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1 三相6極感應電動機,電源電壓為220V,頻率為50Hz,若在額定負載下,滑差率(轉差率)為5 %,則電動機滿載時轉軸轉速為何? 95 統測
A 950 rpm
B 1000 rpm
C 1050 rpm
D 1200 rpm

n=(1-S)120fP

=(1-0.05)120×506

=950rpm