电力勘测设计Issue(2)：22-26,88,6.DOI:10.13500/j.dlkcsj.issn1671-9913.2026.02.004
交流特高压线路抑制过电压避雷器安装方案研究
Research on the Installation Scheme of Overvoltage Surge Arresters for AC Ultra High Voltage Transmission Lines
王征 1米凯 1郭瑞 1杨磊1
作者信息
- 1. 中国电力工程顾问集团西北电力设计院有限公司,陕西 西安 710075
- 折叠
摘要
Abstract
Some substations and transmission lines in a UHV AC project in Southwest China are located in high-altitude areas.As the air gap discharge voltage decreases significantly with increasing altitude,this may lead to enlarged insulation clearances,increased equipment dimensions,and higher construction costs.Deep control of switching overvoltage levels in high-altitude UHV projects can effectively reduce tower head dimensions and improve project economy.By installing a set of metal oxide arresters with rated voltage of 780 kV at the mid-point of the transmission line,the switching overvoltage level can be controlled within 1.5 p.u.Based on preliminary scheme drawings of overvoltage suppression arresters,this paper proposes an installation scheme for UHV AC transmission line overvoltage suppression arresters.关键词
交流特高压/操作过电压/空气间隙/避雷器Key words
AC UHV/switching overvoltage/air gap/lightning arrester分类
信息技术与安全科学引用本文复制引用
王征,米凯,郭瑞,杨磊..交流特高压线路抑制过电压避雷器安装方案研究[J].电力勘测设计,2026,(2):22-26,88,6.
