BK5200進(jìn)口模塊

（1）相間電阻均勻,不要去管電阻多大,均勻就行.對(duì)大于15KW的電機(jī)你可能怎么量都是0歐姆,那是因?yàn)槿f用表的量程太大了.換個(gè)微歐姆表才行.

（2）相線對(duì)電機(jī)外殼絕緣大于1M歐姆, 怎么樣判斷三相異步電機(jī)的好壞？ 量單相電動(dòng)機(jī)時(shí)應(yīng)斷開電容 1、萬用表測電流，三相不平衡率不大于10%； 2、搖表測絕緣，每相對(duì)地、相間均不小于0.5兆;

（3）電橋測直流電阻，三相不平衡率不大于2%；

（4）除了樓上說的方法，檢查其繞組是否正常的方法是在其中任意兩根引線上接上萬用表的小電流檔（比如50微安），這時(shí)用用轉(zhuǎn)動(dòng)電機(jī)，萬用表的表針應(yīng)該是可以明顯擺動(dòng)（與轉(zhuǎn)動(dòng)快慢有關(guān)）。

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