Research of 500 kV Line Surge Arrester for AC System

LI Qingling

doi:10.13296/j.1001-1609.hva.2014.03.014

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Research of 500 kV Line Surge Arrester for AC System

更新时间：2025-04-26

- Research of 500 kV Line Surge Arrester for AC System
- High VoltageApparatus Vol. 50, Issue 3, Pages: 74-78(2014)
- 作者机构：
  
  青岛港湾职业技术学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.03.014
  CLC： TM863
- Published：2014
- 稿件说明：
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[1]李庆玲.500kV交流系统线路型避雷器特性研究[J].高压电器,2014,50(03):74-78.

LI Qingling. Research of 500 kV Line Surge Arrester for AC System[J]. High voltageapparatus, 2014, 50(3): 74-78.
[1]李庆玲.500kV交流系统线路型避雷器特性研究[J].高压电器,2014,50(03):74-78. DOI： 10.13296/j.1001-1609.hva.2014.03.014.

LI Qingling. Research of 500 kV Line Surge Arrester for AC System[J]. High voltageapparatus, 2014, 50(3): 74-78. DOI： 10.13296/j.1001-1609.hva.2014.03.014.

摘要

笔者通过计算分析了安装避雷器前后500 kV线路的耐雷水平的变化

以绕击导线为例

研究了地面倾斜角异同时的最大绕击电流

导线的耐雷计算以及避雷器安装方案不一样时的过电压。指出避雷器只能保护到本级杆塔

邻近的杆塔得不到保护。

Abstract

The change of the tower lightning protection of 500 kV AC system with and without surge arresters is computed. Taking shielding failure as an example

the following parameters are analyzed: the maximum shielding failure current with different inclination angles

lightning protection and lightning excess voltage of the lines

the shielding failure excess voltage at different installation modes of the arrester. It is concluded that the surge arrester can only protect the tower against flashover where the arrester installed

cannot protect the adjacent towers.

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Related Institution

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