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jupeigang
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樓主  發(fā)表于: 2012-10-14 13:04
我公司有一老設備，電動(dòng)機為30KW，原來(lái)是星三角啟動(dòng)，現在想改用變頻器，想問(wèn)一下改用變頻器后電流應該為多大左右，比原來(lái)的電流要小多少（負載在一樣的情況下）？
ccy5156
雖然網(wǎng)絡(luò )是虛擬的,但同樣存在真.善,美,正在生銹的湘籍男孩,
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1樓  發(fā)表于: 2012-10-14 17:30
變頻器屬于軟啟動(dòng)，啟動(dòng)頻率一般不超過(guò)電機的額定電流。當然和你的負載大小有一定的關(guān)系。變頻器長(cháng)期在低速下工作，可能電流會(huì )比較大一些。
像螞蟻一樣工作，像蝴蝶一樣生活

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