{"id":4873,"date":"2010-08-24T16:21:27","date_gmt":"2010-08-24T09:21:27","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=266"},"modified":"2010-08-24T16:21:27","modified_gmt":"2010-08-24T09:21:27","slug":"uninterruptible-power-supply-ups","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/uninterruptible-power-supply-ups\/","title":{"rendered":"Uninterruptible power supply (UPS)"},"content":{"rendered":"<p class=\"style1\"><strong><em>Uninterruptible power supply<\/em><\/strong> (UPS)<\/p>\n<p class=\"style1\">L\u00e0 <em><strong>h\u1ec7  th\u1ed1ng ngu\u1ed3n cung c\u1ea5p li\u00ean t\u1ee5c<\/strong><\/em> hay \u0111\u01a1n gi\u1ea3n h\u01a1n l\u00e0 <em><strong>b\u1ed9 l\u01b0u tr\u1eef  \u0111i\u1ec7n d\u1ef1 ph\u00f2ng<\/strong><\/em> nh\u1eb1m l\u00e0m t\u0103ng \u0111\u1ed9 tin c\u1eady cung c\u1ea5p \u0111i\u1ec7n cho h\u1ec7 th\u1ed1ng<\/p>\n<p class=\"style1\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"M\u00f4 h\u00ecnh\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/UPS\/mohinh.jpg\" alt=\"M\u00f4 h\u00ecnh\" width=\"476\" height=\"252\" \/><\/p>\n<p class=\"style1\"><strong>1. Offline<\/strong><\/p>\n<ul class=\"style1\">\n<li><strong><em>V\u1edbi c\u00f4ng ngh\u1ec7 offline<\/em><\/strong>: \u1edf  tr\u1ea1ng th\u00e1i b\u00ecnh th\u01b0\u1eddng t\u1ea3i \u0111\u01b0\u1ee3c cung c\u1ea5p tr\u1ef1c ti\u1ebfp t\u1eeb l\u01b0\u1edbi \u0111i\u1ec7n, b\u00ecnh <a href=\"http:\/\/en.wikipedia.org\/wiki\/ACCU\">accu<\/a> hay  b\u1ed9 Inverter ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 ch\u1edd, khi ngu\u1ed3n v\u00e0o v\u01b0\u1ee3t kh\u1ecfi t\u1ea7m \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a  UPS, UPS l\u00fac \u0111\u00f3 chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 backup s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng b\u00ecnh accu. V\u00ec b\u00ecnh  accu v\u00e0 b\u1ed9 Inverter ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 ch\u1edd n\u00ean c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0  offline hay standby.<\/li>\n<li><strong><em>D\u00f2ng Offline<\/em><\/strong>: \u0111\u00e1p  \u1ee9ng y\u00eau c\u1ea7u c\u01a1 b\u1ea3n, t\u1ed1i thi\u1ec3u v\u1ec1 \u0111i\u1ec7n, th\u01b0\u1eddng c\u00f3 c\u00f4ng su\u1ea5t (CS) nh\u1ecf, c\u00f3 th\u1eddi  gian chuy\u1ec3n m\u1ea1ch gi\u1eefa c\u00e1c ch\u1ebf \u0111\u1ed9 l\u00e0 t\u1eeb 2-10ms, s\u00f3ng \u0111i\u1ec7n ra \u1edf ch\u1ebf \u0111\u1ed9 backup l\u00e0  s\u00f3ng b\u01b0\u1edbc (step wave). Th\u01b0\u1eddng ch\u01b0a c\u00f3 ch\u1ee9c n\u0103ng AVR (VD \u0111i\u1ec7n l\u01b0\u1edbi \u0111\u1ea7u v\u00e0o l\u00e0  180V th\u00ec c\u0169ng cho \u0111i\u1ec7n ra 180V); ch\u01b0a c\u00f3 c\u1ed5ng k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh (d\u00f9ng ph\u1ea7n  m\u1ec1m \u0111\u1ec3 qu\u1ea3n l\u00fd,&#8230;). V\u00e0 th\u01b0\u1eddng d\u00f9ng cho m\u00e1y t\u00ednh c\u00e1 nh\u00e2n (PC). Hi\u1ec7n nay m\u1ee9c CS  min l\u00e0 500VA, max kho\u1ea3ng 3000VA. H\u1ec7 s\u1ed1 CS th\u01b0\u1eddng l\u00e0 0,6. VD: 1000VAx0,6 = 600w<\/li>\n<li><strong><em>\u0110\u1eb7c  \u0111i\u1ec3m<\/em>:<\/strong> \u0110\u00e2y l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 ngu\u1ed3n  v\u1edbi chi ph\u00ed \u0111\u1ea7u t\u01b0 th\u1ea5p, cho ph\u00e9p b\u1ea3o v\u1ec7 ba s\u1ef1 c\u1ed1 c\u01a1 b\u1ea3n nh\u1ea5t c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n  (m\u1ea5t ngu\u1ed3n ho\u00e0n to\u00e0n, qu\u00e1 \u00e1p t\u1ee9c th\u1eddi, gi\u1ea3m \u00e1p t\u1ee9c ). Khi c\u00f3 3 s\u1ef1 c\u1ed1 ngu\u1ed3n  tr\u00ean, UPS s\u1ebd chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 backup s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng b\u00ecnh accu cho t\u1edbi khi  ngu\u1ed3n n\u1eb1m trong t\u1ea7m \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a UPS.<\/li>\n<\/ul>\n<p><span class=\"style1\"><strong><em>H\u1ea1n  ch\u1ebf<\/em> :<\/strong> khi s\u1ef1 c\u1ed1 ngu\u1ed3n n\u1eb1m ngo\u00e0i 3 s\u1ef1 c\u1ed1 m\u1ea5t ngu\u1ed3n, qu\u00e1 \u00e1p t\u1ee9c th\u1eddi, gi\u1ea3m \u00e1p t\u1ee9c  th\u1eddi,UPS s\u1ebd chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 backup s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng t\u1eeb b\u00ecnh accu v\u00e0 c\u00f3 th\u1ec3  ho\u1ea1t \u0111\u1ed9ng h\u1ebft b\u00ecnh accu sau \u0111\u00f3 t\u1eaft UPS th\u1eadm ch\u00ed ngu\u1ed3n \u0111i\u1ec7n l\u01b0\u1edbi v\u1eabn c\u00f2n.<\/span><\/p>\n<p><strong><em>\u1ee8ng d\u1ee5ng<\/em> :<\/strong> c\u00e1c m\u00e1y t\u00ednh \u0111\u1ec3  b\u00e0n, m\u00e1y in, fax trong nh\u00e0 ho\u1eb7c v\u0103n ph\u00f2ng.<\/p>\n<p class=\"style1\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"Offline\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/UPS\/off.jpg\" alt=\"Offline\" width=\"496\" height=\"320\" \/><\/p>\n<p style=\"text-align: center;\"><em>B\u1ed9 l\u01b0u tr\u1eef ngu\u1ed3n C\u00f4ng ngh\u1ec7 OFFLINE<\/em><\/p>\n<p class=\"style1\"><strong>2. Online (Online Double  Conversion UPS)<\/strong><\/p>\n<ul class=\"style1\">\n<li><strong><em>L\u00e0 d\u00f2ng cao c\u1ea5p<\/em><\/strong>: th\u01b0\u1eddng  c\u00f3 c\u00f4ng su\u1ea5t (CS) t\u1eeb 1KVA tr\u1edf l\u00ean. Kh\u00f4ng c\u00f3 th\u1eddi gian chuy\u1ec3n m\u1ea1ch (=0) gi\u1eefa c\u00e1c  ch\u1ebf \u0111\u1ed9, s\u00f3ng ra lu\u00f4n lu\u00f4n l\u00e0 h\u00ecnh Sine (sine wave) chu\u1ea9n (k\u1ec3 c\u1ea3 ch\u1ebf \u0111\u1ed9 backup)  v\u00e0 m\u1ee9c \u0111i\u1ec7n \u00e1p l\u00e0 220V. Th\u01b0\u1eddng c\u00f3 k\u1ebft n\u1ed1i m\u00e1y t\u00ednh, c\u00f3 ch\u1ed1ng s\u00e9t lan truy\u1ec1n,  th\u01b0\u1eddng d\u00f9ng cho thi\u1ebft b\u1ecb cao c\u1ea5p. N\u1ebfu c\u1ea7n th\u1eddi gian l\u01b0u \u0111i\u1ec7n d\u00e0i th\u00ec c\u00f3  th\u1ec3 d\u00f9ng lo\u1ea1i accu ngo\u00e0i (d\u00f2ng Offline kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng n\u00e0y). H\u1ec7 s\u1ed1 CS th\u01b0\u1eddng  l\u00e0 0.7, c\u00f3 c\u1ed5ng k\u1ebft n\u1ed1i m\u00e1y t\u00ednh, qu\u1ea3n l\u00fd b\u1eb1ng ph\u1ea7n m\u1ec1m&#8230;.<\/li>\n<li><strong><em>Ho\u1ea1t \u0111\u1ed9ng<\/em><\/strong> theo  nguy\u00ean t\u1eafc chuy\u1ec3n \u0111\u1ed5i k\u00e9p: t\u1eeb AC sang DC sau \u0111\u00f3 chuy\u1ec3n ng\u01b0\u1ee3c DC sang AC. Do \u0111\u00f3  ngu\u1ed3n \u0111i\u1ec7n cung c\u1ea5p cho t\u1ea3i ho\u00e0n to\u00e0n do UPS t\u1ea1o ra \u0111\u1ea3m b\u1ea3o \u1ed5n \u0111\u1ecbnh c\u1ea3 v\u1ec1 \u0111i\u1ec7n  \u00e1p v\u00e0 t\u1ea7n s\u1ed1. N\u1ebfu t\u1ea3i l\u1edbn qu\u00e1, accu kh\u00f4ng nu\u00f4i n\u1ed5i  th\u00ec n\u00f3 c\u0169ng t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 \u201cby pass\u201d t\u1ee9c l\u00e0 d\u00f9ng \u0111i\u1ec7n l\u01b0\u1edbi. \u00d0i\u1ec1u n\u00e0y l\u00e0m cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c cung c\u1ea5p \u0111i\u1ec7n  b\u1edfi UPS h\u1ea7u nh\u01b0 c\u00e1ch ly ho\u00e0n to\u00e0n v\u1edbi s\u1ef1 thay \u0111\u1ed5i c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n. V\u00ec v\u1eady, ngu\u1ed3n  do UPS online t\u1ea1o ra l\u00e0 ngu\u1ed3n \u0111i\u1ec7n s\u1ea1ch (l\u1ecdc h\u1ea7u h\u1ebft c\u00e1c s\u1ef1 c\u1ed1 tr\u00ean l\u01b0\u1edbi \u0111i\u1ec7n),  ch\u1ed1ng nhi\u1ec5u ho\u00e0n to\u00e0n. \u00d0i\u1ec7n \u00e1p ra ho\u00e0n to\u00e0n h\u00ecnh SIN.<\/li>\n<\/ul>\n<p class=\"style1\"><strong>\u1ee8ng d\u1ee5ng:<\/strong> c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p, x\u1eed l\u00fd qu\u00e1 tr\u00ecnh, c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n v\u1eadn t\u1ea3i,  an ninh, vi\u1ec5n th\u00f4ng, trung t\u00e2m d\u1eef li\u1ec7u nh\u01b0 Server, m\u00e1y x\u00e9t nghi\u1ec7m, ATM, h\u1ec7  th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n,&#8230;<\/p>\n<p class=\"style1\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"Online\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/UPS\/on.jpg\" alt=\"Online\" width=\"496\" height=\"336\" \/><\/p>\n<p style=\"text-align: center;\"><em>B\u1ed9 l\u01b0u tr\u1eef ngu\u1ed3n UPS True Online<\/em><\/p>\n<p class=\"style1\"><strong>3. C\u00f4ng ngh\u1ec7  line-interactive<\/strong><\/p>\n<ul class=\"style1\">\n<li><strong><em>Trung gian<\/em><\/strong> gi\u1eefa 2  lo\u1ea1i tr\u00ean, c\u00f3 ch\u1ee9c n\u0103ng \u1ed5n \u00e1p (AVR) v\u00e0 k\u1ebft n\u1ed1i m\u00e1y t\u00ednh,&#8230;.<\/li>\n<li><strong><em>Ho\u1ea1t \u0111\u1ed9ng<\/em><\/strong> d\u1ef1a  v\u00e0o s\u1ef1 thay \u0111\u1ed5i c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n, m\u1ed7i s\u1ef1 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n, UPS \u0111\u1ec1u t\u00e1c \u0111\u1ed9ng  t\u0103ng ho\u1eb7c gi\u1ea3m \u00e1p \u0111\u1ec3 cho \u0111i\u1ec7n \u00e1p cung c\u1ea5p cho t\u1ea3i l\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng thay \u0111\u1ed5i  (t\u00e1c \u0111\u1ed9ng t\u01b0\u01a1ng h\u1ed7 l\u00e0m vi\u1ec7c nh\u01b0 b\u1ed9 \u1ed5n \u00e1p t\u1ef1 \u0111\u1ed9ng c\u00f3 s\u1ef1 tham gia \u0111i\u1ec1u ch\u1ec9nh b\u1edfi  ngu\u1ed3n DC c\u1ee7a accu). Khi m\u1ea5t \u0111i\u1ec7n, UPS s\u1ebd c\u1ea5p \u0111i\u1ec7n t\u1eeb accu (invertor) \u0111i\u1ec1u  khi\u1ec3n theo \u0111\u1ed9 r\u1ed9ng xung (PWM), th\u1eddi gian qu\u00e1 \u0111\u1ed9 c\u1ee7a b\u1ed9 invector r\u1ea5t nh\u1ecf, do \u0111\u00f3  kh\u00f4ng \u1ea3nh h\u01b0\u1edfng t\u1edbi c\u00e1c thi\u1ebft b\u1ecb nh\u1ea1y c\u1ea3m \u0111i\u1ec7n. D\u1ea1ng \u0111i\u1ec7n \u00e1p ra c\u1ee7a UPS lo\u1ea1i  n\u00e0y l\u00e0 ho\u00e0n to\u00e0n SIN.<\/li>\n<\/ul>\n<p class=\"style1\"><strong><em>Khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 l\u1ecdc<\/em><\/strong>, UPS lo\u1ea1i n\u00e0y l\u00e0 b\u1ed9 ngu\u1ed3n l\u00fd t\u01b0\u1edfng cho c\u00e1c  thi\u1ebft b\u1ecb m\u00e1y t\u00ednh, th\u00f4ng tin, \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<p class=\"style1\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"Line-Interactive\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/UPS\/line.jpg\" alt=\"Line-Interactive\" width=\"496\" height=\"302\" \/><\/p>\n<p style=\"text-align: center;\"><em>B\u1ed9 l\u01b0u tr\u1eef ngu\u1ed3n UPS Line-Interactive<\/em><\/p>\n<p class=\"style1\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"S\u01a1 \u0111\u1ed3\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/UPS\/sodo.jpg\" alt=\"S\u01a1 \u0111\u1ed3\" width=\"498\" height=\"218\" \/><\/p>\n<p class=\"style1\"><strong>4. Th\u01b0\u01a1ng hi\u1ec7u:<\/strong><\/p>\n<ul class=\"style1\">\n<li>SANTAK<\/li>\n<li>APC<\/li>\n<li>PROLINK<\/li>\n<li>RIELLO<\/li>\n<\/ul>\n<p>Mr.Khoa<\/p>\n<p><a href=\"http:\/\/snt.com.vn\/UPS\/\">Chi ti\u1ebft c\u00e1c s\u1ea3n ph\u1ea9m UPS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uninterruptible power supply (UPS) L\u00e0 h\u1ec7 th\u1ed1ng ngu\u1ed3n cung c\u1ea5p li\u00ean t\u1ee5c hay \u0111\u01a1n gi\u1ea3n h\u01a1n l\u00e0 b\u1ed9 l\u01b0u tr\u1eef<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,84],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Uninterruptible power supply (UPS) - Blog SNT - C\u00f4ng Ty TNHH Si\u00eau Nh\u1eadt Thanh - Sao Nhanh Th\u1ebf<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/snt.com.vn\/blog\/uninterruptible-power-supply-ups\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Uninterruptible power supply (UPS) - 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