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ltzxf
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樓主  發(fā)表于: 2012-08-30 16:22
設備上要裝一個(gè)0.4KW的驅動(dòng)電機,要求變頻控制轉速,普通三相電機能用嗎?頻率降低或升高多少比例會(huì )對電機有影響,問(wèn)了賣(mài)電機的回答是:變頻電機就是普通電機外加了一個(gè)風(fēng)扇,但價(jià)格貴一千多,那位知道變頻電機和普通電機的根本區別。
bmw030
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1樓  發(fā)表于: 2012-08-30 20:51
沒(méi)什么區別,可以用的,不是起停頻繁的話(huà),風(fēng)扇都不用加的

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