Analysis on Fault Current in Reactor Bay with TA Rear-wiring Pattern

WU Yuehua; ZHOU Yongrong; CHEN Hao; CHANG Yanjie; ZHANG Zhen; HE Jiahong

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Analysis on Fault Current in Reactor Bay with TA Rear-wiring Pattern

更新时间：2025-11-18

- Analysis on Fault Current in Reactor Bay with TA Rear-wiring Pattern
- Vol. 40, Issue 5, Pages: 25-29+34(2020)
- 作者机构：
  
  1. 国网江苏省电力有限公司检修分公司
  2. 国网电力科学研究院有限公司
  3. 东南大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM47
- Published：2020
- 稿件说明：
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[1]吴悦华,周永荣,陈昊,常焱杰,张臻,何嘉弘.电抗器间隔TA后置式接线方式的故障电流分析[J].湖南电力,2020,40(05):25-29+34.

WU Yuehua, ZHOU Yongrong, CHEN Hao, et al. Analysis on Fault Current in Reactor Bay with TA Rear-wiring Pattern[J]. 2020, 40(5): 25-29+34.
[1]吴悦华,周永荣,陈昊,常焱杰,张臻,何嘉弘.电抗器间隔TA后置式接线方式的故障电流分析[J].湖南电力,2020,40(05):25-29+34. DOI：

WU Yuehua, ZHOU Yongrong, CHEN Hao, et al. Analysis on Fault Current in Reactor Bay with TA Rear-wiring Pattern[J]. 2020, 40(5): 25-29+34. DOI：

摘要

对500 kV变电站低压侧故障电流进行了理论分析

通过PSCAD仿真

模拟电抗器间隔的不同位置发生故障

分析了变电站35 kV侧电抗器间隔TA后置式接线的情况下电抗器间隔三相故障的电流特征及对继电保护的影响

最后结合实际故障案例

提出了故障判别逻辑的改进方案。

Abstract

The fault current in the low voltage side of 500 kV substation is analyzed theoretically

the different position of the reactor interval is simulated by PSCAD simulation

the characteristics of the three-phase fault current and its influence on the relay protection under the condition of the TA rear connection of the 35 kV side reactors in the substation are analyzed

and an improved scheme of fault diagnosis logic is proposed at last.

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