{"id":3358,"date":"2021-10-20T16:54:03","date_gmt":"2021-10-20T09:54:03","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=3358"},"modified":"2021-10-22T18:08:43","modified_gmt":"2021-10-22T11:08:43","slug":"dong-dien-xoay-chieu-la-gi-cach-tao-ra-dong-dien-xoay-chieu","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/dong-dien-xoay-chieu-la-gi-cach-tao-ra-dong-dien-xoay-chieu\/","title":{"rendered":"D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec? \u2013 C\u00e1ch t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng quan tr\u1ecdng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn v\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu trong cu\u1ed9c s\u1ed1ng hi\u1ec7n nay, \u0111\u1ea3m b\u1ea3o cho s\u1ef1 t\u1ed3n t\u1ea1i v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a con ng\u01b0\u1eddi. M\u1eb7c d\u00f9 v\u1eady nh\u01b0ng kh\u00f4ng ph\u1ea3i ai c\u0169ng n\u1eafm ch\u1eafc c\u00e1c th\u00f4ng tin v\u00e0 \u0111\u1eb7t ra c\u00e2u h\u1ecfi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec? C\u00e1c t\u00e1c d\u1ee5ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n,\u2026.\u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c c\u00e2u tr\u1ea3 l\u1eddi ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t, c\u00e1c b\u1ea1n h\u00e3y theo d\u00f5i nh\u1eefng th\u00f4ng tin chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec? D\u1ee5ng c\u1ee5 \u0111o<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ecbnh ngh\u0129a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1i ni\u1ec7m d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec? D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 d\u00f2ng \u0111i\u1ec7n c\u00f3 chi\u1ec1u v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i theo th\u1eddi gian, nh\u1eefng thay \u0111\u1ed5i n\u00e0y th\u01b0\u1eddng s\u1ebd tu\u1ea7n ho\u00e0n theo m\u1ed9t chu k\u1ef3 nh\u1ea5t \u0111\u1ecbnh. Ch\u00fang \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u ho\u1eb7c \u0111\u01b0\u1ee3c bi\u1ebfn \u0111\u1ed5i t\u1eeb ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo ki\u1ebfn th\u1ee9c \u0111\u1ea1i c\u01b0\u01a1ng v\u1ec1 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 t\u00ean vi\u1ebft t\u1eaft l\u00e0 AC \u2013 Alternating Current, k\u00fd hi\u1ec7u d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u b\u1edfi h\u00ecnh ~ (d\u1ea5u ng\u00e3). Ngh\u0129a l\u00e0 chi\u1ec1u c\u1ee7a d\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch lu\u00f4n thay \u0111\u1ed5i theo th\u1eddi gian v\u00e0 n\u00f3 \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu trong cu\u1ed9c s\u1ed1ng hi\u1ec7n nay v\u1edbi \u0111i\u1ec7n \u00e1p hi\u1ec7u d\u1ee5ng l\u00e0 220V<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ee5ng c\u1ee5 \u0111o d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 r\u1ea5t nhi\u1ec1u thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u nh\u01b0ng ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay l\u00e0 c\u00e1c b\u1ed9 ampe k\u00ecm c\u1ee7a d\u00e2n \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n th\u00f4ng minh hay trong c\u00e1c nh\u00e0 m\u00e1y, x\u00ed nghi\u1ec7p h\u1ecd c\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nh\u01b0 b\u1ed9 \u0111o \u0111\u1ebfm \u0111i\u1ec7n n\u0103ng th\u00f4ng minh, \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng,\u2026l\u1eafp tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng ngu\u1ed3n v\u00e0o \u0111\u1ea3m b\u1ea3o ngu\u1ed3n \u0111i\u1ec7n lu\u00f4n \u1ed5n \u0111\u1ecbnh, gi\u00fap cho c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00f4ng th\u1ee9c v\u1ec1 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng su\u1ea5t c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng su\u1ea5t c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a d\u00f2ng \u0111i\u1ec7n, \u0111i\u1ec7n \u00e1p v\u00e0 \u0111\u1ed9 l\u1ec7ch pha c\u1ee7a ch\u00ednh c\u01b0\u1eddng \u0111\u1ed9 v\u1edbi \u0111i\u1ec7n \u00e1p, n\u00ean c\u00f3 c\u00f4ng th\u1ee9c \u0111i\u1ec7n xoay chi\u1ec1u nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P = U.I.cos\u03b1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P: C\u00f4ng su\u1ea5t c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (W)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U: \u0110i\u1ec7n \u00e1p (V)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I: C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n (A)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03b1: \u0110\u1ed9 l\u1ec7ch pha gi\u1eefa c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chu k\u1ef3 v\u00e0 t\u1ea7n s\u1ed1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chu k\u1ef3 c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u tr\u1edf l\u1ea1i v\u1ecb tr\u00ed ban \u0111\u1ea7u. \u0110\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 T, \u0111\u01a1n v\u1ecb t\u00ednh b\u1eb1ng gi\u00e2y (s),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea7n s\u1ed1 \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 s\u1ed1 l\u1ea7n l\u1eb7p l\u1ea1i trang th\u00e1i c\u0169 c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u trong m\u1ed9t gi\u00e2y; k\u00fd hi\u1ec7u l\u00e0 F v\u00e0 c\u00f3 \u0111\u01a1n v\u1ecb t\u00ednh l\u00e0 Hz<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c t\u00ednh t\u1ea7n s\u1ed1 nh\u01b0 sau: F=1\/T<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00e1c d\u1ee5ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 3 t\u00e1c d\u1ee5ng ch\u00ednh \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng nhi\u1ec7t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng nhi\u1ec7t l\u00e0 m\u1ed9t trong nh\u1eefng t\u00e1c d\u1ee5ng n\u1ed5i b\u1eadt c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n ch\u00fang t\u00f4i l\u1ea5y v\u00ed d\u1ee5 v\u1ec1 b\u00f3ng \u0111\u00e8n d\u00e2y t\u00f3c. B\u1ea1n s\u1ebd c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng nhi\u1ec7t t\u1eeb b\u00f3ng \u0111\u00e8n khi ch\u00fang \u0111ang ho\u1ea1t \u0111\u1ed9ng. M\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m kh\u00e1c c\u0169ng c\u00f3 t\u00e1c d\u1ee5ng nhi\u1ec7t nh\u01b0 b\u00e0n \u1ee7i, l\u00f2 s\u01b0\u1edfi \u0111i\u1ec7n,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng t\u1eeb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 nh\u1eadn bi\u1ebft t\u00e1c d\u1ee5ng t\u1eeb c\u1ee7a \u0111i\u1ec7n xoay chi\u1ec1u b\u1ea1n ch\u1ec9 c\u1ea7n \u0111\u01b0a m\u1ed9t \u0111inh s\u1eaft l\u1ea1i g\u1ea7n cu\u1ed9n d\u00e2y, khi cu\u1ed9n d\u00e2y h\u00fat \u0111inh s\u1eaft, th\u00ec \u0111\u00e2y ch\u00ednh l\u00e0 bi\u1ec3u hi\u1ec7n c\u1ee7a t\u00e1c d\u1ee5ng t\u1eeb. Ngo\u00e0i ra, t\u00e1c d\u1ee5ng t\u1eeb c\u1ee7a cu\u1ed9n d\u00e2y l\u00ean nam ch\u00e2m c\u0169ng s\u1ebd thay \u0111\u1ed5i khi d\u00f2ng \u0111i\u1ec7n \u0111\u1ed5i chi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng sinh l\u00fd<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ee8ng d\u1ee5ng trong vi\u1ec7c th\u0103m kh\u00e1m v\u00e0 \u0111i\u1ec1u tr\u1ecb b\u1ec7nh t\u1eeb t\u00e1c d\u1ee5ng gi\u1eadt c\u1ee7a d\u00f2ng \u0111i\u1ec7n nh\u01b0: ch\u00e2m c\u1ee9u, k\u00edch tim\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng quang<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi t\u00e1c d\u1ee5ng n\u00e0y minh ch\u1ee9ng r\u00f5 n\u00e9t nh\u1ea5t ch\u00ednh l\u00e0 c\u00e1c lo\u1ea1i b\u00f3ng \u0111\u00e8n ph\u00e1t s\u00e1ng nh\u01b0 b\u00f3ng \u0111\u00e8n tr\u00ean b\u00fat th\u1eed \u0111i\u1ec7n, b\u00f3ng \u0111\u00e8n d\u00e2y t\u00f3c,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 kh\u00e1c c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb hi\u1ec7u d\u1ee5ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb hi\u1ec7u d\u1ee5ng l\u00e0 gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c \u0111o t\u1eeb c\u00e1c \u0111\u1ed3ng h\u1ed3, hi\u1ec3u \u0111\u01a1n gi\u1ea3n \u0111\u00e2y l\u00e0 gi\u00e1 tr\u1ecb \u0111i\u1ec7n \u00e1p ghi tr\u00ean gi\u1eafc c\u1eafm ngu\u1ed3n c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n th\u00ec ch\u00fang t\u00f4i c\u00f3 l\u1ea5y 1 v\u00ed d\u1ee5: Ngu\u1ed3n 220V AC m\u00e0 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb hi\u1ec7u d\u1ee5ng nh\u01b0ng th\u1ef1c t\u1ebf bi\u00ean \u0111\u1ed9 \u0111\u1ec9nh c\u1ee7a \u0111i\u1ec7n \u00e1p 220VAC s\u1ebd l\u00e0 220V x 1,4 l\u1ea7n = kho\u1ea3ng 300V.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, ng\u01b0\u1eddi ta th\u1ef1c hi\u1ec7n theo 2 c\u00e1ch \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch 1: Cho nam ch\u00e2m quay quanh cu\u1ed9n d\u00e2y d\u1eabn k\u00edn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch 2: Cho cu\u1ed9n d\u00e2y d\u1eabn quay trong t\u1eeb tr\u01b0\u1eddng ngh\u0129a l\u00e0 cho 1 cu\u1ed9n d\u00e2y k\u00edn quay quanh 1 tr\u1ee5c th\u1eb3ng \u0111\u1ee9ng trong t\u1eeb tr\u01b0\u1eddng c\u1ee7a nam ch\u00e2m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean t\u1eafc t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 d\u1ef1a v\u00e0o hi\u1ec7n t\u01b0\u1ee3ng c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u00e2n bi\u1ec7t d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u 1 pha v\u00e0 3 pha<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u 1 pha l\u00e0 g\u00ec? L\u00e0 d\u00f2ng trong m\u1ea1ch \u0111i\u1ec7n c\u00f3 hai d\u00e2y n\u1ed1i v\u1edbi ngu\u1ed3n \u0111i\u1ec7n \u00e1p. H\u01b0\u1edbng c\u1ee7a c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch AC s\u1ebd thay \u0111\u1ed5i d\u1ef1a theo t\u1ea7n s\u1ed1 c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n trong m\u1ea1ch. D\u00f2ng \u0111i\u1ec7n n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu trong h\u1ed9 gia \u0111\u00ecnh, c\u00f3 2 d\u00e2y \u0111\u00f3 l\u00e0 d\u00e2y pha v\u00e0 d\u00e2y trung t\u00ednh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec7n \u00e1p xoay chi\u1ec1u 3 pha l\u00e0 d\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u g\u1ea7n gi\u1ed1ng 3 \u0111\u01b0\u1eddng \u0111i\u1ec7n 1 pha ch\u1ea1y song song v\u1edbi nhau v\u00e0 c\u00f3 chung 1 d\u00e2y trung t\u00ednh. H\u1ec7 th\u1ed1ng \u0111i\u1ec7n hi\u1ec7n nay th\u01b0\u1eddng c\u00f3 4 d\u00e2y 3 d\u00e2y n\u00f3ng v\u00e0 1 d\u00e2y l\u1ea1nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c t\u00ednh d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u 3 pha l\u00e0 P= 3 \u00d7 pf \u00d7 I \u00d7 V<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P: C\u00f4ng su\u1ea5t d\u00f2ng \u0111i\u1ec7n (W)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I: D\u00f2ng \u0111i\u1ec7n (A).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V: \u0110i\u1ec7n \u00e1p \u0111\u01a1n v\u1ecb \u0111o l\u00e0 (V)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">pf: H\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t, th\u01b0\u1eddng s\u1ebd t\u1eeb kho\u1ea3ng 0.85 \u2013 1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi chuy\u1ec3n \u0111\u1ed5i t\u1eeb Kw sang Ampe, \u0111\u1ec3 t\u00ednh t\u1ed5ng c\u00f4ng su\u1ea5t b\u1eb1ng kW b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c sau I= P \/ (\u221a3 \u00d7 pf \u00d7 V)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ee8ng d\u1ee5ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo l\u00fd thuy\u1ebft c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u s\u1ebd thay \u0111\u1ed5i tu\u1ea7n ho\u00e0n theo th\u1eddi gian t\u1eeb d\u01b0\u01a1ng sang \u00e2m v\u00e0 ng\u01b0\u1ee3c l\u1ea1i n\u00ean \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong cu\u1ed9c s\u1ed1ng hi\u1ec7n nay, c\u1ee5 th\u1ec3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u 1 pha: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho sinh ho\u1ea1t trong gia \u0111\u00ecnh, c\u00f4ng su\u1ea5t thi\u1ebft b\u1ecb nh\u1ecf ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng hao ph\u00ed \u0111i\u1ec7n n\u0103ng nhi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u 3 pha: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu cho vi\u1ec7c truy\u1ec1n t\u1ea3i, x\u01b0\u1edfng s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f3 c\u00f4ng su\u1ea5t l\u1edbn, gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 ti\u00eau hao \u0111i\u1ec7n n\u0103ng s\u1eed d\u1ee5ng. M\u1ed9t trong nh\u1eefng thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c nhi\u1ec1u doanh nghi\u1ec7p l\u1ef1a ch\u1ecdn cho x\u00ed nghi\u1ec7p c\u1ee7a m\u00ecnh l\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n 3 pha \u0111\u1ec3 k\u1ebft h\u1ee3p v\u1edbi d\u00f2ng \u0111i\u1ec7n 3 pha. Vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y ph\u00e1t \u0111i\u1ec7n 3 pha v\u1edbi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u 3 pha s\u1ebd gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y m\u00f3c, ti\u1ebft ki\u1ec7m chi ph\u00ed c\u0169ng nh\u01b0 an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c nhau gi\u1eefa d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u v\u00e0 d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u l\u00e0 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng c\u00f3 s\u1ef1 thay \u0111\u1ed5i theo th\u1eddi gian v\u00e0 theo m\u1ed9t h\u01b0\u1edbng c\u1ed1 \u0111\u1ecbnh. D\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u v\u00e0 xoay chi\u1ec1u l\u00e0 kh\u00e1c nhau \u0111\u1ec3 ph\u00e2n bi\u1ec7t ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1ef1a v\u00e0o \u1ee9ng d\u1ee5ng c\u0169ng nh\u01b0 bi\u1ec3u hi\u1ec7n c\u1ee7a ch\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1edfi c\u00e1c thi\u1ebft b\u1ecb m\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u n\u00ean c\u00f3 kh\u1ea3 n\u0103ng v\u1eadn chuy\u1ec3n \u1edf c\u00e1c kho\u1ea3ng c\u00e1ch xa. V\u1eady n\u00ean c\u00e1c khu v\u1ef1c \u0111\u1ed3i n\u00fai v\u1eabn c\u00f3 l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng l\u1edbn \u0111\u1ec3 s\u1eed d\u1ee5ng. Ng\u01b0\u1ee3c l\u1ea1i, d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u ch\u1ec9 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb pin, \u1eafc quy hay n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi n\u00ean kh\u00f4ng th\u1ec3 truy\u1ec1n t\u1ea3i \u0111i xa, ti\u00eau t\u1ed1n r\u1ea5t nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea7n s\u1ed1 c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u th\u01b0\u1eddng l\u00e0 50Hz v\u00e0 60Hz trong khi d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u c\u00f3 t\u1ea7n s\u1ed1 tr\u1ef1c ti\u1ebfp b\u1eb1ng 0. Trong c\u00e1c b\u1ea3n v\u1ebd m\u1ea1ch \u0111i\u1ec7n, c\u00e1c d\u1ea1ng s\u00f3ng \u0111\u1ec1u bi\u1ec3u hi\u1ec7n d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u l\u00e0 \u0111\u01b0\u1eddng th\u1eb3ng trong khi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u1ea1i \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb phong ph\u00fa h\u01a1n l\u00e0 c\u00e1c d\u1ea1ng h\u00ecnh sin, tam gi\u00e1c,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi c\u00e1c th\u00f4ng tin tr\u00ean \u0111\u00e2y ch\u1eafc ch\u1eafn \u0111\u00e3 gi\u00fap b\u1ea1n tr\u1ea3 l\u1eddi \u0111\u01b0\u1ee3c c\u00e2u h\u1ecfi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec r\u1ed3i ch\u1ee9. N\u1ebfu th\u1ea5y b\u00e0i vi\u1ebft n\u00e0y h\u1eefu \u00edch b\u1ea1n h\u00e3y like, share \u0111\u1ec3 s\u1eed d\u1ee5ng khi c\u1ea7n nh\u00e9! N\u1ebfu c\u00f3 th\u1eafc m\u1eafc n\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 h\u00e3y comment ph\u00eda d\u01b0\u1edbi b\u00e0i vi\u1ebft ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i \u0111\u00e1p nhanh ch\u00f3ng v\u00e0 ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng quan tr\u1ecdng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn v\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu trong cu\u1ed9c s\u1ed1ng hi\u1ec7n nay, \u0111\u1ea3m b\u1ea3o cho s\u1ef1 t\u1ed3n t\u1ea1i v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a con ng\u01b0\u1eddi. M\u1eb7c d\u00f9 v\u1eady nh\u01b0ng kh\u00f4ng ph\u1ea3i ai c\u0169ng n\u1eafm ch\u1eafc c\u00e1c th\u00f4ng tin [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[7],"tags":[],"class_list":["post-3358","post","type-post","status-publish","format-standard","hentry","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/3358","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=3358"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/3358\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=3358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=3358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=3358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}