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U_N、I_N、η_N、cos_N分别是三相异步电动机额定线电压、线电流、效率和功
率因数,则三相异步电动机额定功率P_N为。( )

单选题

2021-07-17 23:52

A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484297264897a9ac3eb61ea64454a636be8ed25838e0image5.png" style="font-size: 16.8px; background-color: rgb(255, 255, 255);">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484297436121212e7c88821f485e88f1f627f389c322.png" alt="上传图片">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484297440866b96ea7ce4534489b9a36cad8bee9e7e4.png" alt="上传图片">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484297447766fe57331c4abe4d9c815c9b516a8e8691.png" alt="上传图片">

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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电机学期末考试

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