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变压器的空开选择

更新时间: 2020-10-03 00:00:00     

开关选择原则:1、大于额定电流。150安培的控制变压器,在380伏特侧,额定电流只有150或者是380等于0.4安培。2、大于变压器合闸涌流,3、5到4倍额定电流,0.4乘4即为1、6安培。因此,对此控制变压器而言,380伏特侧,选2到4安培的微型断路器即可。

关键词: 变压器 选择

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