電機機械 同步電動機 - 考試

By Selena
at 2017-10-01T21:53
at 2017-10-01T21:53
Table of Contents
http://i.imgur.com/q2CeNxC.jpg
題目及a小題解答如上,想請問a小題的電動機電流,原文書用
80kw算是否錯了,根據P=S*cos(功因角),功
因角可變所以"輸出實功為可變",但是S是額
定(如機上銘牌)不變才對,我的想法是
S=P/pf=100kVA,現在功因調為1,所以Iam=S/
(480*根號3)=120.3A,這一題子敬的書p3-53
就如我上述這樣算的,但是因為原文書解答
很少出錯所以上來求證一下,感謝。
手機排版請見諒。
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