三相交流同步电机的励磁方式有（）。 -题库考试答案搜索网

三相交流同步电机的励磁方式有（）。

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2021-07-17 23:25

A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 16px; TEXT-DECORATION: none">直流发电机作为励磁电源的直流励磁机励磁系统</span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 16px; TEXT-DECORATION: none">用硅整流装置将交流转化成直流后供给励磁的整流器励磁系统</span>
C、<span style="LINE-HEIGHT: 200%; FONT-FAMILY: 宋体; FONT-SIZE: 16px; TEXT-DECORATION: none">静止整流器励磁系统</span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 16px; TEXT-DECORATION: none">旋转整流器励磁系统</span>

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ABCD

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标签：电力系统自动化技术高起专电机学 2019级毕业清考（考试分） 2020年第二学期补考

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