電力系統問題請教 - 考試
By Ursula
at 2015-10-23T15:12
at 2015-10-23T15:12
Table of Contents
各位前輩好,小弟的朋友最近在準備台電招考,在電力系統方面遇到一些問題無解...
加上小弟本身是學IC設計的,看不太懂電力系統,特來此發文求救...
請各位前輩大大不吝賜教.
問題如下:
電力系統在某一變電所 161kV 匯流排(以500MVA 為容量基準值)之戴維寧等效電路的
正序阻抗、負序阻抗及零序阻抗標么值分別為 j0.2577PU、 j0.2085PU、 j0.1328PU,
若在該變電所 161KV 匯流排發生單相接地故障
Q1.試求該 161kV 匯流排的故障電流約為多少安培?
Q2.若在該變電所 161kV 匯流排發生三相接地故障,接地阻抗 Z=j2.5921 歐姆,試求該
161kV 匯流排的正序故障電流為多少標么?
Q3.承(2)試求該 161kV 匯流排的正序故障電流約為多少安培?
請各位前輩不吝賜教
謝謝
--
加上小弟本身是學IC設計的,看不太懂電力系統,特來此發文求救...
請各位前輩大大不吝賜教.
問題如下:
電力系統在某一變電所 161kV 匯流排(以500MVA 為容量基準值)之戴維寧等效電路的
正序阻抗、負序阻抗及零序阻抗標么值分別為 j0.2577PU、 j0.2085PU、 j0.1328PU,
若在該變電所 161KV 匯流排發生單相接地故障
Q1.試求該 161kV 匯流排的故障電流約為多少安培?
Q2.若在該變電所 161kV 匯流排發生三相接地故障,接地阻抗 Z=j2.5921 歐姆,試求該
161kV 匯流排的正序故障電流為多少標么?
Q3.承(2)試求該 161kV 匯流排的正序故障電流約為多少安培?
請各位前輩不吝賜教
謝謝
--
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考試
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