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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？
解振斌
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1樓  發(fā)表于: 2021-01-22 14:14
不好意思看錯了抱歉了，我是按照線(xiàn)電壓380V算的  



                         三相電加熱        線(xiàn)電壓220V時(shí) 單根加熱管220V     27kw=70.2A    相電流40.5A
                         三相電加熱        線(xiàn)電壓380V時(shí) 單根加熱管220V     27kw=41A       星接線(xiàn)電流等于相電流27A

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