一台三相感应电动机拖动额定恒转矩负载运行,若电源电压下降 ,此时电机的电磁转矩( )。 -题库考试答案搜索网

一台三相感应电动机拖动额定恒转矩负载运行,若电源电压下降 ,此时电机的电磁转矩( )。

单选题

2021-07-17 23:52

A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15453738034067308ad996e6441cf993215958ad584c4image2.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/154537380350505f2aaf37b3a4d50a7c435556d76d61eimage3.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545373803598eb88aec4cdef490e94ccd2fb8a9b40daimage4.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545373803698476ce73ca0404e3b85b23ccbf5151468image5.png">

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正确答案

A

试题解析

标签：新能源科学与工程专升本风电机组设计与制造 2019级第三学期期末考试

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