{"id":13849650,"date":"2024-03-18T06:46:21","date_gmt":"2024-03-18T06:46:21","guid":{"rendered":"https:\/\/yp.vn\/?p=13849650"},"modified":"2024-03-18T06:46:21","modified_gmt":"2024-03-18T06:46:21","slug":"dong-co-dien-khong-dong-bo-la-gi-cau-tao-va-nguyen-ly-lam-viec","status":"publish","type":"post","link":"https:\/\/yp.vn\/dong-co-dien-khong-dong-bo-la-gi-cau-tao-va-nguyen-ly-lam-viec\/","title":{"rendered":"\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9 l\u00e0 g\u00ec ? c\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c"},"content":{"rendered":"<p>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9 l\u00e0 m\u00e1y \u0111i\u1ec7n xoay chi\u1ec1u, l\u00e0m vi\u1ec7c theo nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, c\u00f3 t\u1ed1c \u0111\u1ed9 c\u1ee7a rotor n kh\u00e1c v\u1edbi t\u1ed1c \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng quay trong m\u00e1y n. <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/dong-co-dien-san-xuat-va-buon-ban-570\/\"><strong>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n<\/strong><\/a> kh\u00f4ng \u0111\u1ed3ng b\u1ed9 c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c \u1edf hai ch\u1ebf \u0111\u1ed9: \u0111\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t.<\/p>\n<h2><span id=\"phan-loai-may-dien-khong-dong-bo\" class=\"ez-toc-section\"><\/span><strong>Ph\u00e2n lo\u1ea1i \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/strong><\/h2>\n<p><strong>Khi ph\u00e2n lo\u1ea1i \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9, c\u00f3 th\u1ec3 c\u0103n c\u1ee9 theo:<\/strong><\/p>\n<ul>\n<li>Theo k\u1ebft c\u1ea5u c\u1ee7a v\u1ecf, c\u00f3 th\u1ec3 chia l\u00e0m c\u00e1c lo\u1ea1i: ki\u1ec3u h\u1edf, ki\u1ec3u b\u1ea3o v\u1ec7, ki\u1ec3u k\u00edn, ki\u1ec3u ch\u1ed1ng n\u1ed5, ki\u1ec3u ch\u1ed1ng rung\u2026<\/li>\n<li>Theo k\u1ebft c\u1ea5u c\u1ee7a rotor chia l\u00e0m hai lo\u1ea1i: ki\u1ec3u rotor d\u00e2y qu\u1ea5n v\u00e0 ki\u1ec3u rotor l\u1ed3ng s\u00f3c.<\/li>\n<li>Theo s\u1ed1 pha: ki\u1ec3u m\u1ed9t pha, hai pha, ba pha.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13849651 size-full\" src=\"https:\/\/yp.vn\/wp-content\/uploads\/2024\/03\/1a-6.jpg\" alt=\"\" width=\"676\" height=\"362\" srcset=\"https:\/\/yp.vn\/wp-content\/uploads\/2024\/03\/1a-6.jpg 676w, https:\/\/yp.vn\/wp-content\/uploads\/2024\/03\/1a-6-300x161.jpg 300w\" sizes=\"auto, (max-width: 676px) 100vw, 676px\" \/><\/p>\n<h2><span id=\"cau-tao-may-dien-khong-dong-bo\" class=\"ez-toc-section\"><\/span><strong>C\u1ea5u t\u1ea1o \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/strong><\/h2>\n<p>C\u1ea5u t\u1ea1o c\u1ee7a <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/dong-co-dien-san-xuat-va-buon-ban-570\/\"><strong>\u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n<\/strong><\/a> kh\u00f4ng \u0111\u1ed3ng b\u1ed9 bao g\u1ed3m hai b\u1ed9 ph\u1eadn ch\u1ee7 y\u1ebfu l\u00e0 stator v\u00e0 rotor, ngo\u00e0i ra c\u00f2n c\u00f3 v\u1ecf m\u00e1y, n\u1eafp m\u00e1y v\u00e0 tr\u1ee5c m\u00e1y. Tr\u1ee5c l\u00e0m b\u1eb1ng th\u00e9p, tr\u00ean \u0111\u00f3 g\u1eafn rotor, \u1ed5 b\u1ecb v\u00e0 ph\u00eda cu\u1ed1i tr\u1ee5c c\u00f3 g\u1eafn m\u1ed9t qu\u1ea1t gi\u00f3 \u0111\u1ec3 l\u00e0m m\u00e1t m\u00e1y d\u1ecdc tr\u1ee5c.<\/p>\n<h3><strong>Stator<\/strong><\/h3>\n<p>Stator (ph\u1ea7n t\u0129nh) g\u1ed3m hai b\u1ed9 ph\u1eadn ch\u00ednh l\u00e0 l\u00f5i th\u00e9p v\u00e0 d\u00e2y qu\u1ea5n, ngo\u00e0i ra c\u00f2n c\u00f3 v\u1ecf m\u00e1y v\u00e0 n\u1eafp m\u00e1y.<\/p>\n<p><strong>L\u00f5i th\u00e9p<\/strong><\/p>\n<p>L\u00f5i th\u00e9p stator c\u00f3 d\u1ea1ng h\u00ecnh tr\u1ee5, l\u00e0m b\u1eb1ng c\u00e1c l\u00e1 th\u00e9p k\u1ef9 thu\u1eadt \u0111i\u1ec7n, \u0111\u01b0\u1ee3c d\u1eadp r\u00e3nh b\u00ean trong r\u1ed3i gh\u00e9p l\u1ea1i v\u1edbi nhau t\u1ea1o th\u00e0nh c\u00e1c r\u00e3nh theo h\u01b0\u1edbng tr\u1ee5c. L\u00f5i th\u00e9p \u0111\u01b0\u1ee3c \u00e9p v\u00e0o trong v\u1ecf m\u00e1y.<\/p>\n<p><strong>D\u00e2y qu\u1ea5n stator<\/strong><\/p>\n<p>D\u00e2y qu\u1ea5n stator th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng d\u00e2y \u0111\u1ed3ng c\u00f3 b\u1ecdc c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111\u1eb7t trong c\u00e1c ranh c\u1ee7a l\u00f5i th\u00e9p. D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u ba pha ch\u1ea1y trong d\u00e2y qu\u1ea5n ba pha stator s\u1ebd t\u1ea1o n\u00ean t\u1eeb tr\u01b0\u1eddng quay.<\/p>\n<p><strong>V\u00f5 m\u00e1y<\/strong><\/p>\n<p>V\u1ecf m\u00e1y bao g\u1ed3m c\u00f3 th\u00e2n v\u00e0 n\u1eafp, th\u01b0\u1eddng l\u00e0m b\u1eb1ng gang.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13849652 size-full\" src=\"https:\/\/yp.vn\/wp-content\/uploads\/2024\/03\/2a-6.jpg\" alt=\"\" width=\"639\" height=\"364\" srcset=\"https:\/\/yp.vn\/wp-content\/uploads\/2024\/03\/2a-6.jpg 639w, https:\/\/yp.vn\/wp-content\/uploads\/2024\/03\/2a-6-300x171.jpg 300w\" sizes=\"auto, (max-width: 639px) 100vw, 639px\" \/><\/p>\n<h3><span id=\"roto\" class=\"ez-toc-section\"><\/span><strong>Roto<\/strong><\/h3>\n<p>Roto l\u00e0 ph\u1ea7n quay g\u1ed3m l\u00f5i th\u00e9p, d\u00e2y qu\u1ea5n v\u00e0 tr\u1ee5c m\u00e1y.<\/p>\n<p><strong>L\u00f5i th\u00e9p<\/strong><\/p>\n<p>L\u00f5i th\u00e9p rotor g\u1ed3m c\u00e1c l\u00e1 th\u00e9p k\u1ef9 thu\u1eadt \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb ph\u1ea7n b\u00ean trong c\u1ee7a l\u00f5i th\u00e9p stator gh\u00e9p l\u1ea1i, m\u1eb7t ngo\u00e0i d\u1eadp r\u00e3nh \u0111\u1ec3 \u0111\u1eb7t d\u00e2y qu\u1ea5n, \u1edf gi\u1eefa c\u00f3 d\u1eadp l\u1ed7 \u0111\u1ec3 l\u1eafp tr\u1ee5c.<\/p>\n<p><strong>Tr\u1ee5c<\/strong><\/p>\n<p>Tr\u1ee5c c\u1ee7a <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/dong-co-dien-san-xuat-va-buon-ban-570\/\"><strong>\u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n<\/strong><\/a> kh\u00f4ng \u0111\u1ed3ng b\u1ed9 l\u00e0m b\u1eb1ng th\u00e9p, tr\u00ean \u0111\u00f3 g\u1eafn l\u00f5i th\u00e9p roto.<\/p>\n<p><strong>D\u00e2y qu\u1ea5n rotor<\/strong><\/p>\n<p>D\u00e2y qu\u1ea5n rotor c\u1ee7a <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/dong-co-dien-san-xuat-va-buon-ban-570\/\"><strong>\u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n<\/strong><\/a> kh\u00f4ng \u0111\u1ed3ng b\u1ed9 c\u00f3 hai ki\u1ec3u: rotor ng\u1eafn m\u1ea1ch c\u00f2n g\u1ecdi l\u00e0 rotor l\u1ed3ng s\u00f3c v\u00e0 rotor d\u00e2y qu\u1ea5n.<\/p>\n<p><strong>Rotor l\u1ed3ng s\u00f3c<\/strong>\u00a0g\u1ed3m c\u00e1c thanh \u0111\u1ed3ng ho\u1eb7c thanh nh\u00f4m \u0111\u1eb7t trong r\u00e3nh v\u00e0 b\u1ecb ng\u1eafn m\u1ea1ch b\u1edfi hai v\u00e0nh ng\u1eafn m\u1ea1ch \u1edf hai \u0111\u1ea7u. V\u1edbi \u0111\u1ed9ng c\u01a1 nh\u1ecf, d\u00e2y qu\u1ea5n rotor \u0111\u01b0\u1ee3c \u0111\u00fac nguy\u00ean kh\u1ed1i g\u1ed3m thanh d\u1eabn, v\u00e0nh ng\u1eafn m\u1ea1ch, c\u00e1nh t\u1ea3n nhi\u1ec7t v\u00e0 c\u00e1nh qu\u1ea1t l\u00e0m m\u00e1t. C\u00e1c \u0111\u1ed9ng c\u01a1 c\u00f4ng su\u1ea5t tr\u00ean 100kW thanh d\u1eabn l\u00e0m b\u1eb1ng \u0111\u1ed3ng \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u00e0o c\u00e1c r\u00e3nh rotor v\u00e0 g\u1eafn ch\u1eb7t v\u00e0o v\u00e0nh ng\u1eafn m\u1ea1ch.<\/p>\n<p><strong>Rotor d\u00e2y qu\u1ea5n<\/strong>\u00a0c\u0169ng qu\u1ea5n gi\u1ed1ng nh\u01b0 d\u00e2y qu\u1ea5n ba pha stator v\u00e0 c\u00f3 c\u00f9ng s\u1ed1 c\u1ef1c t\u1eeb nh\u01b0 d\u00e2y qu\u1ea5n stator. D\u00e2y qu\u1ea5n ki\u1ec3u n\u00e0y lu\u00f4n lu\u00f4n \u0111\u1ea5u sao (Y) v\u00e0 c\u00f3 ba \u0111\u1ea7u ra \u0111\u1ea5u v\u00e0o ba v\u00e0nh tr\u01b0\u1ee3t, g\u1eafn v\u00e0o tr\u1ee5c quay c\u1ee7a rotor v\u00e0 c\u00e1ch \u0111i\u1ec7n v\u1edbi tr\u1ee5c. Ba ch\u1ed5i than c\u1ed1 \u0111\u1ecbnh v\u00e0 lu\u00f4n t\u1ef3 tr\u00ean v\u00e0nh tr\u01b0\u1ee3t n\u00e0y \u0111\u1ec3 d\u1eabn \u0111i\u1ec7n v\u00e0o m\u1ed9t bi\u1ebfn tr\u1edf c\u0169ng n\u1ed1i sao n\u1eb1m ngo\u00e0i \u0111\u1ed9ng c\u01a1 \u0111\u1ec3 kh\u1edfi \u0111\u1ed9ng ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9.<\/p>\n<h2><strong>Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/strong><\/h2>\n<p>Khi c\u00f3 d\u00f2ng \u0111i\u1ec7n ba pha ch\u1ea1y trong d\u00e2y qu\u1ea5n stato th\u00ec trong khe h\u1edf kh\u00f4ng kh\u00ed xu\u1ea5t hi\u1ec7n t\u1eeb tr\u01b0\u1eddng quay v\u1edbi t\u1ed1c \u0111\u1ed9 n = 60f\/p (f l\u00e0 t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n; p l\u00e0 s\u1ed1 \u0111\u1ed9i c\u1ef1c t\u1eeb c\u1ee7a m\u00e1y; n l\u00e0 t\u1ed1c \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng quay b\u1eadc m\u1ed9t) T\u1eeb tr\u01b0\u1eddng n\u00e0y qu\u00e9t qua d\u00e2y qu\u1ea5n nhi\u1ec1u pha t\u1ef1 ng\u1eafn m\u1ea1ch \u0111\u1eb7t tr\u00ean l\u00f5i s\u1eaft roto, l\u00e0m c\u1ea3m \u1ee9ng trong d\u00e2y qu\u1ea5n roto c\u00e1c s\u1ee9c \u0111i\u1ec7n \u0111\u1ed9ng E,. Do roto k\u00edn m\u1ea1ch n\u00ean trong d\u00e2y qu\u1ea5n roto c\u00f3 d\u00f2ng \u0111i\u1ec7n I, ch\u1ea1y qua. T\u1eeb th\u00f4ng do d\u00f2ng \u0111i\u1ec7n n\u00e0y sinh ra h\u1ee3p v\u1edbi t\u1eeb th\u00f4ng c\u1ee7a stato t\u1ea1o th\u00e0nh t\u1eeb th\u00f4ng t\u1ed1ng \u1edf khe h\u1edf. D\u00f2ng \u0111i\u1ec7n trong d\u00e2y qu\u1ea5n roto t\u00e1c d\u1ee5ng v\u1edbi t\u1eeb th\u00f4ng khe h\u1edf sinh ra m\u00f4 men. T\u00e1c d\u1ee5ng \u0111\u00f3 c\u00f3 quan h\u1ec7 m\u1eadt thi\u1ebft v\u1edbi t\u1ed1c \u0111\u1ed9 quay n c\u1ee7a roto. Trong nh\u1eefng ph\u1ea1m vi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau th\u00ec ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a m\u00e1y c\u0169ng kh\u00e1c nhau. Sau \u0111\u00e2y ta s\u1ebd nghi\u00ean c\u1ee9u t\u00e1c d\u1ee5ng c\u1ee7a ch\u00fang trong ba ph\u1ea1m vi t\u1ed1c \u0111\u1ed9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9 l\u00e0 m\u00e1y \u0111i\u1ec7n xoay chi\u1ec1u, l\u00e0m vi\u1ec7c theo nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, c\u00f3 t\u1ed1c \u0111\u1ed9 c\u1ee7a rotor n kh\u00e1c v\u1edbi t\u1ed1c \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng quay trong m\u00e1y n. \u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9 c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c \u1edf hai ch\u1ebf \u0111\u1ed9: \u0111\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t&#8230;. <a class=\"view-article\" href=\"https:\/\/yp.vn\/dong-co-dien-khong-dong-bo-la-gi-cau-tao-va-nguyen-ly-lam-viec\/\">Xem b\u00e0i vi\u1ebft<\/a><\/p>\n","protected":false},"author":3,"featured_media":13849653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[3573],"tags":[],"class_list":["post-13849650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dong-co-dien"],"acf":[],"_links":{"self":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/13849650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/comments?post=13849650"}],"version-history":[{"count":0,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/13849650\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media\/13849653"}],"wp:attachment":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media?parent=13849650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/categories?post=13849650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/tags?post=13849650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}