電工機械問題請教 - 考試

By Todd Johnson
at 2019-09-28T18:44
at 2019-09-28T18:44
Table of Contents
各位好
題目如下
https://imgur.com/0cge1Cm
參考書是說用
n=Eb/Kψ
電壓變2倍,轉速*2倍-這部分了解
但
不懂為何激磁電流減半-轉速要*2倍 ?
麻煩版上高手幫忙開示
謝謝~~
--
題目如下
https://imgur.com/0cge1Cm
參考書是說用
n=Eb/Kψ
電壓變2倍,轉速*2倍-這部分了解
但
不懂為何激磁電流減半-轉速要*2倍 ?
麻煩版上高手幫忙開示
謝謝~~
--
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考試
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