首先从感应电动机的等效电路分析得出电动机的圆图,然后举例说明它们的应用计算,从而说明电动机的圆图和等效电路一样,都是分析计算电动机问题的有效工具.%The circle diagram of the induction motor was educed by analyzing the motor's equivalent circuit,then its application to computation was demonstrated by illustration.Thereby the circle diagram was explained to be an effective instrument of analyzing and computing for the motor, as the equivalent circuit.
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