13问答网 > 660v电压250kw防爆电机的额定电流是多少

660v电压250kw防爆电机的额定电流是多少

2025-03-15 14:46:34
推荐回答（1个）
回答1：

应该是三相交流电动机吧?电机比较大，效率取90%，功率因数取90%，于是：
P=√3UIcosφη
I=P/(√3Ucosφη)=250/(√3×660×90%×90%)=0.27(kA)=270A
答：660v电压250kw防爆电机的额定电流是270A。

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