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30kw星三角启动，按你的意思配多大的空开、交流和线？

2025-03-26 17:09:23

推荐回答（1个）

回答1：

30KW的三相电机，额定电流约30000/380/1.732/0.8=57A，
电机断路器一般按照工作电流2-3倍选择，即125A-200的空开，整定电流68A
接触器按照额定电流1.2倍选择，即用80A的接触器
用YJV-0.6/1KV-3*16mm2的铜芯电缆。

暂未考虑压降。

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