中型低壓式三相異步電動機供應概述

是本公司開發的中型電動機，技術性能指標達到了先進水平、效率高，式樣新穎，外形美觀，結構緊湊合理，運行安全可靠。
是一般用途的電動機適用于驅動無特殊要求的各種機械設備，如通風機、壓縮機、水泵，破碎機，輸送機械，礦山機械等。
額定電壓為380V、額定頻率為50Hz、絕緣等級為F級、冷卻方式為IC411、安裝型式為IMB3。

作電(dian)(dian)動(dong)機運行的(de)三(san)相(xiang)(xiang)異步電(dian)(dian)機。三(san)相(xiang)(xiang)異步電(dian)(dian)動(dong)機轉(zhuan)子(zi)的(de)轉(zhuan)速低于旋轉(zhuan)磁場的(de)轉(zhuan)速，轉(zhuan)子(zi)繞(rao)組因(yin)與磁場間存在著相(xiang)(xiang)對運動(dong)而產(chan)(chan)生電(dian)(dian)動(dong)勢和電(dian)(dian)流，并與磁場相(xiang)(xiang)互作用產(chan)(chan)生電(dian)(dian)磁轉(zhuan)矩(ju)，實(shi)現能量變換。

與單(dan)相(xiang)異(yi)(yi)(yi)步電(dian)(dian)動機(ji)(ji)相(xiang)比(bi)，三相(xiang)異(yi)(yi)(yi)步電(dian)(dian)動機(ji)(ji)運(yun)行性(xing)能(neng)好，并(bing)可節省各種(zhong)材料(liao)。按(an)轉子(zi)結(jie)構的不同，三相(xiang)異(yi)(yi)(yi)步電(dian)(dian)動機(ji)(ji)可分為籠式和(he)(he)繞(rao)(rao)線(xian)式兩(liang)種(zhong)。籠式轉子(zi)的異(yi)(yi)(yi)步電(dian)(dian)動機(ji)(ji)結(jie)構簡(jian)單(dan)、運(yun)行可靠、重(zhong)量輕、價格便宜(yi)，得到了廣(guang)泛的應用，其(qi)主(zhu)要(yao)缺點(dian)是(shi)調速(su)困難。繞(rao)(rao)線(xian)式三相(xiang)異(yi)(yi)(yi)步電(dian)(dian)動機(ji)(ji)的轉子(zi)和(he)(he)定子(zi)一樣也設置了三相(xiang)繞(rao)(rao)組并(bing)通(tong)過滑環、電(dian)(dian)刷與外部變阻(zu)器(qi)連(lian)接。調節變阻(zu)器(qi)電(dian)(dian)阻(zu)可以改善電(dian)(dian)動機(ji)(ji)的起動性(xing)能(neng)和(he)(he)調節電(dian)(dian)動機(ji)(ji)的轉速(su)。

中型低壓式三相異步電動機供應工作原理

通過定(ding)子產(chan)生(sheng)的(de)(de)(de)旋轉(zhuan)(zhuan)(zhuan)磁(ci)(ci)場（其轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)為同(tong)步(bu)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)n1）與轉(zhuan)(zhuan)(zhuan)子繞組(zu)的(de)(de)(de)相(xiang)(xiang)對運動(dong)(dong)，轉(zhuan)(zhuan)(zhuan)子繞組(zu)切(qie)割磁(ci)(ci)感(gan)線產(chan)生(sheng)感(gan)應(ying)電(dian)(dian)動(dong)(dong)勢，從而使(shi)轉(zhuan)(zhuan)(zhuan)子繞組(zu)中產(chan)生(sheng)感(gan)應(ying)電(dian)(dian)流(liu)。轉(zhuan)(zhuan)(zhuan)子繞組(zu)中的(de)(de)(de)感(gan)應(ying)電(dian)(dian)流(liu)與磁(ci)(ci)場作(zuo)用，產(chan)生(sheng)電(dian)(dian)磁(ci)(ci)轉(zhuan)(zhuan)(zhuan)矩，使(shi)轉(zhuan)(zhuan)(zhuan)子旋轉(zhuan)(zhuan)(zhuan)。由于當(dang)轉(zhuan)(zhuan)(zhuan)子轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)逐漸接近同(tong)步(bu)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)時(shi)，感(gan)應(ying)電(dian)(dian)流(liu)逐漸減小，所產(chan)生(sheng)的(de)(de)(de)電(dian)(dian)磁(ci)(ci)轉(zhuan)(zhuan)(zhuan)矩也相(xiang)(xiang)應(ying)減小，當(dang)異步(bu)電(dian)(dian)動(dong)(dong)機工作(zuo)在電(dian)(dian)動(dong)(dong)機狀(zhuang)態(tai)時(shi)，轉(zhuan)(zhuan)(zhuan)子轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)小于同(tong)步(bu)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)。為了描(miao)述轉(zhuan)(zhuan)(zhuan)子轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)n與同(tong)步(bu)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)n1之間的(de)(de)(de)差別(bie)，引(yin)入轉(zhuan)(zhuan)(zhuan)差率。三相(xiang)(xiang)感(gan)應(ying)電(dian)(dian)動(dong)(dong)機電(dian)(dian)氣制(zhi)(zhi)動(dong)(dong)方式(shi)有：能(neng)耗制(zhi)(zhi)動(dong)(dong)、反接制(zhi)(zhi)動(dong)(dong)、再(zai)生(sheng)制(zhi)(zhi)動(dong)(dong)三種。