浙江隔爆型三相異步電動機

允(yun)許全(quan)壓(ya)(ya)直接起(qi)動(dong)(dong)(dong)，如負載轉(zhuan)(zhuan)矩(ju)不大，也可采用降(jiang)壓(ya)(ya)起(qi)動(dong)(dong)(dong)方式(shi)，降(jiang)壓(ya)(ya)起(qi)動(dong)(dong)(dong)時(shi)電(dian)(dian)動(dong)(dong)(dong)機的(de)起(qi)動(dong)(dong)(dong)轉(zhuan)(zhuan)矩(ju)大致與電(dian)(dian)壓(ya)(ya)平方成正比的(de)下降(jiang)，如果負載機械的(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)慣量（J）值在一定的(de)范圍內(nei)，則電(dian)(dian)動(dong)(dong)(dong)機允(yun)許冷態(tai)連續起(qi)動(dong)(dong)(dong)兩次(ci)，熱太連續起(qi)動(dong)(dong)(dong)一次(ci)。

作(zuo)電(dian)動機運行(xing)的三(san)相異步(bu)電(dian)機。三(san)相異步(bu)電(dian)動機轉子的轉速(su)低于旋轉磁(ci)場的轉速(su)，轉子繞組(zu)因與磁(ci)場間(jian)存(cun)在(zai)著相對運動而產生電(dian)動勢和電(dian)流，并與磁(ci)場相互作(zuo)用產生電(dian)磁(ci)轉矩，實現能量變換(huan)。

與(yu)單相(xiang)異步(bu)電(dian)(dian)動(dong)(dong)(dong)機(ji)相(xiang)比，三(san)相(xiang)異步(bu)電(dian)(dian)動(dong)(dong)(dong)機(ji)運(yun)行性(xing)能好，并可(ke)節(jie)省各種材料。按轉(zhuan)子(zi)結構(gou)的(de)不同，三(san)相(xiang)異步(bu)電(dian)(dian)動(dong)(dong)(dong)機(ji)可(ke)分為籠式和繞線式兩種。籠式轉(zhuan)子(zi)的(de)異步(bu)電(dian)(dian)動(dong)(dong)(dong)機(ji)結構(gou)簡單、運(yun)行可(ke)靠、重量(liang)輕、價格便(bian)宜(yi)，得到了廣泛的(de)應用，其主要(yao)缺點是調速困難。繞線式三(san)相(xiang)異步(bu)電(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)轉(zhuan)子(zi)和定子(zi)一樣也(ye)設置(zhi)了三(san)相(xiang)繞組并通過滑環、電(dian)(dian)刷與(yu)外部變阻(zu)(zu)器(qi)連接。調節(jie)變阻(zu)(zu)器(qi)電(dian)(dian)阻(zu)(zu)可(ke)以改善電(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)起動(dong)(dong)(dong)性(xing)能和調節(jie)電(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)轉(zhuan)速。

浙江隔爆型三相異步電動機

浙(zhe)江永發機電(dian)有限公(gong)司生產的(de)YE3系列(lie)超高效(xiao)率三相異步電(dian)機通過了中(zhong)國(guo)質量(liang)認(ren)證中(zhong)心(xin)(CQC)的(de)產品(pin)認(ren)真，獲得"中(zhong)國(guo)節(jie)能產品(pin)認(ren)證"證書(shu)（證書(shu)編號：CQC、CQC）在2013年被國(guo)家評為“能效(xiao)之(zhi)星”企業和國(guo)家高效(xiao)電(dian)機“節(jie)能產品(pin)惠(hui)民工(gong)程”企業

YE3系列電動(dong)機(ji)的(de)安裝方式(shi)(shi)符(fu)合GB997《電機(ji)結(jie)構及安裝形(xing)式(shi)(shi)代(dai)號》的(de)規定(ding)，本系列電機(ji)有(you)下(xia)列幾種基本結(jie)構形(xing)式(shi)(shi)：

B3-機座帶底腳、端蓋無(wu)凸緣、臥式(shi)安裝

B5-機(ji)座不帶底腳、端蓋有(you)凸緣、臥式或立(li)式安(an)裝

B35-機座(zuo)帶底(di)腳、端(duan)蓋有小凸緣

B14-機座不(bu)帶底腳、端蓋有小凸緣

B34-機座帶底(di)腳、端蓋有(you)小凸緣(yuan)