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賀海濤
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樓主  發(fā)表于: 2014-04-02 20:54
     談?wù)勅嗨木�(xiàn)電度表怎樣選互感器
hz958
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1樓  發(fā)表于: 2014-04-02 21:11
三相四線(xiàn)電度表(5A  固定) 與互感器XXX比5匹配.
lixiangyang
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2樓  發(fā)表于: 2014-04-02 21:15
互感器的二次側電流都是（5A），主要看你一次側的負載電流來(lái)選互感器。一次電流比除以二次側的電流比，在乘以電表的讀數就是總的電量。

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