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就是電度錶的讀數與實際電能的關係,電錶的倍率=實際電能/電度錶的讀數.
電壓互感器與電流互感器的倍率相乘 比如電壓互感器10/0.1KV即10/0.1=100倍 電流互感器100/5A即100/5=20倍 再100*20=2000倍 你電錶顯示一度實際則是2000度 低壓電路可以不用電壓互感器
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