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guogang
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樓主  發(fā)表于: 2009-11-06 13:29
           互感器與電流表的配套。一個(gè)電流比(200/5A) 一次電流200A，一次卷繞匝數1的互感器，穿一匝主線(xiàn)。接到（100A）的電流表上。電機是18.5KW。正常運行下電流表的電流指示是多少A左右。請那位大哥幫幫忙指教小弟！謝謝各位��！
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1樓  發(fā)表于: 2009-11-06 14:39
18500/380=49
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2樓  發(fā)表于: 2009-11-06 14:45
P=1.732U線(xiàn)IXIAN
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3樓  發(fā)表于: 2009-11-06 14:46
P=UI1.732COSX

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