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huxupin
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樓主  發(fā)表于: 2010-09-20 21:00
有一個(gè)30kw 電動(dòng)機帶動(dòng)的負載用手轉得動(dòng)，可是啟動(dòng)時(shí)轉矩很小，像掉相一樣，啟動(dòng)不了，如果不帶負載，也可以啟動(dòng)，不知道這是什么問(wèn)題。
客居他鄉
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1樓  發(fā)表于: 2010-09-21 22:22
應是控制線(xiàn)路的問(wèn)題。檢查你的降壓?jiǎn)?dòng)線(xiàn)路，是星－三角，自藕變壓還是電阻降壓?jiǎn)?dòng)。

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