YE2電(dian)(dian)(dian)(dian)機(ji)在未接通電(dian)(dian)(dian)(dian)源之前，轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)是(shi)靜止(zhi)不(bu)動(dong)(dong)(dong)的。當電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)的定(ding)子(zi)(zi)(zi)繞組通入三相交流電(dian)(dian)(dian)(dian)后，在定(ding)子(zi)(zi)(zi)繞組中便形(xing)成(cheng)了旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)場。假定(ding)旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)場按順時針(zhen)方向(xiang)旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)，則旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)場與轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)就有相對(dui)運動(dong)(dong)(dong)，轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)導線中將產生感(gan)應(ying)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)勢。現假設旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)場不(bu)轉(zhuan)(zhuan)(zhuan)(zhuan)，相當于轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)繞組沿(yan)逆時針(zhen)方向(xiang)旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)而切(qie)割(ge)磁(ci)力線，按照右(you)手(shou)定(ding)則可以確定(ding)，威(wei)海三相異步電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)，轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)上半(ban)部導線的感(gan)應(ying)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)勢方向(xiang)是(shi)向(xiang)外的，下半(ban)部導線的感(gan)應(ying)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)勢方向(xiang)是(shi)向(xiang)內的。

YE2系列(lie)三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)出現(xian)(xian)在市場(chang)中，有些(xie)客(ke)戶為(wei)(wei)了(le)貪圖(tu)便(bian)宜(yi)就買回(hui)，可(ke)(ke)不想這些(xie)壞的(de)(de)的(de)(de)三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)會(hui)給自己或公司帶來多(duo)大的(de)(de)損失。質(zhi)量差的(de)(de)三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)一般出現(xian)(xian)的(de)(de)故(gu)障率極高，三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)價(jia)(jia)格，由于(yu)壞的(de)(de)耗材(cai)這直接(jie)影響到了(le)機(ji)(ji)器的(de)(de)壽(shou)命和質(zhi)量，三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)報價(jia)(jia)，這些(xie)問題的(de)(de)維修費用(yong)可(ke)(ke)算不小的(de)(de)數目，也會(hui)由客(ke)戶承擔，因為(wei)(wei)那些(xie)未經三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)廠(chang)家認(ren)可(ke)(ke)的(de)(de)耗材(cai)引起的(de)(de)故(gu)障，其次(ci)這些(xie)壞的(de)(de)耗材(cai)添加有甲醛等(deng)對人身體(ti)有害的(de)(de)超標物(wu)質(zhi)，長期使用(yong)質(zhi)量差的(de)(de)三(san)相(xiang)異步(bu)(bu)(bu)電(dian)動(dong)(dong)機(ji)(ji)會(hui)對人工身體(ti)造成(cheng)不可(ke)(ke)挽(wan)回(hui)的(de)(de)傷害。

三相(xiang)異步電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)銘(ming)牌上有規定的星形(xing)聯(lian)結和三角形(xing)聯(lian)結，我國3kW以下(xia)電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)采用星形(xing)聯(lian)結，三相(xiang)異步電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)廠家，3kW以上電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)采用三角形(xing)聯(lian)結，不能(neng)接(jie)錯。當電(dian)(dian)源的電(dian)(dian)壓(ya)、頻率與銘(ming)牌上的數值(zhi)偏差超過5%時，電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)不能(neng)保(bao)證(zheng)連(lian)續(xu)輸出額(e)定功率。連(lian)續(xu)工作的電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)不允(yun)許過載(zai)。三相(xiang)異步電(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)空載(zai)或(huo)負載(zai)運行不應有斷續(xu)的或(huo)異常的聲響或(huo)振動(dong)(dong)(dong)，軸承(cheng)溫度不應過高。