電力系統計算不懂,求教感恩。 - 考試
By Aaliyah
at 2015-10-29T17:10
at 2015-10-29T17:10
Table of Contents
各位好,初學電力系統,真的有些地方不太懂!
這個問題是網路上的網友發問的,紅色圈起來的地方,我不懂!
請求各位高手幫忙點醒一下!
題目:
http://imgur.com/qlFvxuV
解答1:
http://imgur.com/sdDEpIh
解答2:
http://imgur.com/HFbBWcp
紅色框起來的地方我不懂
W1=Vab IaA cos(Theta-30)
W2=Vcb IcC cos(Theta+30)
這是怎麼推出來的?
P=W1+W2
把它想成是個別功率相加等於總功率?
Q=根號3 (W2-W1)
這是怎麼推導出來?
解答3:
http://imgur.com/PrV6VGQ
謝謝各位 拜託幫忙求教學!
--
這個問題是網路上的網友發問的,紅色圈起來的地方,我不懂!
請求各位高手幫忙點醒一下!
題目:
http://imgur.com/qlFvxuV
解答1:
http://imgur.com/sdDEpIh
解答2:
http://imgur.com/HFbBWcp
紅色框起來的地方我不懂
W1=Vab IaA cos(Theta-30)
W2=Vcb IcC cos(Theta+30)
這是怎麼推出來的?
P=W1+W2
把它想成是個別功率相加等於總功率?
Q=根號3 (W2-W1)
這是怎麼推導出來?
解答3:
http://imgur.com/PrV6VGQ
謝謝各位 拜託幫忙求教學!
--
Tags:
考試
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