39.以額定電壓直接啟動某三相感應電動機時,啟動電流為 96A,若改以 Y-△降壓方式啟動時,啟動電流約為何?
(A) 28A
(B) 32A
(C) 48A
(D) 96A
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統計: A(4), B(21), C(6), D(1), E(0) #3081609
統計: A(4), B(21), C(6), D(1), E(0) #3081609