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帶互感器的電表怎么讀數?

2015-01-29

  帶互感器的電表怎么讀數?

  先看看電流互感器的倍率,比如75/5、就是15倍,100/5、就是20倍。用上月讀數減去本月讀數乘上倍率就等于本月實用數。

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