未分类题

当降低电源电压到0．8UN时电机的转速；

A.8UN时电机的转速；

【参考答案】

×
降压调速转速计算降压调速时最大转矩Tmax'=0．82λMTN=0．82×2．2TN=1．408TN降压调速......

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