上海(hai)穎達機(ji)(ji)電(dian)(dian)(dian)工業設備(bei)有(you)限公司小編介紹，三相(xiang)異(yi)步(bu)電(dian)(dian)(dian)動機(ji)(ji)指繞(rao)(rao)組(zu)(zu)與鐵心或與機(ji)(ji)殼(ke)絕(jue)(jue)緣破壞(huai)而(er)造成的(de)接地。1、故障現象(xiang)：機(ji)(ji)殼(ke)帶電(dian)(dian)(dian)、控制線路(lu)失(shi)控、繞(rao)(rao)組(zu)(zu)短路(lu)發熱，致使(shi)電(dian)(dian)(dian)動機(ji)(ji)無法正常運(yun)行。2、產生原因：繞(rao)(rao)組(zu)(zu)受潮使(shi)絕(jue)(jue)緣電(dian)(dian)(dian)阻下降(jiang)；電(dian)(dian)(dian)動機(ji)(ji)長期過(guo)(guo)載運(yun)行；有(you)害氣體腐(fu)蝕；金屬異(yi)物侵入繞(rao)(rao)組(zu)(zu)內(nei)部(bu)損壞(huai)絕(jue)(jue)緣；重繞(rao)(rao)定子繞(rao)(rao)組(zu)(zu)時絕(jue)(jue)緣損壞(huai)碰鐵心；繞(rao)(rao)組(zu)(zu)端部(bu)碰端蓋機(ji)(ji)座；定、轉子磨擦引(yin)起絕(jue)(jue)緣灼(zhuo)傷(shang)；引(yin)出線絕(jue)(jue)緣損壞(huai)與殼(ke)體相(xiang)碰；過(guo)(guo)電(dian)(dian)(dian)壓（如(ru)雷(lei)擊(ji)）使(shi)絕(jue)(jue)緣擊(ji)穿。三相(xiang)異(yi)步(bu)電(dian)(dian)(dian)動機(ji)(ji)能的(de)遠距離輸送簡便(bian)(bian)經濟，分(fen)配(pei)簡單，檢側方便(bian)(bian)，價(jia)格低廉(lian)。成都(dou)變(bian)頻三相(xiang)異(yi)步(bu)電(dian)(dian)(dian)動機(ji)(ji)價(jia)格

三相異步電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)常見問題分析：電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)空載，過(guo)(guo)(guo)負載時，電(dian)(dian)(dian)流表指針不(bu)穩，擺動(dong)(dong)(dong)(dong)，故(gu)障(zhang)原因(yin)：a）籠型(xing)轉(zhuan)子(zi)導條(tiao)開焊或(huo)斷(duan)條(tiao)；b）繞線型(xing)轉(zhuan)子(zi)故(gu)障(zhang)（一相斷(duan)路）或(huo)電(dian)(dian)(dian)刷、集(ji)電(dian)(dian)(dian)環短路裝置(zhi)接觸(chu)不(bu)良(liang)。運行中電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)振動(dong)(dong)(dong)(dong)較大，故(gu)障(zhang)原因(yin)：a）由于磨損(sun)軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)間(jian)隙(xi)過(guo)(guo)(guo)大；b）氣(qi)隙(xi)不(bu)均勻(yun)；c）轉(zhuan)子(zi)不(bu)平衡；d）軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)彎曲；e）鐵芯(xin)變形或(huo)松(song)動(dong)(dong)(dong)(dong)；f）風扇(shan)不(bu)平衡；g）機(ji)(ji)殼或(huo)基(ji)礎(chu)強度不(bu)夠；h）電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)地(di)腳(jiao)螺絲松(song)動(dong)(dong)(dong)(dong)。軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)過(guo)(guo)(guo)熱，故(gu)障(zhang)原因(yin)：a）油脂過(guo)(guo)(guo)多(duo)或(huo)過(guo)(guo)(guo)少；b）油質不(bu)好含有雜質；c）軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)與(yu)軸(zhou)(zhou)(zhou)(zhou)頸或(huo)端(duan)蓋配合不(bu)當（過(guo)(guo)(guo)松(song)或(huo)過(guo)(guo)(guo)緊(jin)）；d）軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)內孔偏心，與(yu)軸(zhou)(zhou)(zhou)(zhou)相擦；e）電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)端(duan)蓋或(huo)軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)端(duan)蓋未平；f）電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)與(yu)負載間(jian)聯軸(zhou)(zhou)(zhou)(zhou)器未校正，或(huo)皮帶過(guo)(guo)(guo)緊(jin)；g）軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)間(jian)隙(xi)過(guo)(guo)(guo)大或(huo)過(guo)(guo)(guo)小(xiao)；h）電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)彎曲。礦用防爆型(xing)三相異步電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)代理(li)三相異步電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)拖(tuo)動(dong)(dong)(dong)(dong)的(de)起動(dong)(dong)(dong)(dong)、制動(dong)(dong)(dong)(dong)、反向與(yu)調(diao)速(su)等控制簡(jian)便迅速(su)，調(diao)速(su)性能(neng)良(liang)好。

鏈(lian)式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)是由具(ju)有相同(tong)形(xing)狀和(he)寬度的(de)單(dan)(dan)層(ceng)線(xian)圈(quan)(quan)(quan)元件所組(zu)(zu)(zu)(zu)成，因其繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)端(duan)部各(ge)個線(xian)圈(quan)(quan)(quan)像套起的(de)鏈(lian)環一樣而得(de)名。單(dan)(dan)層(ceng)鏈(lian)式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)應特別(bie)注(zhu)意的(de)是其線(xian)圈(quan)(quan)(quan)節距必須為(wei)(wei)奇數(shu)(shu)(shu)，否則該繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)將無法排(pai)列布置。交叉(cha)鏈(lian)式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)當(dang)每極(ji)(ji)每相槽數(shu)(shu)(shu)9為(wei)(wei)大(da)于(yu)2的(de)奇數(shu)(shu)(shu)時鏈(lian)式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)將無法排(pai)列布置，此時就需要采用(yong)(yong)具(ju)有單(dan)(dan)、雙(shuang)線(xian)圈(quan)(quan)(quan)的(de)交叉(cha)式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)。同(tong)心式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)在同(tong)一極(ji)(ji)相組(zu)(zu)(zu)(zu)內的(de)所有線(xian)圈(quan)(quan)(quan)圍抱同(tong)一圓心。當(dang)每級每相槽數(shu)(shu)(shu)Q為(wei)(wei)大(da)于(yu)2的(de)偶(ou)數(shu)(shu)(shu)時則可采取同(tong)心式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的(de)形(xing)式(shi)(shi)。單(dan)(dan)層(ceng)同(tong)心繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)和(he)交叉(cha)同(tong)心式(shi)(shi)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的(de)優(you)點(dian)為(wei)(wei)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的(de)繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)線(xian)、嵌線(xian)較為(wei)(wei)簡單(dan)(dan)，缺點(dian)則為(wei)(wei)線(xian)圈(quan)(quan)(quan)端(duan)部過長耗(hao)用(yong)(yong)導線(xian)過多。現除偶(ou)有用(yong)(yong)在小容量(liang)2極(ji)(ji)、4極(ji)(ji)電動機中以外，如今已很少采用(yong)(yong)這種繞(rao)(rao)(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)形(xing)式(shi)(shi)。

三(san)(san)相(xiang)異步電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)工(gong)作(zuo)原理：當電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)的三(san)(san)相(xiang)定子(zi)繞組(zu)（各相(xiang)差120度電(dian)(dian)(dian)(dian)(dian)角度），通(tong)入三(san)(san)相(xiang)對稱(cheng)交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)后(hou)，將產生一(yi)個旋(xuan)(xuan)轉(zhuan)磁(ci)場(chang)，該(gai)旋(xuan)(xuan)轉(zhuan)磁(ci)場(chang)切割轉(zhuan)子(zi)繞組(zu)，從而在轉(zhuan)子(zi)繞組(zu)中產生感應(ying)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)（轉(zhuan)子(zi)繞組(zu)是閉合通(tong)路(lu)），載流(liu)(liu)的轉(zhuan)子(zi)導體在定子(zi)旋(xuan)(xuan)轉(zhuan)磁(ci)場(chang)作(zuo)用(yong)(yong)下將產生電(dian)(dian)(dian)(dian)(dian)磁(ci)力，從而在電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)轉(zhuan)軸(zhou)上形成電(dian)(dian)(dian)(dian)(dian)磁(ci)轉(zhuan)矩，驅動電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)旋(xuan)(xuan)轉(zhuan)，并(bing)且電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)旋(xuan)(xuan)轉(zhuan)方(fang)向與(yu)旋(xuan)(xuan)轉(zhuan)磁(ci)場(chang)方(fang)向相(xiang)同。按電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)使用(yong)(yong)環境分類：可分為(wei)普通(tong)型(xing)、濕熱型(xing)、干(gan)熱型(xing)、船用(yong)(yong)型(xing)、化工(gong)型(xing)、高(gao)原型(xing)和戶外型(xing)。三(san)(san)相(xiang)異步電(dian)(dian)(dian)(dian)(dian)動機(ji)(ji)的潤滑方(fang)式包括(kuo)油潤滑、脂潤滑、干(gan)潤滑等。

三(san)相(xiang)異(yi)(yi)步(bu)(bu)電動(dong)(dong)(dong)(dong)(dong)機是一(yi)種(zhong)常(chang)見的(de)(de)(de)(de)交(jiao)流電機類(lei)型，其結構簡(jian)單、可靠性高、使(shi)用壽命長，普(pu)遍應用于各種(zhong)工業和(he)民(min)用領域。它的(de)(de)(de)(de)名(ming)稱(cheng)中(zhong)“異(yi)(yi)步(bu)(bu)”指的(de)(de)(de)(de)是轉(zhuan)(zhuan)(zhuan)子(zi)(zi)轉(zhuan)(zhuan)(zhuan)速(su)與旋轉(zhuan)(zhuan)(zhuan)磁(ci)場的(de)(de)(de)(de)旋轉(zhuan)(zhuan)(zhuan)速(su)度不同，是一(yi)種(zhong)感應電動(dong)(dong)(dong)(dong)(dong)機。三(san)相(xiang)異(yi)(yi)步(bu)(bu)電動(dong)(dong)(dong)(dong)(dong)機的(de)(de)(de)(de)主(zhu)要構成(cheng)部(bu)(bu)分包括(kuo)(kuo)定(ding)子(zi)(zi)和(he)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)兩(liang)部(bu)(bu)分。定(ding)子(zi)(zi)上繞(rao)有三(san)相(xiang)對稱(cheng)的(de)(de)(de)(de)線圈(quan)，接(jie)通(tong)(tong)三(san)相(xiang)電源后，線圈(quan)中(zhong)產(chan)生(sheng)的(de)(de)(de)(de)旋轉(zhuan)(zhuan)(zhuan)磁(ci)場會驅(qu)動(dong)(dong)(dong)(dong)(dong)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)。轉(zhuan)(zhuan)(zhuan)子(zi)(zi)由(you)導(dao)體(ti)棒(bang)(bang)(bang)或導(dao)體(ti)箔組成(cheng)，常(chang)用的(de)(de)(de)(de)類(lei)型有鼠籠(long)式(shi)和(he)渦流式(shi)兩(liang)種(zhong)。鼠籠(long)式(shi)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)由(you)許多平行(xing)(xing)的(de)(de)(de)(de)導(dao)體(ti)棒(bang)(bang)(bang)組成(cheng)，導(dao)體(ti)棒(bang)(bang)(bang)兩(liang)端接(jie)通(tong)(tong)短路環，形狀(zhuang)像一(yi)只(zhi)倒立的(de)(de)(de)(de)鼠籠(long)，因此得名(ming)。在(zai)電機運行(xing)(xing)時，由(you)于感應電動(dong)(dong)(dong)(dong)(dong)勢(shi)的(de)(de)(de)(de)作(zuo)用，導(dao)體(ti)棒(bang)(bang)(bang)中(zhong)會產(chan)生(sheng)電流，從而(er)在(zai)導(dao)體(ti)棒(bang)(bang)(bang)中(zhong)產(chan)生(sheng)磁(ci)場，受到旋轉(zhuan)(zhuan)(zhuan)磁(ci)場的(de)(de)(de)(de)作(zuo)用，轉(zhuan)(zhuan)(zhuan)子(zi)(zi)開始轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)。三(san)相(xiang)異(yi)(yi)步(bu)(bu)電動(dong)(dong)(dong)(dong)(dong)機的(de)(de)(de)(de)故障包括(kuo)(kuo)電氣故障、機械(xie)故障和(he)潤(run)滑(hua)故障等，需要及時進行(xing)(xing)維修(xiu)和(he)更換(huan)。礦用防爆型三(san)相(xiang)異(yi)(yi)步(bu)(bu)電動(dong)(dong)(dong)(dong)(dong)機代理

三相異步(bu)電(dian)動機的(de)效率通(tong)常在(zai)80%以(yi)上，可以(yi)通(tong)過優化設計和控制來提高效率。成都(dou)變頻三相異步(bu)電(dian)動機價格

線徑(jing)截(jie)面(mian)積計(ji)算(suan)公(gong)式：截(jie)面(mian)積S=直徑(jing)的(de)平(ping)方乘以0.785，電(dian)(dian)(dian)機(ji)(ji)的(de)內(nei)部連接(jie)有(you)(you)顯極和庶極之分，顯極和庶極連接(jie)是由電(dian)(dian)(dian)機(ji)(ji)的(de)設計(ji)屬性(xing)決定的(de)。電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)應(ying)妥善接(jie)地(di)，接(jie)線盒(he)內(nei)右下方有(you)(you)接(jie)地(di)螺(luo)(luo)釘，必要時(shi)也可利(li)用(yong)(yong)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的(de)底腳或法蘭盤固(gu)定螺(luo)(luo)栓接(jie)地(di)。電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)銘(ming)牌上有(you)(you)規(gui)定的(de)星形(xing)聯(lian)(lian)結和三(san)(san)角形(xing)聯(lian)(lian)結，我國3kW以下電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)采用(yong)(yong)星形(xing)聯(lian)(lian)結，3kW以上電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)采用(yong)(yong)三(san)(san)角形(xing)聯(lian)(lian)結，不能接(jie)錯(cuo)。電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)一般應(ying)配有(you)(you)故障(zhang)保護(hu)裝(zhuang)(zhuang)置(zhi)，如熱(re)保護(hu)裝(zhuang)(zhuang)置(zhi)、電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)電(dian)(dian)(dian)子保護(hu)器等，并根據電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)銘(ming)牌電(dian)(dian)(dian)流調(diao)整(zheng)(zheng)保護(hu)裝(zhuang)(zhuang)置(zhi)的(de)整(zheng)(zheng)定值選擇。如電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)負載較穩定，為了更好地(di)保護(hu)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)，可按電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的(de)實際工(gong)作電(dian)(dian)(dian)流來調(diao)整(zheng)(zheng)保護(hu)裝(zhuang)(zhuang)置(zhi)的(de)整(zheng)(zheng)定值。電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的(de)實際工(gong)作電(dian)(dian)(dian)流可在電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)負載運(yun)轉時(shi)，用(yong)(yong)鉗形(xing)電(dian)(dian)(dian)流表直接(jie)測定。成(cheng)都變頻三(san)(san)相異步電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)價格

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