一起110kV避雷线发热问题的分析和处理

doi:10.13296/j.1001-1609.hva.2011.09.012

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一起110kV避雷线发热问题的分析和处理

更新时间：2025-05-17

- 一起110kV避雷线发热问题的分析和处理
- High VoltageApparatus Vol. 47, Issue 9, Pages: 113-116+120(2011)
- 作者机构：
  
  1. 广西电网公司电力科学研究院
  2. 广西电网公司百色供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.09.012
  CLC： TM862
- Published：2011
- 稿件说明：
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[J]. High voltageapparatus, 2011, 47(9): 113-116+120.
DOI：

[J]. High voltageapparatus, 2011, 47(9): 113-116+120. DOI： 10.13296/j.1001-1609.hva.2011.09.012.

摘要

110 kV避雷线发热非常罕见。笔者对接入平果牵引站的110 kV马平牵线的避雷线发热情况进行了现场调查和分析

得出避雷线发热与牵引站部分回流线被盗、地回流电流过大有关。同时利用CDEGS软件建立了仿真模型进行了计算

仿真结果显示

当牵引负荷较大时

避雷线中有较大牵引电流流过。在牵引站进行的现场测试验证了分析的正确性。文章最后提出了整改措施

保证了牵引站的运行安全。

Abstract

Field survey and analysis were performed about a lightning wire heating fault of 110 kV Maping traction line into Pingguo traction substation.It was found that the heating was generated by exceeding ground reflux current due to the missing of a length of reflux line.Simulation of the traction substation by the software CDEGS shows that greater traction current appears in lightning wire when traction load is larger.A test in the traction substation verifies the correctness of the analysis.In addition

some suggestions are offered to ensure safe operation of the traction substation.

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