试题与答案

三相异步电动机在额定状态附近运行,当(1)负载增大;(2)电压升高;(3)频率增大时

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题目:

三相异步电动机在额定状态附近运行,当(1)负载增大;(2)电压升高;(3)频率增大时,试分别说明其转速和电流作何变化?

答案:

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参考答案:A, B, C, D, E

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