|
|
|
| The Analysis of an Unconventional Fault in 35kV Automatic Switching Device |
| Tang Qijun, Ning Guoli, Wang Zhiyuan, Wang Xinming, Gong Zhixin |
| State Grid Tianjin Power Chengnan Power Supply Branch, Tianjin 300000 |
|
|
|
|
Abstract This paper showed a malfunction of 35kV automatic switching device caused by the superior protection action on 110kV incoming line. Based on the message of protection action, by theoretical analysis and systematic test, it was affirmative that the inconsistent logic of internal timers in automatic switching devices was the main reason leading to this accident. And an effective solution on that problem was proposed at the end of the paper.
|
|
Published: 20 July 2017
|
|
|
|
| Cite this article: |
|
Tang Qijun,Ning Guoli,Wang Zhiyuan等. The Analysis of an Unconventional Fault in 35kV Automatic Switching Device[J]. Electrical Engineering, 2017, 18(7): 100-102.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2017/V18/I7/100
|
[1] 杨炼, 范春菊, 邰能灵, 等. 基于继电保护与改进算法的储能电站选址定容[J]. 电工技术学报, 2015, 30(3): 53-60.
[2] 刘佐华. 110kV变电站备自投动作不成功原因分析及补救措施[J]. 电力系统保护与控制, 2009, 37(2): 91-92.
[3] 刘琦, 罗智涛. 一起备自投举动事故分析[J]. 电气技术, 2015, 16(6): 128-129.
[4] 林茂. 110kV内桥接线变电站电压电流回路自投的改进[J]. 电气技术, 2015, 16(4): 81-85.
[5] 邹先荣. 35kV变电站备自投装置的一次非典型故障[J]. 云南电业, 2005(4): 35-36.
[6] 罗勋华, 黄纯, 潘志敏, 等. 基于序分量无功功率的单相自适应重合闸[J]. 电工技术学报, 2016, 31(11): 149-156. |
|
|
|
2017, Vol. 18 
