Analysis on Electric Field Calculation of UHV ZnO Surge Arrester

YANG Yaqian; LUO Richeng; GUO Tianwei; LI Tengfei; WU Dong

doi:10.13296/j.1001-1609.hva.2019.02.001

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Analysis on Electric Field Calculation of UHV ZnO Surge Arrester

更新时间：2025-04-26

- Analysis on Electric Field Calculation of UHV ZnO Surge Arrester
- High VoltageApparatus Vol. 55, Issue 2, Pages: 1-7(2019)
- 作者机构：
  
  1. 长沙理工大学电气与信息工程学院
  2. 淄博供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.02.001
  CLC： TM862
- Published：2019
- 稿件说明：
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[1]杨雅倩,罗日成,郭天伟,李腾飞,吴东.特高压氧化锌避雷器电场分布计算[J].高压电器,2019,55(02):1-7.

YANG Yaqian, LUO Richeng, GUO Tianwei, et al. Analysis on Electric Field Calculation of UHV ZnO Surge Arrester[J]. High voltageapparatus, 2019, 55(2): 1-7.
[1]杨雅倩,罗日成,郭天伟,李腾飞,吴东.特高压氧化锌避雷器电场分布计算[J].高压电器,2019,55(02):1-7. DOI： 10.13296/j.1001-1609.hva.2019.02.001.

YANG Yaqian, LUO Richeng, GUO Tianwei, et al. Analysis on Electric Field Calculation of UHV ZnO Surge Arrester[J]. High voltageapparatus, 2019, 55(2): 1-7. DOI： 10.13296/j.1001-1609.hva.2019.02.001.

摘要

特高压氧化锌避雷器是绝缘配合的基础

避雷器性能的好坏直接影响整个变电站运行的安全稳定。以1 000 kV变电站用氧化锌避雷器为例

采用Ansoft Maxwell有限元软件仿真计算其周围电场分布情况

尤其是距离地面2 m高度处

避雷器一侧水平方向上沿线场强大小;并分析避雷器发生损坏时

电场强度变化情况

以及考虑有无高压线、高压引线的长度、求解域大小及底座的高度对电场分布的影响。结果表明:各避雷器损坏情况下

最大场强均有所减小;去除高压线和缩小求解域避雷器周围最大场强增大;缩短高压引线的长度

距地面2 m高度处沿线场强有所增大;提高底座高度

沿线场强减小。研究结果为避雷器电场分析提供了一定的依据。

Abstract

Surge arrester used for UHV power systems is a base of insulation co-ordination.The safety and stability to whole substation is directly influenced by the characteristics of surge arrester.A case study of 1 000 kV ZnO surge arrester for substation

the simulation calculation of electric field around arrester

especially the field strength which from the ground 2 m height along the level of the side of surge arrester is carried out by using finite element analysis software Ansoft Maxwell.Analyzing the changes of field strength when arrester damage occurs and considering the influence of the high-voltage line

length of high-voltage lead

the size of solving domain and the height of base on electric field distribution.The results demonstrate that the maximum field strength around the surge arrester has reduced when the arrester damage occurs in different section

and it would increase through removing the high voltage line and reducing the solution domain.Shortening the length of high-voltage lead

the field strength has increased which from the ground 2 m height along the level of the side of surge arrester.However

the electric field strength decreases when heighten the base.The results of study provide a support for electric field analysis of ZnO surge arrester.

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