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1120795098
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樓主  發(fā)表于: 2014-06-28 15:20
現有3KW6極電機一臺，配7.5KW國產(chǎn)通用變頻器。啟動(dòng)不起來(lái)，需要用力盤(pán)電機軸才能轉動(dòng)，當頻率低于10HZ，電機就不轉了。20HZ時(shí)，電流7A。如用電網(wǎng)可以直接啟動(dòng)，請問(wèn)有沒(méi)有什么好辦法能解決此問(wèn)題。矢量變頻器可以啟動(dòng)么？
kaiyuan
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1樓  發(fā)表于: 2014-06-28 17:26
用磁粉離合器，當轉速起來(lái)了再慢慢接合。不然就用兩個(gè)接觸器，先用控制電網(wǎng)接入啟動(dòng)，然后變頻器先與電機斷開(kāi)后啟動(dòng)上升至工頻后再接入電機。
樓主留言：
不行的，昨天試過(guò)了，電機有時(shí)需要快，有時(shí)需要慢，甚至有時(shí)是不轉的。

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