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小蜜蜂
你讓我滾,我滾了。你讓我回來(lái),對不起,滾遠了...
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樓主  發(fā)表于: 2021-01-18 17:31
三相電熱管總功率27KW,額定電壓220V。電源輸入電壓是三相220V,電熱管接成三角形,那么線(xiàn)電流是70.8A嗎?
zhangwei3dia
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1樓  發(fā)表于: 2021-01-23 08:52
樓主是對的,但是這是道計算題吧,并非實(shí)用。中國的三相電壓是380伏,你用 三相220V,27KW。這需要大功率變壓器。

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