一台他励直流发电机由额定运行状态转速下降到原来的60%,而励磁电流和电枢电流都不变,则。( )<br>·<img src="https://zk.995w.com/lqwvjeImg/c5/c5f13d077ead53973a75ae822ccc06d9.png" 下降到原来的60％<br>·<img src="https://zk.995w.com/lqwvjeImg/97/97b805abc63bf65a51cebb5f253b7539.png" 下降到原来的60％<br>·<img src="https://zk.995w.com/lqwvjeImg/c5/c5f13d077ead53973a75ae822ccc06d9.png" 和<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14842957371149ac7b3eb470c41d5beaa89f0611dec36image2.png" 都下降到原来的60％<br>·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14842957371618d13ccaba47b4302895d6b79d1d2aae6image3.png" 下降到原来的60％

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一台他励直流发电机由额定运行状态转速下降到原来的60%,而励磁电流和电枢电流都不变,则。( )
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·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14842957371618d13ccaba47b4302895d6b79d1d2aae6image3.png" 下降到原来的60％

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