三(san)相異(yi)步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)各部分說明：①外殼(ke)，三(san)相異(yi)步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)的(de)(de)外殼(ke)主要(yao)由機(ji)(ji)(ji)座、軸承蓋、端蓋、接線(xian)盒、風扇和(he)(he)罩殼(ke)等(deng)組(zu)成(cheng)。②定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)，定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)有(you)(you)定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)鐵(tie)芯(xin)和(he)(he)定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)繞組(zu)組(zu)成(cheng)。a、定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)鐵(tie)芯(xin)。定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)鐵(tie)芯(xin)通常由很(hen)多(duo)圓環狀的(de)(de)硅鋼(gang)片疊合在(zai)(zai)一(yi)起組(zu)成(cheng)，這些硅鋼(gang)片中間開有(you)(you)很(hen)多(duo)小槽(cao)用于嵌入定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)繞組(zu)（也稱(cheng)定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)線(xian)圈），硅鋼(gang)片上涂有(you)(you)絕(jue)緣(yuan)(yuan)層(ceng)，使疊片之間絕(jue)緣(yuan)(yuan)。b、定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)繞組(zu)。它通常由涂有(you)(you)絕(jue)緣(yuan)(yuan)漆的(de)(de)銅線(xian)繞制(zhi)(zhi)而成(cheng)，再將繞制(zhi)(zhi)好的(de)(de)銅線(xian)按(an)一(yi)定(ding)(ding)(ding)(ding)的(de)(de)規(gui)律嵌入定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)鐵(tie)芯(xin)的(de)(de)小槽(cao)內(nei)，具體(ti)放(fang)大部分。三(san)相異(yi)步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)的(de)(de)電(dian)(dian)機(ji)(ji)(ji)轉子(zi)(zi)(zi)和(he)(he)定(ding)(ding)(ding)(ding)子(zi)(zi)(zi)之間的(de)(de)磁場需要(yao)控制(zhi)(zhi)在(zai)(zai)適當范圍內(nei)，以保證(zheng)電(dian)(dian)機(ji)(ji)(ji)性能和(he)(he)壽命。小型(xing)三(san)相異(yi)步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)規(gui)格

三相(xiang)(xiang)異步電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)是(shi)一種常見的(de)(de)交流電(dian)(dian)(dian)(dian)(dian)機(ji)類(lei)型，其(qi)結構簡(jian)單、可靠性高、使用(yong)壽命長，普遍應(ying)用(yong)于各種工業(ye)和(he)民(min)用(yong)領域。它(ta)的(de)(de)名(ming)(ming)稱中(zhong)“異步”指的(de)(de)是(shi)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)轉(zhuan)(zhuan)(zhuan)速(su)與旋轉(zhuan)(zhuan)(zhuan)磁場(chang)的(de)(de)旋轉(zhuan)(zhuan)(zhuan)速(su)度不同，是(shi)一種感應(ying)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)。三相(xiang)(xiang)異步電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)的(de)(de)主要構成部(bu)分包括定(ding)子(zi)(zi)(zi)和(he)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)兩(liang)部(bu)分。定(ding)子(zi)(zi)(zi)上繞有(you)三相(xiang)(xiang)對(dui)稱的(de)(de)線圈(quan)，接通三相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)源后，線圈(quan)中(zhong)產生的(de)(de)旋轉(zhuan)(zhuan)(zhuan)磁場(chang)會驅動(dong)(dong)(dong)(dong)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)。轉(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)由(you)導(dao)體棒或導(dao)體箔(bo)組成，常用(yong)的(de)(de)類(lei)型有(you)鼠(shu)籠式(shi)(shi)和(he)渦流式(shi)(shi)兩(liang)種。鼠(shu)籠式(shi)(shi)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)由(you)許多(duo)平行的(de)(de)導(dao)體棒組成，導(dao)體棒兩(liang)端接通短路環，形狀像一只倒(dao)立的(de)(de)鼠(shu)籠，因此得(de)名(ming)(ming)。在電(dian)(dian)(dian)(dian)(dian)機(ji)運行時，由(you)于感應(ying)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)勢的(de)(de)作(zuo)用(yong)，導(dao)體棒中(zhong)會產生電(dian)(dian)(dian)(dian)(dian)流，從而(er)在導(dao)體棒中(zhong)產生磁場(chang)，受到旋轉(zhuan)(zhuan)(zhuan)磁場(chang)的(de)(de)作(zuo)用(yong)，轉(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)開(kai)始轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)。哈爾濱三相(xiang)(xiang)異步電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)什么牌子(zi)(zi)(zi)好(hao)三相(xiang)(xiang)異步電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)拖動(dong)(dong)(dong)(dong)的(de)(de)起動(dong)(dong)(dong)(dong)、制動(dong)(dong)(dong)(dong)、反向與調(diao)速(su)等控制簡(jian)便迅速(su)，調(diao)速(su)性能(neng)良好(hao)。

鏈(lian)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)是由具有(you)相(xiang)同(tong)(tong)形狀(zhuang)和(he)寬度的(de)單(dan)層(ceng)(ceng)線(xian)(xian)(xian)圈(quan)元(yuan)件所組(zu)(zu)(zu)成，因其(qi)(qi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)端(duan)部各個線(xian)(xian)(xian)圈(quan)像(xiang)套(tao)起的(de)鏈(lian)環一(yi)樣而(er)得名(ming)。單(dan)層(ceng)(ceng)鏈(lian)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)應特別注意(yi)的(de)是其(qi)(qi)線(xian)(xian)(xian)圈(quan)節距必須為(wei)(wei)奇數(shu)(shu)，否則該繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)將(jiang)無(wu)法排列布(bu)置。交(jiao)叉(cha)(cha)鏈(lian)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)當每(mei)極每(mei)相(xiang)槽數(shu)(shu)9為(wei)(wei)大于2的(de)奇數(shu)(shu)時(shi)鏈(lian)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)將(jiang)無(wu)法排列布(bu)置，此時(shi)就需要采用(yong)(yong)(yong)具有(you)單(dan)、雙線(xian)(xian)(xian)圈(quan)的(de)交(jiao)叉(cha)(cha)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)。同(tong)(tong)心(xin)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)在(zai)同(tong)(tong)一(yi)極相(xiang)組(zu)(zu)(zu)內的(de)所有(you)線(xian)(xian)(xian)圈(quan)圍抱同(tong)(tong)一(yi)圓心(xin)。當每(mei)級(ji)每(mei)相(xiang)槽數(shu)(shu)Q為(wei)(wei)大于2的(de)偶數(shu)(shu)時(shi)則可采取(qu)同(tong)(tong)心(xin)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)的(de)形式(shi)。單(dan)層(ceng)(ceng)同(tong)(tong)心(xin)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)和(he)交(jiao)叉(cha)(cha)同(tong)(tong)心(xin)式(shi)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)的(de)優(you)點為(wei)(wei)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)的(de)繞(rao)(rao)(rao)(rao)(rao)線(xian)(xian)(xian)、嵌線(xian)(xian)(xian)較為(wei)(wei)簡單(dan)，缺點則為(wei)(wei)線(xian)(xian)(xian)圈(quan)端(duan)部過長(chang)耗用(yong)(yong)(yong)導(dao)線(xian)(xian)(xian)過多(duo)。現除偶有(you)用(yong)(yong)(yong)在(zai)小容量2極、4極電(dian)動(dong)機(ji)中以(yi)外，如今已很少采用(yong)(yong)(yong)這種繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)形式(shi)。

三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)選(xuan)型(xing)要(yao)(yao)點(dian)(dian)有(you)哪些呢？維(wei)護和(he)保(bao)養(yang)：選(xuan)擇(ze)易(yi)于維(wei)護和(he)保(bao)養(yang)的(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)，能夠(gou)提高電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)使用壽命和(he)可靠(kao)性(xing)。質(zhi)量和(he)可靠(kao)性(xing)：選(xuan)擇(ze)有(you)名品牌或有(you)一(yi)(yi)定(ding)信譽的(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)制造商，選(xuan)擇(ze)質(zhi)量可靠(kao)的(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)能夠(gou)保(bao)證設(she)備(bei)的(de)(de)(de)穩定(ding)運行和(he)生(sheng)產(chan)效率。以(yi)(yi)上(shang)是(shi)選(xuan)型(xing)三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)一(yi)(yi)些要(yao)(yao)點(dian)(dian)，應根據實際情況綜合考慮，確(que)保(bao)選(xuan)型(xing)的(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)能夠(gou)滿足負載(zai)的(de)(de)(de)要(yao)(yao)求(qiu)，并且具有(you)良好的(de)(de)(de)可靠(kao)性(xing)和(he)經(jing)濟性(xing)。三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)定(ding)義：三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)是(shi)感應電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)一(yi)(yi)種，是(shi)靠(kao)同(tong)時接入(ru)380V三(san)相(xiang)(xiang)(xiang)交流電(dian)(dian)(dian)(dian)流（相(xiang)(xiang)(xiang)位差120度）供電(dian)(dian)(dian)(dian)的(de)(de)(de)一(yi)(yi)類(lei)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)，由(you)于三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)子(zi)與定(ding)子(zi)旋轉(zhuan)(zhuan)(zhuan)磁場以(yi)(yi)相(xiang)(xiang)(xiang)同(tong)的(de)(de)(de)方向、不同(tong)的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)速旋轉(zhuan)(zhuan)(zhuan)，存在轉(zhuan)(zhuan)(zhuan)差率，所(suo)以(yi)(yi)叫三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)。三(san)相(xiang)(xiang)(xiang)異(yi)(yi)(yi)步(bu)(bu)電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)矩-轉(zhuan)(zhuan)(zhuan)速特(te)性(xing)通(tong)常為凸形，可以(yi)(yi)通(tong)過控制方法(fa)和(he)設(she)計優化來改善特(te)性(xing)。

三相(xiang)異步(bu)(bu)電動(dong)(dong)機(ji)常見問題分析：電動(dong)(dong)機(ji)空載，過(guo)(guo)(guo)(guo)負載時，電流表指針(zhen)不穩，擺動(dong)(dong)，故障(zhang)原因(yin)：a）籠型轉子導條開焊(han)或(huo)(huo)斷條；b）繞線(xian)型轉子故障(zhang)（一相(xiang)斷路）或(huo)(huo)電刷、集電環短路裝置接觸不良。運(yun)行(xing)中電動(dong)(dong)機(ji)振動(dong)(dong)較大(da)，故障(zhang)原因(yin)：a）由于(yu)磨損(sun)軸(zhou)(zhou)(zhou)承(cheng)(cheng)間(jian)隙(xi)過(guo)(guo)(guo)(guo)大(da)；b）氣隙(xi)不均勻；c）轉子不平(ping)(ping)衡(heng)；d）軸(zhou)(zhou)(zhou)承(cheng)(cheng)彎曲；e）鐵芯變(bian)形或(huo)(huo)松(song)(song)動(dong)(dong)；f）風扇不平(ping)(ping)衡(heng)；g）機(ji)殼或(huo)(huo)基礎強(qiang)度不夠(gou)；h）電動(dong)(dong)機(ji)地腳(jiao)螺絲松(song)(song)動(dong)(dong)。軸(zhou)(zhou)(zhou)承(cheng)(cheng)過(guo)(guo)(guo)(guo)熱，故障(zhang)原因(yin)：a）油(you)(you)脂過(guo)(guo)(guo)(guo)多或(huo)(huo)過(guo)(guo)(guo)(guo)少；b）油(you)(you)質(zhi)不好含有雜(za)質(zhi)；c）軸(zhou)(zhou)(zhou)承(cheng)(cheng)與軸(zhou)(zhou)(zhou)頸或(huo)(huo)端蓋(gai)配合不當（過(guo)(guo)(guo)(guo)松(song)(song)或(huo)(huo)過(guo)(guo)(guo)(guo)緊）；d）軸(zhou)(zhou)(zhou)承(cheng)(cheng)內(nei)孔(kong)偏心，與軸(zhou)(zhou)(zhou)相(xiang)擦；e）電動(dong)(dong)機(ji)端蓋(gai)或(huo)(huo)軸(zhou)(zhou)(zhou)承(cheng)(cheng)端蓋(gai)未平(ping)(ping)；f）電動(dong)(dong)機(ji)與負載間(jian)聯(lian)軸(zhou)(zhou)(zhou)器未校正，或(huo)(huo)皮(pi)帶(dai)過(guo)(guo)(guo)(guo)緊；g）軸(zhou)(zhou)(zhou)承(cheng)(cheng)間(jian)隙(xi)過(guo)(guo)(guo)(guo)大(da)或(huo)(huo)過(guo)(guo)(guo)(guo)小；h）電動(dong)(dong)機(ji)軸(zhou)(zhou)(zhou)彎曲。三相(xiang)異步(bu)(bu)電動(dong)(dong)機(ji)的電機(ji)軸(zhou)(zhou)(zhou)承(cheng)(cheng)通(tong)常采用滾動(dong)(dong)軸(zhou)(zhou)(zhou)承(cheng)(cheng)或(huo)(huo)滑動(dong)(dong)軸(zhou)(zhou)(zhou)承(cheng)(cheng)，需要注意潤滑和維護。哈(ha)爾(er)濱三相(xiang)異步(bu)(bu)電動(dong)(dong)機(ji)什么牌子好

三相異步電動機的電機定子(zi)通常采用鐵芯和(he)線(xian)圈(quan)制成，需要(yao)注意磁路設計和(he)絕緣性(xing)能(neng)。小型(xing)三相異步電動機規格

三(san)相(xiang)(xiang)(xiang)異(yi)步(bu)電(dian)(dian)動機故障檢查(cha)方法：試燈(deng)法。方法同前，等(deng)不(bu)亮的(de)(de)一(yi)相(xiang)(xiang)(xiang)為(wei)斷(duan)(duan)路(lu)。兆歐表(biao)(biao)法。阻(zu)值趨向無(wu)窮大（即(ji)不(bu)為(wei)零值）的(de)(de)一(yi)相(xiang)(xiang)(xiang)為(wei)斷(duan)(duan)路(lu)點(dian)。電(dian)(dian)流(liu)(liu)表(biao)(biao)法。電(dian)(dian)機在運行時，用(yong)電(dian)(dian)流(liu)(liu)表(biao)(biao)測三(san)相(xiang)(xiang)(xiang)電(dian)(dian)流(liu)(liu)，若(ruo)三(san)相(xiang)(xiang)(xiang)電(dian)(dian)流(liu)(liu)不(bu)平(ping)衡、又無(wu)短路(lu)現象，則(ze)電(dian)(dian)流(liu)(liu)較小(xiao)的(de)(de)一(yi)相(xiang)(xiang)(xiang)繞(rao)組(zu)有(you)部(bu)分短斷(duan)(duan)路(lu)故障。電(dian)(dian)橋(qiao)法。當電(dian)(dian)機某一(yi)相(xiang)(xiang)(xiang)電(dian)(dian)阻(zu)比其他(ta)兩相(xiang)(xiang)(xiang)電(dian)(dian)阻(zu)大時,說明該相(xiang)(xiang)(xiang)繞(rao)組(zu)有(you)部(bu)分斷(duan)(duan)路(lu)故障；電(dian)(dian)流(liu)(liu)平(ping)衡法。對于“Y”型(xing)接法的(de)(de)，可(ke)將(jiang)三(san)相(xiang)(xiang)(xiang)繞(rao)組(zu)并聯后，通(tong)入低電(dian)(dian)壓大電(dian)(dian)流(liu)(liu)的(de)(de)交流(liu)(liu)電(dian)(dian)，如果三(san)相(xiang)(xiang)(xiang)繞(rao)組(zu)中(zhong)的(de)(de)電(dian)(dian)流(liu)(liu)相(xiang)(xiang)(xiang)差大于10%時，電(dian)(dian)流(liu)(liu)小(xiao)的(de)(de)一(yi)端為(wei)斷(duan)(duan)路(lu)；對于“△”型(xing)接法的(de)(de)，先將(jiang)定子繞(rao)組(zu)的(de)(de)一(yi)個接點(dian)拆開，再逐(zhu)相(xiang)(xiang)(xiang)通(tong)入低壓大電(dian)(dian)流(liu)(liu)，其中(zhong)電(dian)(dian)流(liu)(liu)小(xiao)的(de)(de)一(yi)相(xiang)(xiang)(xiang)為(wei)斷(duan)(duan)路(lu)。小(xiao)型(xing)三(san)相(xiang)(xiang)(xiang)異(yi)步(bu)電(dian)(dian)動機規格

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