{"id":1994,"date":"2025-12-23T01:56:01","date_gmt":"2025-12-23T01:56:01","guid":{"rendered":"https:\/\/www.upspower-supply.com\/?p=1994"},"modified":"2026-01-15T09:10:39","modified_gmt":"2026-01-15T09:10:39","slug":"how-to-convert-3-phase-to-single-phase-in-a-ups-power-supply-system","status":"publish","type":"post","link":"https:\/\/www.upspower-supply.com\/vi\/how-to-convert-3-phase-to-single-phase-in-a-ups-power-supply-system\/","title":{"rendered":"C\u00e1ch chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n 3 pha sang 1 pha trong h\u1ec7 th\u1ed1ng ngu\u1ed3n UPS"},"content":{"rendered":"<p>H\u1ec7 th\u1ed1ng \u0111i\u1ec7n ba pha \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng v\u00ec ch\u00fang mang l\u1ea1i hi\u1ec7u su\u1ea5t cao h\u01a1n, ph\u00e2n b\u1ed5 t\u1ea3i t\u1ed1t h\u01a1n v\u00e0 c\u00f4ng su\u1ea5t l\u1edbn h\u01a1n. Do \u0111\u00f3, nhi\u1ec1u h\u1ec7 th\u1ed1ng ngu\u1ed3n d\u1ef1 ph\u00f2ng (UPS) c\u1ee1 l\u1edbn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o ba pha.<\/p><p>Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p nh\u1ea5t \u0111\u1ecbnh\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ea1n ch\u1ebf v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n t\u1ea1i \u0111\u1ecba \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t, thay \u0111\u1ed5i thi\u1ebft b\u1ecb ho\u1eb7c gi\u1ea3m t\u1ea3i\u2014vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i UPS ba pha \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1eeb ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha tr\u1edf n\u00ean c\u1ea7n thi\u1ebft. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch th\u1ee9c chuy\u1ec3n \u0111\u1ed5i \u0111\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o, c\u00e1c v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt c\u1ea7n xem x\u00e9t v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p t\u1ed1t nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">T\u00ecm hi\u1ec3u v\u1ec1 h\u1ec7 th\u1ed1ng UPS 3 pha v\u00e0 1 pha<\/h2><h3 class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng UPS ba pha<\/h3><p>H\u1ec7 th\u1ed1ng UPS ba pha s\u1eed d\u1ee5ng ba d\u1ea1ng s\u00f3ng \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u l\u1ec7ch pha 120 \u0111\u1ed9. C\u1ea5u h\u00ecnh n\u00e0y cho ph\u00e9p h\u1ec7 th\u1ed1ng cung c\u1ea5p m\u1ee9c c\u00f4ng su\u1ea5t cao h\u01a1n v\u1edbi hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0 gi\u1ea3m t\u1ea3i \u0111i\u1ec7n cho c\u00e1c linh ki\u1ec7n. H\u1ec7 th\u1ed1ng UPS ba pha th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u, b\u1ec7nh vi\u1ec7n, nh\u00e0 m\u00e1y v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi c\u00f4ng su\u1ea5t cao kh\u00e1c.<\/p><h3 class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng UPS m\u1ed9t pha<\/h3><p>H\u1ec7 th\u1ed1ng UPS m\u1ed9t pha cung c\u1ea5p \u0111i\u1ec7n b\u1eb1ng m\u1ed9t d\u1ea1ng s\u00f3ng xoay chi\u1ec1u duy nh\u1ea5t. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u1ea3i nh\u1ecf nh\u01b0 thi\u1ebft b\u1ecb v\u0103n ph\u00f2ng, thi\u1ebft b\u1ecb m\u1ea1ng v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng CNTT \u0111\u01a1n gi\u1ea3n. M\u1eb7c d\u00f9 thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n h\u01a1n, h\u1ec7 th\u1ed1ng m\u1ed9t pha c\u00f3 t\u1ed5ng c\u00f4ng su\u1ea5t h\u1ea1n ch\u1ebf h\u01a1n so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p ba pha.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">T\u1ea1i sao c\u1ea7n chuy\u1ec3n \u0111\u1ed5i UPS 3 pha sang 1 pha?<\/h2><p>C\u00f3 m\u1ed9t s\u1ed1 l\u00fd do th\u1ef1c t\u1ebf \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng UPS ba pha sang ho\u1ea1t \u0111\u1ed9ng m\u1ed9t pha:<\/p><ul class=\"wp-block-list\"><li><strong>Ngu\u1ed3n \u0111i\u1ec7n h\u1ea1n ch\u1ebf t\u1ea1i \u0111\u1ecba \u0111i\u1ec3m n\u00e0y:<\/strong> C\u01a1 s\u1edf n\u00e0y ch\u1ec9 c\u00f3 ngu\u1ed3n \u0111i\u1ec7n l\u01b0\u1edbi m\u1ed9t pha.<\/li>\n\n<li><strong>T\u1ea3i c\u00e1c thay \u0111\u1ed5i:<\/strong> C\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 \u0111\u00e3 gi\u1ea3m v\u00e0 kh\u00f4ng c\u00f2n y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t ba pha n\u1eefa.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch thi\u1ebft b\u1ecb:<\/strong> Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha.<\/li>\n\n<li><strong>T\u00e1i s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng:<\/strong> T\u00e1i s\u1eed d\u1ee5ng b\u1ed9 l\u01b0u \u0111i\u1ec7n ba pha hi\u1ec7n c\u00f3 cho m\u1ed9t \u1ee9ng d\u1ee5ng nh\u1ecf h\u01a1n.<\/li><\/ul><p>\u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu UPS ba pha \u0111\u1ec1u h\u1ed7 tr\u1ee3 chuy\u1ec3n \u0111\u1ed5i. Lu\u00f4n ph\u1ea3i xem x\u00e9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">Y\u00eau c\u1ea7u v\u1ec1 an to\u00e0n v\u00e0 chuy\u00ean m\u00f4n<\/h2><p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i b\u1ed9 l\u01b0u \u0111i\u1ec7n UPS ba pha sang m\u1ed9t pha kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f4ng vi\u1ec7c t\u1ef1 l\u00e0m \u0111\u01b0\u1ee3c. Qu\u00e1 tr\u00ecnh n\u00e0y li\u00ean quan \u0111\u1ebfn \u0111i\u1ec7n \u00e1p cao, c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t ph\u1ee9c t\u1ea1p v\u00e0 c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t v\u1ec1 ti\u00eau chu\u1ea9n \u0111i\u1ec7n.<\/p><ul class=\"wp-block-list\"><li>T\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng vi\u1ec7c ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi c\u00e1c chuy\u00ean gia \u0111i\u1ec7n c\u00f3 tr\u00ecnh \u0111\u1ed9 chuy\u00ean m\u00f4n.<\/li>\n\n<li>Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh s\u1eeda \u0111\u1ed5i, UPS ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e1ch ly ho\u00e0n to\u00e0n kh\u1ecfi ngu\u1ed3n \u0111i\u1ec7n l\u01b0\u1edbi v\u00e0 pin.<\/li>\n\n<li>Ph\u1ea3i lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 \u0111i\u1ec7n v\u00e0 ti\u00eau chu\u1ea9n an to\u00e0n \u0111\u1ecba ph\u01b0\u01a1ng.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">C\u00e1ch chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n 3 pha sang 1 pha trong UPS<\/h2><h3 class=\"wp-block-heading\">1. \u0110\u00e1nh gi\u00e1 v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch h\u1ec7 th\u1ed1ng<\/h3><p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y \u0111\u00e1nh gi\u00e1 t\u1ed5ng t\u1ea3i m\u00e0 UPS ph\u1ea3i h\u1ed7 tr\u1ee3. X\u00e1c nh\u1eadn r\u1eb1ng m\u1ee9c c\u00f4ng su\u1ea5t y\u00eau c\u1ea7u n\u1eb1m trong gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ngu\u1ed3n m\u1ed9t pha. M\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng UPS ba pha c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i gi\u1ea3m c\u00f4ng su\u1ea5t khi ho\u1ea1t \u0111\u1ed9ng v\u1edbi ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha.<\/p><p>Ti\u1ebfp theo, h\u00e3y tham kh\u1ea3o t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t UPS \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 \u0111\u1ea7u v\u00e0o m\u1ed9t pha hay kh\u00f4ng v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn c\u1ea5u h\u00ecnh n\u00e0o kh\u1ea3 d\u1ee5ng.<\/p><h3 class=\"wp-block-heading\">2. C\u1ea5u h\u00ecnh l\u1ea1i ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o<\/h3><p>Trong b\u1ed9 l\u01b0u \u0111i\u1ec7n UPS ba pha, ph\u1ea7n ch\u1ec9nh l\u01b0u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 nh\u1eadn ngu\u1ed3n \u0111i\u1ec7n t\u1eeb ba pha ri\u00eang bi\u1ec7t. \u0110\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha, ph\u1ea7n n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh l\u1ea1i. Vi\u1ec7c n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p><ul class=\"wp-block-list\"><li>\u0110\u1ea5u n\u1ed1i l\u1ea1i c\u00e1c \u0111\u1ea7u c\u1ef1c \u0111\u1ea7u v\u00e0o theo c\u1ea5u h\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t.<\/li>\n\n<li>L\u1eafp \u0111\u1eb7t d\u00e2y n\u1ed1i ho\u1eb7c c\u00e0i \u0111\u1eb7t c\u1ea5u h\u00ecnh n\u1ed9i b\u1ed9<\/li>\n\n<li>S\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn \u00e1p ngo\u00e0i \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n.<\/li><\/ul><p>Vi\u1ec7c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp nhi\u1ec1u pha m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 c\u00e2n nh\u1eafc thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p l\u00e0 kh\u00f4ng an to\u00e0n v\u00e0 c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng UPS.<\/p><h3 class=\"wp-block-heading\">3. Chuy\u1ec3n \u0111\u1ed5i d\u1ef1a tr\u00ean m\u00e1y bi\u1ebfn \u00e1p<\/h3><p>Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, m\u00e1y bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i. M\u00e1y bi\u1ebfn \u00e1p c\u00e1ch ly m\u1ed9t pha ho\u1eb7c m\u00e1y bi\u1ebfn \u00e1p t\u0103ng\/gi\u1ea3m \u00e1p \u0111\u1ea3m b\u1ea3o UPS nh\u1eadn \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n ch\u00ednh x\u00e1c \u0111\u1ed3ng th\u1eddi duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh \u0111i\u1ec7n. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y c\u0169ng c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng v\u00e0 b\u1ea3o v\u1ec7 c\u1ea3 UPS l\u1eabn c\u00e1c thi\u1ebft b\u1ecb t\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p><h3 class=\"wp-block-heading\">4. C\u1ea5u h\u00ecnh v\u00e0 c\u00e0i \u0111\u1eb7t \u0111i\u1ec1u khi\u1ec3n UPS<\/h3><p>Sau khi ho\u00e0n t\u1ea5t c\u00e1c thay \u0111\u1ed5i ph\u1ea7n c\u1ee9ng, h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n UPS c\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt. Vi\u1ec7c n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m \u0111i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t \u0111\u1ea7u v\u00e0o, th\u00f4ng s\u1ed1 s\u1ea1c pin v\u00e0 ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o \u0111\u1ec3 UPS nh\u1eadn di\u1ec7n ch\u00ednh x\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea7u v\u00e0o m\u1ed9t pha.<\/p><h3 class=\"wp-block-heading\">5. Th\u1eed nghi\u1ec7m v\u00e0 v\u1eadn h\u00e0nh<\/h3><p>Ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng l\u00e0 r\u1ea5t quan tr\u1ecdng. B\u1ed9 l\u01b0u \u0111i\u1ec7n (UPS) c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng t\u1ea3i v\u00e0 c\u00f3 t\u1ea3i \u0111\u1ec3 x\u00e1c minh \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p, hi\u1ec7u su\u1ea5t nhi\u1ec7t v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ea3nh b\u00e1o. B\u1ea5t k\u1ef3 ch\u1ec9 s\u1ed1 b\u1ea5t th\u01b0\u1eddng n\u00e0o c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c tr\u01b0\u1edbc khi \u0111\u01b0a h\u1ec7 th\u1ed1ng v\u00e0o ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">Nh\u1eefng th\u00e1ch th\u1ee9c v\u00e0 c\u00e2n nh\u1eafc ch\u00ednh<\/h2><ul class=\"wp-block-list\"><li><strong>Gi\u1ea3m c\u00f4ng su\u1ea5t:<\/strong> B\u1ed9 l\u01b0u \u0111i\u1ec7n ba pha ho\u1ea1t \u0111\u1ed9ng v\u1edbi ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra t\u1ed5ng th\u1ea5p h\u01a1n.<\/li>\n\n<li><strong>\u1ee8ng su\u1ea5t nhi\u1ec7t:<\/strong> Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn qu\u00e1 nhi\u1ec7t v\u00e0 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd linh ki\u1ec7n.<\/li>\n\n<li><strong>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o h\u00e0nh:<\/strong> Vi\u1ec7c s\u1eeda \u0111\u1ed5i b\u00ean trong c\u00f3 th\u1ec3 l\u00e0m m\u1ea5t hi\u1ec7u l\u1ef1c b\u1ea3o h\u00e0nh c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t ban \u0111\u1ea7u.<\/li>\n\n<li><strong>Ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng:<\/strong> C\u1ea7n ph\u1ea3i qu\u1ea3n l\u00fd c\u1ea9n th\u1eadn hi\u1ec7n t\u01b0\u1ee3ng s\u00f3ng h\u00e0i v\u00e0 s\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\u0110i\u1ec7n \u00e1p 208V c\u00f3 ph\u1ea3i l\u00e0 \u0111i\u1ec7n m\u1ed9t pha kh\u00f4ng?<\/h2><p>Nhi\u1ec1u ng\u01b0\u1eddi th\u1eafc m\u1eafc li\u1ec7u b\u1ed9 ngu\u1ed3n UPS 208V c\u00f3 ph\u1ea3i l\u00e0 ngu\u1ed3n m\u1ed9t pha hay kh\u00f4ng. C\u00e2u tr\u1ea3 l\u1eddi l\u00e0: <strong>th\u01b0\u1eddng kh\u00f4ng<\/strong>.<\/p><p>208V l\u00e0 <strong>h\u1ea7u nh\u01b0 lu\u00f4n l\u00e0 \u0111i\u1ec7n \u00e1p ba pha<\/strong>\u0110\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan nhanh:<\/p><ul class=\"wp-block-list\"><li><strong>Nh\u00e0 \u1edf \/ V\u0103n ph\u00f2ng nh\u1ecf:<\/strong> 120V, m\u1ed9t pha<\/li>\n\n<li><strong>Doanh nghi\u1ec7p nh\u1ecf:<\/strong> 208V, <strong>ba pha<\/strong><\/li>\n\n<li><strong>Th\u01b0\u01a1ng m\u1ea1i ti\u00eau chu\u1ea9n:<\/strong> 220\u2013230V, m\u1ed9t pha<\/li>\n\n<li><strong>Trung t\u00e2m d\u1eef li\u1ec7u c\u00f4ng nghi\u1ec7p\/quy m\u00f4 l\u1edbn:<\/strong> 380\u2013480V, ba pha<\/li><\/ul><p>\u26a1 <strong>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n bi\u1ebft:<\/strong><\/p><ul class=\"wp-block-list\"><li>\u0110i\u1ec7n \u00e1p ba pha 208V l\u00e0 ti\u00eau chu\u1ea9n trong c\u00e1c t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i \u1edf B\u1eafc M\u1ef9.<\/li>\n\n<li>B\u1ea1n <strong>C\u00f3 th\u1ec3<\/strong> B\u1ea1n c\u00f3 th\u1ec3 l\u1ea5y \u0111i\u1ec7n \u00e1p m\u1ed9t pha 208V b\u1eb1ng c\u00e1ch n\u1ed1i m\u1ed9t pha v\u1edbi d\u00e2y trung t\u00ednh (L1\u2013N), nh\u01b0ng c\u00e1c h\u1ec7 th\u1ed1ng UPS th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u0111\u1ea7u v\u00e0o ba pha \u0111\u1ec3 x\u1eed l\u00fd t\u1ea3i cao m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/li>\n\n<li>C\u00e1c b\u1ed9 UPS c\u1ee7a <strong>20 kVA tr\u1edf l\u00ean<\/strong> Ch\u00fang h\u1ea7u h\u1ebft l\u00e0 \u0111i\u1ec7n ba pha, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111i\u1ec7n m\u1ed9t pha.<\/li><\/ul><h2 class=\"wp-block-heading\">Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2><p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng UPS ba pha sang ho\u1ea1t \u0111\u1ed9ng m\u1ed9t pha l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p kh\u1ea3 thi khi \u0111i\u1ec1u ki\u1ec7n t\u1ea1i \u0111\u1ecba \u0111i\u1ec3m ho\u1eb7c y\u00eau c\u1ea7u t\u1ea3i thay \u0111\u1ed5i. N\u1ebfu \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch, n\u00f3 cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c t\u00e1i s\u1eed d\u1ee5ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng UPS hi\u1ec7n c\u00f3 trong khi v\u1eabn duy tr\u00ec ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/p><p>Do t\u00ednh ph\u1ee9c t\u1ea1p v\u1ec1 k\u1ef9 thu\u1eadt v\u00e0 r\u1ee7i ro an to\u00e0n li\u00ean quan, vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u00e0y lu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 th\u1ef1c hi\u1ec7n b\u1edfi c\u00e1c chuy\u00ean gia c\u00f3 tr\u00ecnh \u0111\u1ed9, v\u1edbi s\u1ef1 ch\u00fa \u00fd c\u1ea9n th\u1eadn \u0111\u1ebfn c\u00e1c ti\u00eau chu\u1ea9n \u0111i\u1ec7n, \u0111\u1ecbnh m\u1ee9c h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i.<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u1ec7 th\u1ed1ng \u0111i\u1ec7n ba pha \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng v\u00ec ch\u00fang mang l\u1ea1i hi\u1ec7u su\u1ea5t cao h\u01a1n, ph\u00e2n b\u1ed5 t\u1ea3i t\u1ed1t h\u01a1n, [\u2026]<\/p>","protected":false},"author":1,"featured_media":1995,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1994","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Convert 3 Phase to Single Phase in a UPS Power Supply System - UPS power supply<\/title>\n<meta name=\"description\" content=\"Learn how to convert a 3 phase UPS to single phase safely. 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