3[单选题] 直流电动机采用降低电源电压的方法起动，其目的是： A.为了使起动过程平稳 B.为了减小起动电流； C.为了减小起动转矩。 - 查题网

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河南成教 / 河南理工大学

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3[单选题]
直流电动机采用降低电源电压的方法起动，其目的是：

A.为了使起动过程平稳

B.为了减小起动电流；

C.为了减小起动转矩。

D.以上都不对

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河南理工大学

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