新聞動態 高(gao)壓電(dian)機轉速慢的原(yuan)因

高(gao)壓電(dian)機(ji)的功率大，抗沖(chong)擊才干強，毛(mao)病(bing)是慣性大且啟動(dong)跟制動(dong)艱苦，那么(me)，在實際利用時，高(gao)壓電(dian)機(ji)的轉速可能的起因有哪(na)些呢(ni)？

高壓電(dian)(dian)念頭是(shi)指額定(ding)電(dian)(dian)壓在1000V以上的(de)電(dian)(dian)念頭。三相異步電(dian)(dian)動(dong)機轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)的(de)轉(zhuan)(zhuan)(zhuan)(zhuan)速低于旋轉(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)(ci)場的(de)轉(zhuan)(zhuan)(zhuan)(zhuan)速，轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)繞(rao)組因(yin)與(yu)磁(ci)(ci)場間存在著相對運動(dong)而產(chan)(chan)生電(dian)(dian)動(dong)勢和電(dian)(dian)流，并與(yu)磁(ci)(ci)場相互作用(yong)產(chan)(chan)生電(dian)(dian)磁(ci)(ci)轉(zhuan)(zhuan)(zhuan)(zhuan)矩，實現能量變換。其擁有(you)(you)結構簡單、運行可靠、價(jia)格便宜等優點。常利用(yong)的(de)是(shi)6000V跟(gen)10000V電(dian)(dian)壓，因(yin)為國(guo)外(wai)的(de)電(dian)(dian)網不同，也有(you)(you)3300V跟(gen)6600V的(de)電(dian)(dian)壓等級(ji)。

 

造(zao)成(cheng)高壓電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)速(su)慢的(de)(de)可能(neng)起因：假如電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓重(zhong)大不均(jun)衡，可找電(dian)(dian)(dian)(dian)力(li)部分處理(li)。電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)廠家通過(guo)上(shang)述分析可以總結出電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)工(gong)作(zuo)原理(li)為：當電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)的(de)(de)三相(xiang)定子(zi)(zi)(zi)(zi)繞(rao)(rao)(rao)組（各(ge)相(xiang)差120度電(dian)(dian)(dian)(dian)角度），通入三相(xiang)對(dui)稱交流(liu)電(dian)(dian)(dian)(dian)后，將產(chan)生(sheng)一個旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)(ci)場(chang)，該旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)(ci)場(chang)切割轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)繞(rao)(rao)(rao)組，從而在轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)繞(rao)(rao)(rao)組中產(chan)生(sheng)感應(ying)電(dian)(dian)(dian)(dian)流(liu)（轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)繞(rao)(rao)(rao)組是閉合通路(lu)），載流(liu)的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)導(dao)體在定子(zi)(zi)(zi)(zi)旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)(ci)場(chang)作(zuo)用下將產(chan)生(sheng)電(dian)(dian)(dian)(dian)磁(ci)(ci)力(li)，從而在電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)軸上(shang)形成(cheng)電(dian)(dian)(dian)(dian)磁(ci)(ci)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)矩，驅動(dong)電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)，并且(qie)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)方(fang)向與旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)(ci)場(chang)方(fang)向相(xiang)同(tong)。三相(xiang)異步電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)速(su)低于旋轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)磁(ci)(ci)場(chang)的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)速(su)，轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)繞(rao)(rao)(rao)組因與磁(ci)(ci)場(chang)間存在著(zhu)相(xiang)對(dui)運動(dong)而產(chan)生(sheng)電(dian)(dian)(dian)(dian)動(dong)勢(shi)和(he)電(dian)(dian)(dian)(dian)流(liu)，并與磁(ci)(ci)場(chang)相(xiang)互作(zuo)用產(chan)生(sheng)電(dian)(dian)(dian)(dian)磁(ci)(ci)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)矩，實現能(neng)量變換。其擁有結構簡單(dan)、運行可靠、價格便宜等優(you)點。假如電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)內部匝間短路(lu)，找著(zhu)故障(zhang)點進行處理(li)。必要時可考慮重(zhong)繞(rao)(rao)(rao)。

 

假(jia)如三(san)相電(dian)流基本均衡，則(ze)起因在電(dian)源(yuan)電(dian)壓過低或(huo)轉子斷(duan)條(tiao)。 電(dian)機(ji)轉得(de)慢(man)且無力。這種故障假(jia)如是(shi)(shi)(shi)單(dan)相電(dian)念(nian)頭，這很有可(ke)能(neng)是(shi)(shi)(shi)運(yun)行電(dian)容容量(liang)變小(xiao)了或(huo)有略微短(duan)路(lu)景象(xiang)。判(pan)斷(duan)電(dian)容是(shi)(shi)(shi)否(fou)短(duan)路(lu)除(chu)了用(yong)(yong)萬用(yong)(yong)表丈量(liang)之外，還可(ke)能(neng)用(yong)(yong)手摸電(dian)容的(de)方法(fa)：溫(wen)度(du)假(jia)如很高(gao)，說明電(dian)容有短(duan)路(lu)景象(xiang)應當調(diao)換。假(jia)如溫(wen)度(du)畸形則(ze)比手溫(wen)略微高(gao)一點(dian)。 其(qi)次還得(de)檢查連接(jie)線有不松動或(huo)接(jie)觸不良。輸(shu)(shu)入(ru)電(dian)壓是(shi)(shi)(shi)否(fou)偏(pian)低？假(jia)如是(shi)(shi)(shi)三(san)相電(dian)念(nian)頭除(chu)了檢查輸(shu)(shu)入(ru)電(dian)壓是(shi)(shi)(shi)否(fou)偏(pian)低外，還需檢查三(san)相輸(shu)(shu)入(ru)是(shi)(shi)(shi)否(fou)均衡。在消除(chu)上述(shu)兩項因素之外。也可(ke)能(neng)用(yong)(yong)手摸電(dian)機(ji)溫(wen)升的(de)辦法(fa)。

 

當負載很(hen)輕且在(zai)較(jiao)短的時光內電(dian)(dian)機溫(wen)度(du)升(sheng)得很(hen)高，則可(ke)能是匝(za)間(jian)短路(lu)。 另(ling)外還可(ke)能用(yong)鼻子(zi)聞(wen)的方法(fa)，進一(yi)步判斷(duan)匝(za)間(jian)短路(lu)。打開(kai)電(dian)(dian)機接線蓋，切斷(duan)電(dian)(dian)源，用(yong)鼻子(zi)湊近(jin)接線柱(zhu)處(chu)，假(jia)如聞(wen)到有(you)焦糊味的，同時電(dian)(dian)念頭(tou)溫(wen)升(sheng)較(jiao)快的，則判斷(duan)為三相匝(za)間(jian)短路(lu)。 此外，三相電(dian)(dian)念頭(tou)的鼠籠環脫焊，硅鋼(gang)片(pian)疊(die)片(pian)重(zhong)大扭曲(qu)等也會(hui)引起這種(zhong)故(gu)(gu)障，但(dan)這種(zhong)故(gu)(gu)障產生概率(lv)較(jiao)低