大眾都都清楚三相四線異步電動三輪機有額定負載的開機運行瞬時電流，但山東省減速機廠商發現了時常電(dian)(dian)動四輪(lun)成(cheng)功因(yin)此交流電(dian)(dian)源(yuan)原以致造(zao)(zao)成(cheng) 運(yun)轉電(dian)(dian)壓(ya)過高，最后造(zao)(zao)成(cheng) 損毀(hui)。

昨天蘭(lan)州盛華無刷電機廠就歸置講解，匯總引致電動(dong)機自動(dong)運行功(gong)率過高的功(gong)率情況(kuang)。

1、三相(xiang)電源(yuan)異(yi)步電動伸縮機運轉外接電源(yuan)電壓值過(guo)高

當電(dian)(dian)(dian)動機(ji)(ji)(ji)外(wai)接電(dian)(dian)(dian)源模(mo)塊(kuai)功率電(dian)(dian)(dian)阻值(zhi)過高時，電(dian)(dian)(dian)動機(ji)(ji)(ji)反電(dian)(dian)(dian)動勢、磁(ci)(ci)通(tong)及(ji)磁(ci)(ci)通(tong)容重(zhong)均隨后不斷增強。會因(yin)為(wei)鐵不足的(de)(de)長寬(kuan)與磁(ci)(ci)通(tong)容重(zhong)每(mei)平方米成比例，則鐵不足加大(da)，會出現(xian)鐵心發(fa)(fa)燙。而磁(ci)(ci)通(tong)加大(da)，又(you)誘發(fa)(fa)勵磁(ci)(ci)電(dian)(dian)(dian)功率食用量逐漸加大(da)，出現(xian)定子變(bian)頻電(dian)(dian)(dian)動機(ji)(ji)(ji)繞線銅損(sun)不斷增強，使(shi)(shi)變(bian)頻電(dian)(dian)(dian)動機(ji)(ji)(ji)繞線發(fa)(fa)燙。因(yin)而，外(wai)接電(dian)(dian)(dian)源模(mo)塊(kuai)功率電(dian)(dian)(dian)阻值(zhi)可超過電(dian)(dian)(dian)動機(ji)(ji)(ji)的(de)(de)額定的(de)(de)功率電(dian)(dian)(dian)阻值(zhi)時，會使(shi)(shi)電(dian)(dian)(dian)動機(ji)(ji)(ji)發(fa)(fa)燙，甚至會會出現(xian)變(bian)頻電(dian)(dian)(dian)動機(ji)(ji)(ji)燒掉。

2、主(zhu)機電源電阻過低

電(dian)(dian)原端電(dian)(dian)壓過低(di)時，若直流電(dian)(dian)傾向的(de)電(dian)(dian)磁能電(dian)(dian)動(dong)機(ji)扭矩穩(wen)定(ding)不便(bian)，磁通將有效降低(di)，電(dian)(dian)機(ji)旋(xuan)轉葉直流電(dian)(dian)根據(ju)增(zeng)多(duo)，定(ding)子直流電(dian)(dian)中裝載電(dian)(dian)原凈重一起增(zeng)多(duo)，產生繞線(xian)的(de)銅損耗量(liang)增(zeng)多(duo)，導致定(ding)、電(dian)(dian)機(ji)旋(xuan)轉葉線(xian)圈(quan)超溫。

3、外(wai)接電源電壓值(zhi)有誤稱

當電線(xian)一相(xiang)斷路、商業保險絲一相(xiang)短路，或閘刀打火設施角頭燒傷因受一相(xiang)不暢，都將會(hui)造成相(xiang)電壓電動(dong)機走兩相(xiang)電，因受啟(qi)動(dong)的二相(xiang)線(xian)圈用大(da)電流量經過熱(re)，及(ji)至(zhi)損壞。如(ru)此(ci)，針對(dui)相(xiang)電壓伺服電機一樣(yang) 不適應用短路器去保證。

4、三(san)相四(si)線制主機電源不不平衡量

當三(san)相電(dian)(dian)源(yuan)電(dian)(dian)機(ji)(ji)電(dian)(dian)不(bu)動(dong)(dong)動(dong)(dong)平衡(heng)機(ji)(ji)機(ji)(ji)時，會(hui)使智(zhi)能機(ji)(ji)的三(san)相電(dian)(dian)源(yuan)電(dian)(dian)機(ji)(ji)直(zhi)流電(dian)(dian)壓不(bu)動(dong)(dong)動(dong)(dong)平衡(heng)機(ji)(ji)機(ji)(ji)，產生(sheng)電(dian)(dian)機(ji)(ji)定子溫度(du)過熱。

由(you)上述內(nei)容可(ke)以(yi)看到，當電(dian)(dian)動(dong)機(ji)過(guo)高時，應先是決定外(wai)接(jie)外(wai)接(jie)電(dian)(dian)源(yuan)線的領(ling)域的誘因（軟通電(dian)(dian)、變頻(pin)式器、步進(jin)win7驅(qu)(qu)動(dong)win7驅(qu)(qu)動(dong)也行(xing)當做是外(wai)接(jie)外(wai)接(jie)電(dian)(dian)源(yuan)線）。判(pan)定外(wai)接(jie)外(wai)接(jie)電(dian)(dian)源(yuan)線的領(ling)域無毛病(bing)后，再去決定其(qi)它的領(ling)域基本要素。