Lightning Over-voltage Protection for 500 kV GIS Substation

GAN Ling-xia; LI Lei; LI Jing-lu

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Lightning Over-voltage Protection for 500 kV GIS Substation

更新时间：2025-04-26

- Lightning Over-voltage Protection for 500 kV GIS Substation
- High VoltageApparatus Vol. 45, Issue 6, Pages: 110-114(2009)
- 作者机构：
  
  长沙理工大学电气与信息工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM862
- Published：2009
- 稿件说明：
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[1]甘凌霞,李雷,李景禄.500 kV GIS变电站雷电过电压保护研究[J].高压电器,2009,45(06):110-114.

GAN Ling-xia, LI Lei, LI Jing-lu. Lightning Over-voltage Protection for 500 kV GIS Substation[J]. High voltageapparatus, 2009, 45(6): 110-114.
[1]甘凌霞,李雷,李景禄.500 kV GIS变电站雷电过电压保护研究[J].高压电器,2009,45(06):110-114. DOI：

GAN Ling-xia, LI Lei, LI Jing-lu. Lightning Over-voltage Protection for 500 kV GIS Substation[J]. High voltageapparatus, 2009, 45(6): 110-114. DOI：

摘要

将500 kV GIS变电站和进线段结合起来

考虑绝缘子串冲击伏秒特性、进线段冲击电晕、远近区杆塔冲击接地电阻、落雷点等因素的影响

采用ATP-EMTP对500 kV GIS变电站的雷电侵入波过电压进行了研究。研究表明

冲击电晕、近区杆塔接地电阻对雷电过电压有很大的影响;雷击最靠近变电所终端"门"形塔的杆塔时

过电压有可能不是最严重的;当设备过电压较严重时

母线上增装一组避雷器能有效降低过电压。该研究思路兼顾安全和经济两方面

可为工程提供新的参考。

Abstract

This paper combines incoming lines with a 500 kV GIS substation to investigate the lightning over-voltage of 500 kV GIS substation via ATP-EMTP simulation program with respect to the influences of impulse voltage-second characteristics of insulator strings

impulse corona of incoming lines

impulse grounding resistance of tower

and position of lightning.The result shows that impulse corona and grounding resistance of the tower which is close to the substation exert great influence on over-voltage

maybe the lightning over-voltage is not the maximum when lightning strike the tower which is close to the terminal door-typed structure

and a group of arresters installed on bus can decrease the over-voltage effectively when the over-voltage of the equipment is very serious.This research takes both safety and economy into account to provide a reference for the lightning over-voltage protection of GIS substations.

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