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415v 11kw 电机电流是多少

2025-03-31 18:50:41

推荐回答（3个）

回答1：

取功率因数为0.9，额定电流应该是：I=P/(√3Ucosφ)=11000÷(√3×415×0.9)=17A。

回答2：

11KW是电动机输出机械功率，它的输入电功率应除以效率；
所以： P=√3UIcosφη；
11000=1.732x415xIx0.85x0.9；
电流应为：I=11000/(1.732X415X0.85x0.9)=20A；

回答3：

功率因数是多少？

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