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花無(wú)憂(yōu)5
活到老 學(xué)到老
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樓主  發(fā)表于: 2011-04-29 20:26
我大修了一臺40KW防爆電機,(更換了繞組)該點(diǎn)饑是4路星接.電壓660V  組裝好試車(chē)時(shí).發(fā)現三相電流不平衡.其中有一相偏低.8A  那兩相都是15A .運轉聲音都正常. 我拆開(kāi)檢查接線(xiàn)方式正確.給電機做匝間耐壓實(shí)驗.測量直流電阻都正常.這是什么原因呀?會(huì )不會(huì )是轉子出現問(wèn)題了.要么改成角接380電源試下? 哪位師傅見(jiàn)過(guò)這樣的故障.麻煩告訴小弟下!  
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m289121400
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1樓  發(fā)表于: 2011-04-30 16:06
學(xué)習了,,,,

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