高海拔地区500KV输电线路防雷保护研究

摘要

本研究通过分析2007～2010年间二滩水电站到普提开关站之间的三条500KV输电线路的雷击跳闸资料，针对二普线跳闸次数、跳闸区段、对应地形特征各方面特点，提出了提高地闪密度大的特定区段防雷保护水平的建议。该研究可以为电力部门做好输电线路防雷保护工作提供一定参考。%According to the analysis of lightning trip data of three 500 kV transmission lines between Ertan hydropower station and Puti switch station in 4 years from 2007 to 2010, aiming at various aspects of characteristics of trip frequency, trip section and corresponding terrain feature of transmission lines between Ertan and Puti, this paper presents some suggestions on improving the level of lightning protection in specific sections with big density of ground flash. This paper provides some references for power departments to improve the lightning protection of transmission lines.