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功率400千瓦电流是多少

2025-04-06 21:57:38

推荐回答（2个）

回答1：

电动机的电流计算公式
三相电动机：
功率1千瓦

每相2（安）；
电流(安）=功率（千瓦）*1000/1.73*380*力率*效率；
备注：力率：以0.85计算；效率：以0.85计算；
三相180千瓦电动机的功率电流是360a；

回答2：

由I=P/U
可知，用电器正常工作时，通过用电器的电流等于实际功率除以工作电压。
你没告诉该用电器的工作电压，我推测应该为通常的220V，那么工作电流应该约为400KW/22V=1.8KA

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