關務 三相 問!! - 考試
By Susan
at 2015-07-10T17:45
at 2015-07-10T17:45
Table of Contents
http://i.imgur.com/tc8cNIk.jpg
http://i.imgur.com/DNSexIZ.jpg
1.為何含有電源的三相電阻也能這樣轉換?而且電源是依據什麼變成Y時是除以sqrt(3)?
2.感覺饋送線阻抗不用轉阿...怎麼變成12+j9 是他搞錯了嘛?
3.如果問此電路全部的平均功率,有需要包含饋送線上的消耗嘛?
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http://i.imgur.com/DNSexIZ.jpg
1.為何含有電源的三相電阻也能這樣轉換?而且電源是依據什麼變成Y時是除以sqrt(3)?
2.感覺饋送線阻抗不用轉阿...怎麼變成12+j9 是他搞錯了嘛?
3.如果問此電路全部的平均功率,有需要包含饋送線上的消耗嘛?
--
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考試
All Comments
By Mary
at 2015-07-14T03:01
at 2015-07-14T03:01
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