普(pu)通(tong)鼠(shu)籠(long)式(shi)異(yi)步(bu)電(dian)動(dong)機(ji)的(de)起(qi)動(dong)轉(zhuan)矩(ju)與(yu)電(dian)壓(ya)的(de)平(ping)方(fang)成(cheng)正(zheng)比(bi),而(er)繞(rao)線(xian)式(shi)轉(zhuan)子(zi)異(yi)步(bu)電(dian)動(dong)機(ji)串(chuan)電(dian)阻(zu)啟(qi)動(dong),電(dian)阻(zu)值(zhi)在(zai)不(bu)大(da)於(yu)一(yi)定(ding)值(zhi)時(shi),轉(zhuan)矩(ju)不(bu)降(jiang)反(fan)升(sheng),正(zheng)是(shi)這(zhe)樣(yang)的(de)機(ji)械(xie)特(te)性(xing),而(er)用(yong)於(yu)橋(qiao)式(shi)起(qi)重(zhong)機(ji)這(zhe)樣(yang)需(xu)要(yao)大(da)起(qi)動(dong)轉(zhuan)矩(ju)的(de)場(chang)合(he),而(er)繞(rao)線(xian)式(shi)轉(zhuan)子(zi)異(yi)步(bu)電(dian)動(dong)機(ji)的(de)機(ji)械(xie)特(te)性(xing)曲(qu)線(xian)可(ke)查(zha)相(xiang)關(guan)書(shu)籍(ji)。