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当三相交流发电机的三个绕组接成星形时,若线电压uBC=380√2sin ωtV, 则相电压为下列式中的哪一个?()

A、20√2sin(ωt+90°)V
B、220√2sin(ωt-30°)V
C、220√2sin(ωt-150°)V
D、220√2sin(ωt+120°)V
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正确答案:

C

答案解析:

暂无解析

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