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怎么样看电表的倍率

更新时间: 2020-11-12 00:00:00     

电表的倍率是PT(电压互感器)和CT(电流互感器)的变比的乘积,比如75/5就是15倍;100/5就是20倍等。电能表的倍率一般是指电能表所匹配的互感器的倍率,也称为变比、变流(压)比、电流(压)比,就是缩小的比例。实际的用电量等于电能表的表值乘以倍率。电能表是用来测量电能的仪表,又称电度表,火表,千瓦小时表,指测量各种电学量的仪表,俗称电度表、火表。

关键词: 怎么样 电表

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