[問題] 電機機械問題
http://imgur.com/a/4Vzxc
如圖
第二張圖是題目
第3,1張圖是解答
我想問的是第二小題我在解答圈起來的那部份
一次側和三次側的Ibase是根據哪些數據來的呢？
有請高手解答
非常感謝!!
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