i\u1ec7n trong t\u1ee7 \u0111i\u1ec7n.\u00a0C\u00f4ng t\u1eafc B\u1ed9 ch\u1ecdn V\u00f4n k\u1ebf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi V\u00f4n k\u1ebf b\u1ea3ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p c\u1ee7a t\u1ee7 \u0111i\u1ec7n.\u00a0\u0110\u1ec3 k\u1ebft n\u1ed1i m\u1ea1ch, ng\u01b0\u1eddi d\u00f9ng n\u00ean ki\u1ec3m tra s\u01a1 \u0111\u1ed3 \u0111i k\u00e8m v\u1edbi thi\u1ebft b\u1ecb.\u00a0V\u00ec m\u1ed7i th\u01b0\u01a1ng hi\u1ec7u c\u00f3 c\u00e1ch n\u1ed1i m\u1ea1ch kh\u00e1c nhau.<\/span><\/p>\n<h4><span id=\"3Plot_Lamp_cho_Switchboard\"><span style=\"color: #000000;\">3.\u00a0<strong>Plot Lamp cho Switchboard.<\/strong><\/span><\/span><\/h4>\n<p><span style=\"color: #000000;\"> L\u00e0 \u0111\u00e8n b\u00e1o tr\u1ea1ng th\u00e1i l\u00e0m vi\u1ec7c v\u00e0 th\u00f4ng b\u00e1o c\u00f3 \u0111i\u1ec7n c\u1ea5p cho t\u1ed5ng \u0111\u00e0i hay kh\u00f4ng.\u00a0\u0110\u00e8n Pilot c\u00f3 hai lo\u1ea1i \u0111\u00f3 l\u00e0.<\/span><\/p>\n<ol style=\"list-style-type: lower-roman;\">\n<li><span style=\"color: #000000;\">v\u1edbi m\u00e1y bi\u1ebfn th\u1ebf<\/span><\/li>\n<li><span style=\"color: #000000;\">kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn th\u1ebf<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Bi\u1ebfn th\u1ebf s\u1ebd gi\u1ea3m \u0111i\u1ec7n \u00e1p cho ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec7n \u00e1p c\u1ee7a \u0111\u00e8n, ch\u1eb3ng h\u1ea1n nh\u01b0 220 \/ 6.3V.<\/span><\/p>\n<h4><span id=\"4Cau_chi_cho_Switchboard\"><span style=\"color: #000000;\">4.\u00a0<strong>C\u1ea7u ch\u00ec cho Switchboard. <\/strong><\/span><\/span><\/h4>\n<p><span style=\"color: #000000;\">C\u1ea7u ch\u00ec l\u00e0 m\u1ed9t \u1ed1ng th\u1ee7y tinh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u1ea1ch c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u00e0 \u0111\u00e8n hoa ti\u00eau.<\/span><\/p>\n<h4><span id=\"5Cach_dien_loi_dan_cho_Switchboard\"><span style=\"color: #000000;\">5.\u00a0<strong>C\u00e1ch \u0111i\u1ec7n l\u00f5i d\u1eabn cho Switchboard.<\/strong><\/span><\/span><\/h4>\n<p><span style=\"color: #000000;\"> N\u00f3 l\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n cho thanh c\u00e1i. M\u1ed9t m\u1eb7t \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi t\u1ed5ng \u0111\u00e0i trong khi m\u1eb7t c\u00f2n l\u1ea1i s\u1ebd g\u1eafn thanh c\u00e1i. C\u00f3 nhi\u1ec1u lo\u1ea1i c\u00e1ch \u0111i\u1ec7n \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng lo\u1ea1i thanh c\u00e1i<\/span><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Switchboard (MDB,EMDB,DB,ATS,MTS) l\u00e0 m\u1ed9t trong nh\u1eefng h\u1ec7 th\u1ed1ng quan tr\u1ecdng nh\u1ea5t trong h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i.\u00a0C\u00f3 tr\u00e1ch nhi\u1ec7m ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng, ki\u1ec3m so\u00e1t vi\u1ec7c cung c\u1ea5p v\u00e0 nh\u1eadn \u0111i\u1ec7n t\u1eeb h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, m\u00e1y ph\u00e1t, m\u00e1y bi\u1ebfn \u00e1p tr\u01b0\u1edbc khi ph\u00e2n ph\u1ed1i cho c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 nhu c\u1ea7u s\u1eed d\u1ee5ng \u0111i\u1ec7n. N\u1ed9i dung [&hellip;]<\/p>","protected":false},"author":3,"featured_media":3333,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_lock_modified_date":false,"footnotes":""},"categories":[16,7],"tags":[],"class_list":["post-3330","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-tin-tuc-su-kien"],"acf":[],"_links":{"self":[{"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/posts\/3330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/comments?post=3330"}],"version-history":[{"count":3,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/posts\/3330\/revisions"}],"predecessor-version":[{"id":8500,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/posts\/3330\/revisions\/8500"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/media\/3333"}],"wp:attachment":[{"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/media?parent=3330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/categories?post=3330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/toancau.vn\/en\/wp-json\/wp\/v2\/tags?post=3330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}