一台6极笼型三相感应电动机,接在50Hz的三相电源上,其额定电压U N =380V(星形联结),其参数为R 1 =0.316Ω,X σ1 =0.631Ω,R m =11.09Ω,X m =159.4Ω,R' r =0.439Ω,X' σ2 =0.402Ω,试分别用T形等效电路和简化等效电路计算转速n=975r/min时电动机的定子输入功率和功率因数。
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