對380V、3相籠形(xing)電動三(san)輪機真是(shi)(shi)個老難題，貌(mao)似幾(ji)十多年之前只有回答(da)，但(dan)近(jin)乎會是(shi)(shi)新難題，下面的太絕許多回答(da)都(dou)經不易問個為啥子？也可以實際上時不會可使用性。

先(xian)說說總數(shu)的(de)答復(fu)：（沒說全的(de)請大(da)家填補）

1、電(dian)動四輪機效率(lv)大過(guo)10kW。

2、電動(dong)式(shi)機工作效(xiao)率少于50kW。

3、電動機公率以上箱式變壓器出水量的20%。

4、常常開啟的(de)(de)交流(liu)電(dian)動機，開啟時引(yin)起的(de)(de)電(dian)流(liu)值降(jiang)少于10%。

5、偶而開機(ji)(ji)的(de)伺服電機(ji)(ji)，開機(ji)(ji)時(shi)產(chan)生(sheng)的(de)額(e)定電壓降(jiang)不小(xiao)于15%。

還要好象是個工作經驗計算(suan)(suan)(suan)方(fang)式(shi)(shi)方(fang)式(shi)(shi)換(huan)算(suan)(suan)(suan)，可(ke)以通過代入(ru)計算(suan)(suan)(suan)方(fang)式(shi)(shi)方(fang)式(shi)(shi)換(huan)算(suan)(suan)(suan)計算(suan)(suan)(suan)方(fang)式(shi)(shi)馬上又來確定是減壓重新啟(qi)動。望懂得(de)該計算(suan)(suan)(suan)方(fang)式(shi)(shi)方(fang)式(shi)(shi)換(huan)算(suan)(suan)(suan)的老朋友補給下。

對1、2兩種，因此(ci)不會據(ju)，情況中上千、百余Kw的(de)電動三輪機包括全壓單(dan)獨再啟動的(de)。

對3項(xiang)，低壓變壓器是輕載嗎?

 對4、5項(xiang)，現(xian)場(chang)中用又咋樣撐(cheng)握?難不(bu)成(cheng)是(shi)現(xian)場(chang)檢測的嗎?

現實上采取穩壓啟用(yong)的(de)(de)(de)(de)主耍作(zuo)用(yong)，就(jiu)(jiu)算盡量不要不良(liang)影響另外機(ji)(ji)器(qi)(qi)的(de)(de)(de)(de)常規業務。要是不會另外機(ji)(ji)器(qi)(qi)，就(jiu)(jiu)有干式低壓電(dian)抗器(qi)(qi)與(yu)電(dian)動機(ji)(ji)，那末電(dian)動機(ji)(ji)的(de)(de)(de)(de)工作(zuo)吸(xi)(xi)收率不錯近乎干式低壓電(dian)抗器(qi)(qi)的(de)(de)(de)(de)存儲量，來(lai)擔心工作(zuo)吸(xi)(xi)收率質數、吸(xi)(xi)收率等(deng)的(de)(de)(de)(de)因(yin)素，普遍電(dian)動機(ji)(ji)工作(zuo)吸(xi)(xi)收率為干式低壓電(dian)抗器(qi)(qi)存儲量的(de)(de)(de)(de)80%，都不錯真接(jie)啟用(yong)，亦或干式低壓電(dian)抗器(qi)(qi)與(yu)電(dian)動機(ji)(ji)同一時間啟用(yong)。

現實中(zhong)中(zhong)乃(nai)至絕對多(duo)數的大電(dian)機的開啟時(shi)，電(dian)抗器或多(duo)或者另外 其他加熱(re)器端(duan)差，那樣其他加熱(re)器端(duan)差的多(duo)長也(ye)是要(yao)考慮一下(xia)的基本要(yao)素(su)產(chan)品之一。

電動三(san)輪機加載時(shi)為(wei)哪個會危害其余電器專(zhuan)用設備專(zhuan)用設備的工作呢?

鑒(jian)于籠形(xing)直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)思想(xiang)的(de)(de)(de)運(yun)行直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)是其減速機額定功率直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)的(de)(de)(de)5-7倍(bei)，大直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)會促(cu)使大的(de)(de)(de)電(dian)(dian)阻(zu)值(zhi)降，電(dian)(dian)阻(zu)值(zhi)降提高(gao)一段值(zhi)，多種電(dian)(dian)氣公司設配也有(you)有(you)機會為(wei)止(zhi)操(cao)作或促(cu)使電(dian)(dian)腦故障。因為(wei)有(you)法規一直(zhi)(zhi)(zhi)運(yun)行的(de)(de)(de)減速機，形(xing)成的(de)(de)(de)電(dian)(dian)阻(zu)值(zhi)降沒(mei)能已經超過10%，不(bu)一直(zhi)(zhi)(zhi)運(yun)行形(xing)成的(de)(de)(de)電(dian)(dian)阻(zu)值(zhi)降不(bu)超15%。

為一(yi)些 會(hui)生成(cheng)端電壓降(jiang)呢?

是比如變(bian)電器(qi)(qi)給予(yu)沒得(de)大(da)(da)三相(xiang)(xiang)異(yi)步伺(si)(si)服(fu)直流(liu)(liu)(liu)無刷電機(ji)開啟時需的(de)(de)大(da)(da)的(de)(de)輸(shu)出功(gong)率(lv)，比如變(bian)電器(qi)(qi)能給予(yu)大(da)(da)三相(xiang)(xiang)異(yi)步伺(si)(si)服(fu)直流(liu)(liu)(liu)無刷電機(ji)開啟需要(yao)的(de)(de)大(da)(da)的(de)(de)輸(shu)出功(gong)率(lv)，就不容易會出現(xian)的(de)(de)輸(shu)出功(gong)率(lv)降或會出現(xian)的(de)(de)的(de)(de)輸(shu)出功(gong)率(lv)降很粗。這(zhe)說是說變(bian)電器(qi)(qi)存(cun)儲空間的(de)(de)大(da)(da)多(duo)少(shao)小(xiao)，也選擇了的(de)(de)輸(shu)出功(gong)率(lv)降的(de)(de)大(da)(da)多(duo)少(shao)小(xiao)。那麼預(yu)期里面絕沒辦法不談變(bian)電器(qi)(qi)存(cun)儲空間大(da)(da)多(duo)少(shao)小(xiao)，而只講是多(duo)少(shao)的(de)(de)三相(xiang)(xiang)異(yi)步伺(si)(si)服(fu)直流(liu)(liu)(liu)無刷電機(ji)要(yao)減壓開啟。

的(de)(de)(de)(de)電(dian)流(liu)(liu)值(zhi)器(qi)替(ti)換成(cheng)馬(ma)力因數(shu)補償的(de)(de)(de)(de)長(chang)寬比，也是(shi)決定(ding)的(de)(de)(de)(de)的(de)(de)(de)(de)電(dian)流(liu)(liu)值(zhi)降長(chang)寬比的(de)(de)(de)(de)前提條件(jian)產品之一(yi)(yi)。我們可(ke)以想(xiang)象一(yi)(yi)下(xia)的(de)(de)(de)(de)電(dian)流(liu)(liu)值(zhi)器(qi)輕載與過載時，各是(shi)重新運(yun)行同樣一(yi)(yi)臺交流(liu)(liu)電(dian)動三輪機，從而(er)造(zao)成(cheng)的(de)(de)(de)(de)的(de)(de)(de)(de)電(dian)流(liu)(liu)值(zhi)降一(yi)(yi)定(ding)不(bu)相似(si)。那(nei)末只講電(dian)動三輪機馬(ma)力是(shi)的(de)(de)(de)(de)電(dian)流(liu)(liu)值(zhi)器(qi)儲電(dian)量(liang)的(de)(de)(de)(de)百分之幾，而(er)不(bu)提的(de)(de)(de)(de)電(dian)流(liu)(liu)值(zhi)器(qi)替(ti)換成(cheng)馬(ma)力因數(shu)補償是(shi)哪些(xie)，來答(da)案交流(liu)(liu)電(dian)動三輪機是(shi)不(bu)是(shi)也要減壓重新運(yun)行也是(shi)行沒通的(de)(de)(de)(de)。

到今天為止，要(yao)選(xuan)擇直流電動(dong)因需不需要(yao)穩壓開始，最少(shao)要(yao)來考慮到直流電動(dong)因瓦(wa)數、干式變壓器容(rong)積、涉及工況兩個情況，缺一(yi)難(nan)以!這(zhe)樣的(de)話了解下現階段不同的(de)其實的(de)選(xuan)擇方法步驟，到底哪有把這(zhe)三者之間標準化來考慮到呢?

怎么樣去來總合采取這(zhe)這(zhe)三個元素呢?為便(bian)于都用(yong)水(shui)量流(liu)(liu)(liu)這(zhe)款規格。但其(qi)實這(zhe)款狀況的(de)(de)其(qi)實質是：多長的(de)(de)直流(liu)(liu)(liu)相電(dian)壓(ya)(ya)電(dian)流(liu)(liu)(liu)?會有多長的(de)(de)相電(dian)壓(ya)(ya)電(dian)流(liu)(liu)(liu)降?也說是直流(liu)(liu)(liu)相電(dian)壓(ya)(ya)電(dian)流(liu)(liu)(liu)與相電(dian)壓(ya)(ya)電(dian)流(liu)(liu)(liu)降的(de)(de)狀況。

小伙伴了解(jie)到籠形調速電(dian)機的開機啟動直(zhi)流(liu)電(dian)是(shi)特殊直(zhi)流(liu)電(dian)的5-7倍。

對電(dian)(dian)抗(kang)器們來說，大的(de)短路功(gong)率功(gong)率才會使(shi)電(dian)(dian)阻降(jiang)完(wan)成10%、15%呢(ni)?這已(yi)經通道電(dian)(dian)阻值匹(pi)配(pei)電(dian)(dian)阻這是(shi)基本參數(shu)，似的(de)的(de)電(dian)(dian)力(li)能源電(dian)(dian)抗(kang)器電(dian)(dian)阻值匹(pi)配(pei)電(dian)(dian)阻為5%以(yi)內，也就(jiu)當電(dian)(dian)抗(kang)器的(de)內容(rong)效(xiao)果(guo)功(gong)率為電(dian)(dian)機額定功(gong)率值時，電(dian)(dian)阻降(jiang)為5%，這就(jiu)內容(rong)效(xiao)果(guo)380V的(de)電(dian)(dian)抗(kang)器，來設計(ji)的(de)內容(rong)效(xiao)果(guo)電(dian)(dian)阻是(shi)400V，當載(zai)重時恰(qia)好(hao)是(shi)380V。

統計假設跟隨低(di)(di)壓(ya)(ya)低(di)(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)器(qi)(qi)(qi)容量直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)的(de)(de)(de)加強，低(di)(di)壓(ya)(ya)低(di)(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)器(qi)(qi)(qi)輸送相直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)相直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)降(jiang)是(shi)(shi)線性網絡波動的(de)(de)(de)，那 當低(di)(di)壓(ya)(ya)低(di)(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)輸送直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)為(wei)(wei)2倍(bei)伺(si)(si)服電(dian)(dian)(dian)(dian)(dian)(dian)機載(zai)荷(he)系(xi)(xi)數功(gong)率直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)時，相直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)降(jiang)是(shi)(shi)5%，3倍(bei)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)時是(shi)(shi)10%，4倍(bei)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)時是(shi)(shi)15%。那 平繁開(kai)(kai)(kai)機開(kai)(kai)(kai)機時的(de)(de)(de)伺(si)(si)服電(dian)(dian)(dian)(dian)(dian)(dian)機限制的(de)(de)(de)相直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)降(jiang)為(wei)(wei)10%，也便是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)動四輪(lun)機的(de)(de)(de)開(kai)(kai)(kai)機開(kai)(kai)(kai)機時直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)配上目(mu)前擁有低(di)(di)壓(ya)(ya)低(di)(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)器(qi)(qi)(qi)容量直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)，只有大(da)(da)于低(di)(di)壓(ya)(ya)低(di)(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)器(qi)(qi)(qi)3倍(bei)伺(si)(si)服電(dian)(dian)(dian)(dian)(dian)(dian)機載(zai)荷(he)系(xi)(xi)數功(gong)率直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)大(da)(da)小(xiao)，就(jiu)能夠(gou) 之間(jian)開(kai)(kai)(kai)機開(kai)(kai)(kai)機時。

這(zhe)可是最(zui)簡潔明了、最(zui)比較敏感預期(qi)的(de)判別電動(dong)式機采取幾(ji)種方式開(kai)啟的(de)方式。