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45kw380v用多大电缆
更新时间: 2019-04-14 00:00:00  

1、正常情况下,380V电路功率45kw的电机需要用25平方以上铜线。

2、电流4102=45000/380/1.732/0.8=85.5A,取25平方以上铜线。

3、如果三相1653略有不平衡,某相电流可能超过90A,要相应增加电线截面积。

4、如果允许,应采用星--三角起动转换,或软起动,否则,也要相应增加电线截面积。

关键词: 45kw380v 电缆

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