摘要
从5个方面分析了目前我国6 kV~35 kV中压电网雷害事故发生的原因和防雷保护措施的现状,并且分析了防雷保护存在的问题。根据存在的问题,提出了完善避雷器保护、改善中压电网杆塔和防雷装置的接地、线路容易遭受雷击的杆塔加装避雷针或架设避雷线、使用钳位绝缘子、提高自动重合闸的投运率和加强中压电网的运行维护等措施。
The current situation of lightning protection measures and the reasons of the accident caused by lighting in present 6 kV -35 kV power grid are analyzed from 5 aspects, and the problems of lighting protection are also analyzed. According to the existing problems the improvement measures are proposed such as improving the surge arrester protection as well as the grounding of medium voltage power grid tower and lightning protection device, adding lightning rod or ground wire on the tower vulnerable to lightning, using clamp insulator, improving the operation rate of automatic reclosing, strengthening the operation and maintenance of the medium voltage grid
出处
《电瓷避雷器》
CAS
北大核心
2012年第5期90-93,共4页
Insulators and Surge Arresters
关键词
中压电网
防雷装置
避雷器
接地
雷害事故
Medium voltage grid
lightning protection devices
arrester, grounding, lightning accidents