某三相发电机每相绕组电压为220V,在连接成Y形时,如果误将两相绕组的末端X,Y,与另一相的首端C连成-一点(中点),此时电压=( )。
发布时间:2024-12-08
A.127V
B.380V
C.220V
D.110V
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