当绕线式异步电动机的电源频率和端电压不变,仅在转子回路中串入电阻时,最大转距Tmax和临界转差率sm将( )。 -题库考试答案搜索网

当绕线式异步电动机的电源频率和端电压不变,仅在转子回路中串入电阻时,最大转距T_m_ax和临界转差率s_m将( )。

单选题

2021-07-17 23:24

A、T<sub>m</sub><sub>ax</sub>和s<sub>m</sub>均保持不变
B、T<sub>m</sub><sub>ax</sub>减小,s<sub>m</sub>不变
C、T<sub>m</sub><sub>ax</sub>不变,s<sub>m</sub>增大
D、T<sub>m</sub><sub>ax</sub>和s<sub>m</sub>均增大

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正确答案

C

试题解析

标签：发电厂及电力系统高起专电机学 2019级第三学期期末考试电力系统自动化技术

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