電力系統 基準電壓 - 考試
By Todd Johnson
at 2016-05-21T18:08
at 2016-05-21T18:08
Table of Contents
問:http://i.imgur.com/ceXp7QB.png 解:http://imgur.com/19TqbXZ
上題是三台單相變壓器接成一台三相變壓器,中間解法可以不用管,因為我想問的是
(b)的基準電壓為啥要除根號3 ? 三相變壓器的單相電壓不是等於原單相變壓器電壓嗎?
差別在Y接的線電壓要乘根號3吧,但此題是Delta接的相電壓,不知是哪裡沒注意到,
請高手幫忙,謝謝
--
上題是三台單相變壓器接成一台三相變壓器,中間解法可以不用管,因為我想問的是
(b)的基準電壓為啥要除根號3 ? 三相變壓器的單相電壓不是等於原單相變壓器電壓嗎?
差別在Y接的線電壓要乘根號3吧,但此題是Delta接的相電壓,不知是哪裡沒注意到,
請高手幫忙,謝謝
--
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考試
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