{"id":1616,"date":"2025-04-11T10:25:16","date_gmt":"2025-04-11T03:25:16","guid":{"rendered":"https:\/\/mienbacelectric.com\/?p=1616"},"modified":"2025-05-21T01:08:12","modified_gmt":"2025-05-20T18:08:12","slug":"cach-tinh-cong-suat-may-bien-ap-3-pha","status":"publish","type":"post","link":"https:\/\/mienbacelectric.com\/?p=1616","title":{"rendered":"C\u00e1ch t\u00ednh c\u00f4ng su\u1ea5t m\u00e1y bi\u1ebfn \u00e1p 3 pha"},"content":{"rendered":"

C\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p l\u00e0 m\u1ed9t trong nh\u1eefng ti\u00eau ch\u00ed m\u00e0 ng\u01b0\u1eddi d\u00f9ng quan t\u00e2m khi ch\u1ecdn mua m\u00e1y bi\u1ebfn \u00e1p. V\u1eady c\u00e1ch t\u00ednh c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p 3 pha nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng ch\u00fang t\u00f4i t\u00ecm hi\u1ec3u ngay sau \u0111\u00e2y.<\/p>\n

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1. Kh\u00e1i ni\u1ec7m v\u1ec1 c\u00f4ng su\u1ea5t m\u00e1y bi\u1ebfn \u00e1p<\/strong><\/h2>\n

C\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p l\u00e0 l\u01b0\u1ee3ng \u0111i\u1ec7n m\u00e0 m\u00e1y chuy\u1ec3n \u0111\u1ed5i cho t\u1ea3i ph\u00eda sau c\u1ee7a n\u00f3. Do m\u00e1y bi\u1ebfn \u00e1p ch\u1ec9 c\u00f3 ch\u1ee9c n\u0103ng truy\u1ec1n t\u1ea3i v\u00e0 ph\u00e2n ph\u1ed1i \u0111i\u1ec7n ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng nh\u01b0 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n n\u00ean c\u00f4ng su\u1ea5t \u0111i\u1ec7n m\u1ee9c c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng kVa ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 kW. Khi truy\u1ec1n t\u1ea3i \u0111i\u1ec7n n\u0103ng, c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y c\u00f3 hai th\u00e0nh ph\u1ea7n l\u00e0 c\u00f4ng su\u1ea5t ph\u1ea3i kh\u00e1ng kVA v\u00e0 c\u00f4ng su\u1ea5t t\u00e1c d\u1ee5ng kW.<\/p>\n

C\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p l\u00e0 ch\u1ec9 s\u1ed1 k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00e1y ph\u00f9 h\u1ee3p v\u1edbi t\u1ea3i \u0111\u1ec3 tr\u00e1nh l\u00e3ng ph\u00ed m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c l\u00e2u d\u00e0i.<\/p>\n

\"\"
M\u00e1y bi\u1ebfn \u00e1p 3 pha<\/figcaption><\/figure>\n

\u0110\u1ec3 \u0111o\u1ea1n v\u0103n tr\u00ean chu\u1ea9n SEO, m\u00ecnh s\u1ebd \u0111i\u1ec1u ch\u1ec9nh m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 nh\u01b0 ti\u00eau \u0111\u1ec1, t\u1eeb kh\u00f3a, c\u1ea5u tr\u00fac c\u00e2u, v\u00e0 t\u1ed1i \u01b0u h\u00f3a \u0111\u1ed9 d\u00e0i c\u0169ng nh\u01b0 \u0111\u1ed9 d\u1ec5 \u0111\u1ecdc c\u1ee7a b\u00e0i vi\u1ebft. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3n s\u1eeda l\u1ea1i:<\/p>\n

\n

2. C\u00f4ng Su\u1ea5t \u0110\u1ecbnh M\u1ee9c C\u1ee7a M\u00e1y Bi\u1ebfn \u00c1p<\/h3>\n

M\u00e1y bi\u1ebfn \u00e1p l\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c t\u1eeb 17 \u0111\u1ebfn 20 n\u0103m. Trong su\u1ed1t qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng, m\u00e1y bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u0111\u1ec3 l\u00e0m vi\u1ec7c \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng g\u00e2y ra s\u1ef1 c\u1ed1, v\u00e0 ch\u1ebf \u0111\u1ed9 n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1ebf \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c<\/strong>. Khi m\u00e1y bi\u1ebfn \u00e1p ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 n\u00e0y, c\u00f4ng su\u1ea5t \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c<\/strong>, bao g\u1ed3m c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111i\u1ec7n \u00e1p UU<\/span>, d\u00f2ng \u0111i\u1ec7n II<\/span>, v\u00e0 t\u1ea7n s\u1ed1 ff<\/span> \u0111\u1ecbnh m\u1ee9c.<\/p>\n

C\u00f4ng Su\u1ea5t \u0110\u1ecbnh M\u1ee9c L\u00e0 G\u00ec?<\/h4>\n

C\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c l\u00e0 t\u1ed5ng c\u00f4ng su\u1ea5t m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t quy \u0111\u1ecbnh trong h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p. M\u00e1y c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c khi \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh UU<\/span>, t\u1ea7n s\u1ed1 danh \u0111\u1ecbnh ff<\/span> v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m m\u00e1t \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng. Khi \u0111\u00f3, tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn kho\u1ea3ng 20 n\u0103m.<\/p>\n

C\u00f4ng Su\u1ea5t \u0110\u1ecbnh M\u1ee9c C\u1ee7a M\u00e1y Bi\u1ebfn \u00c1p 1 Pha, 2 Pha v\u00e0 3 Pha<\/h4>\n
    \n
  • M\u00e1y bi\u1ebfn \u00e1p 1 pha v\u00e0 2 pha<\/strong>: C\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p m\u1ed9t pha ho\u1eb7c hai pha ch\u00ednh l\u00e0 c\u00f4ng su\u1ea5t c\u1ee7a cu\u1ed9n d\u00e2y v\u00e0 t\u1ed5ng c\u00f4ng su\u1ea5t tr\u00ean m\u1ed7i cu\u1ed9n d\u00e2y.<\/li>\n
  • M\u00e1y bi\u1ebfn \u00e1p 3 pha<\/strong>: C\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p 3 pha c\u00f3 c\u00e1c d\u1ea1ng quy \u0111\u1ecbnh kh\u00e1c nhau nh\u01b0:\n
      \n
    • 100\/100\/100<\/strong>: M\u1ed7i cu\u1ed9n d\u00e2y c\u00f3 c\u00f4ng su\u1ea5t b\u1eb1ng c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c.<\/li>\n
    • 100\/100\/66.7<\/strong>: Hai \u0111\u1ea7u cu\u1ed9n d\u00e2y c\u00f3 c\u00f4ng su\u1ea5t b\u1eb1ng c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c, v\u00e0 c\u00f4ng su\u1ea5t c\u1ee7a \u0111\u1ea7u cu\u1ed9n d\u00e2y th\u1ee9 ba b\u1eb1ng 66,7% c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c.<\/li>\n<\/ul>\n<\/li>\n
    • M\u00e1y bi\u1ebfn \u00e1p t\u1ef1 \u0111\u1ed9ng<\/strong>: C\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00e1c \u0111\u1ea7u n\u1ed1i s\u01a1 c\u1ea5p ho\u1eb7c th\u1ee9 c\u1ea5p li\u00ean quan t\u1ef1 \u0111\u1ed9ng, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00f4ng l\u01b0\u1ee3ng<\/strong>.<\/li>\n<\/ul>\n

      C\u00e1ch T\u00ednh C\u00f4ng Su\u1ea5t \u0110\u1ecbnh M\u1ee9c C\u1ee7a M\u00e1y Bi\u1ebfn \u00c1p<\/h4>\n

      C\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p (kVA) l\u00e0 t\u1ed5ng c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng v\u00e0 c\u00f4ng su\u1ea5t t\u00e1c d\u1ee5ng. M\u00e1y bi\u1ebfn \u00e1p ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n \u00e1p, v\u1edbi c\u00f4ng th\u1ee9c:<\/p>\n

        \n
      • M\u00e1y 1 pha<\/strong>: S=U\u22c5IS = U \\cdot I<\/span><\/li>\n
      • M\u00e1y 3 pha<\/strong>: S=U\u22c5IS = U \\cdot I<\/span><\/li>\n<\/ul>\n

        Trong \u0111\u00f3:<\/p>\n

          \n
        • C\u00f4ng su\u1ea5t t\u00e1c d\u1ee5ng<\/strong>: P=U\u22c5I\u22c5cos\u2061\u03c6P = U \\cdot I \\cdot \\cos \\varphi<\/span> (kW)<\/li>\n
        • C\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng<\/strong>: Q=U\u22c5I\u22c5sin\u2061\u03c6Q = U \\cdot I \\cdot \\sin \\varphi<\/span> (kVA)<\/li>\n<\/ul>\n

          C\u00f4ng su\u1ea5t th\u1ef1c c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p bao g\u1ed3m c\u1ea3 c\u00f4ng su\u1ea5t \u0111\u00e3 m\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c:<\/p>\n

            \n
          • C\u00f4ng su\u1ea5t th\u1ef1c<\/strong>: P=S\u22c5cos\u2061\u03c6P = S \\cdot \\cos \\varphi<\/span><\/li>\n<\/ul>\n

            Trong \u0111\u00f3:<\/p>\n

              \n
            • S<\/strong>: C\u00f4ng su\u1ea5t t\u1ed5ng (kVA)<\/li>\n
            • P<\/strong>: C\u00f4ng su\u1ea5t th\u1ef1c (kW)<\/li>\n
            • U<\/strong>: Hi\u1ec7u \u0111i\u1ec7n th\u1ebf (V)<\/li>\n
            • I<\/strong>: D\u00f2ng \u0111i\u1ec7n (A)<\/li>\n
            • \u03c6\\varphi<\/span><\/strong>: G\u00f3c l\u1ec7ch pha gi\u1eefa d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p<\/li>\n
            • cos\u2061\u03c6\\cos \\varphi<\/span><\/strong>: H\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t (Power Factor)<\/li>\n<\/ul>\n

              \"H\u00ecnh<\/h2>\n

              H\u00ecnh \u1ea3nh m\u00e1y bi\u1ebfn \u00e1p th\u1ee7y \u0111i\u1ec7n<\/p>\n

              3. \u00dd ngh\u0129a c\u1ee7a h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t<\/strong><\/h2>\n

              Khi m\u00e1y bi\u1ebfn \u00e1p ho\u1ea1t \u0111\u1ed9ng s\u1ebd nh\u1eadn n\u0103ng l\u01b0\u1ee3ng t\u1eeb l\u01b0\u1edbi P1. Qua qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i, t\u1ed5n th\u1ea5t s\u1eaft, \u0111\u1ed3ng,.. Ph\u1ea7n c\u00f2n l\u1ea1i l\u00e0 c\u00f4ng su\u1ea5t P2 cung c\u1ea5p cho t\u1ea3i<\/p>\n

              Hi\u1ec7u qu\u1ea3 \u0220 = P2 \/ (P2 + t\u1ed5ng t\u1ed5n th\u1ea5t)<\/p>\n

              V\u1edbi P2 = S.cos\u03d5 (S = P \u2013 c\u00f4ng su\u1ea5t t\u00e1c d\u1ee5ng + Q \u2013 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng)<\/p>\n

              C\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng Q c\u1ee7a m\u00e1y kh\u00f4ng t\u1ea1o ra c\u00f4ng h\u1eefu \u00edch, nh\u01b0ng c\u1ea7n thi\u1ebft cho vi\u1ec7c bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p. C\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng Q c\u00f3 nhi\u1ec7m v\u1ee5 t\u1eeb h\u00f3a l\u00f5i th\u00e9p trong m\u00e1y \u0111\u1ec3 truy\u1ec1n c\u00f4ng su\u1ea5t s\u01a1 c\u1ea5p sang c\u00f4ng su\u1ea5t th\u1ee9 c\u1ea5p. C\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng Q \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f4ng su\u1ea5t kh\u00f4ng c\u00f4ng. V\u00ec v\u1eady \u0111\u1ec3 t\u0103ng c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p ta c\u1ea7n t\u0103ng c\u00e1c h\u1ec7 s\u1ed1 ~ 1. Nh\u01b0 v\u1eady s\u1ebd n\u00e2ng cao \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

              C\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p l\u00e0 m\u1ed9t trong nh\u1eefng ti\u00eau ch\u00ed m\u00e0 ng\u01b0\u1eddi d\u00f9ng quan t\u00e2m khi ch\u1ecdn mua m\u00e1y bi\u1ebfn \u00e1p. V\u1eady c\u00e1ch t\u00ednh c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p 3 pha nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng ch\u00fang t\u00f4i t\u00ecm hi\u1ec3u ngay sau \u0111\u00e2y. 1. Kh\u00e1i ni\u1ec7m v\u1ec1 c\u00f4ng su\u1ea5t m\u00e1y bi\u1ebfn \u00e1p […]<\/p>\n","protected":false},"author":1,"featured_media":1617,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[312],"tags":[338,337],"yoast_head":"\nC\u00e1ch t\u00ednh c\u00f4ng su\u1ea5t m\u00e1y bi\u1ebfn \u00e1p 3 pha - C\u00d4NG TY TNHH C\u01a0 \u0110I\u1ec6N MI\u1ec0N B\u1eaeC. 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