三相异步电动机测量电压时三相电压是平衡的但是三相电流不平衡 这样 三相异步电动机三相电流不平衡规定允许范围
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首先，电机的绕组阻抗不可能一模一样的，
其次，接触器的触点在吸合时的松紧程度，接触面也不是一模一样的，
以上两个原因都会导致电流的不一致。
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