摘要
通过对近几年输电线路跳闸次数统计和原因分析,得出雷击是线路跳闸的主要原因,从而对雷击故障类型及判据和雷击闪络特征进行了阐述,提出雷击故障防治措施。针对海东电网35-330 kV线路的运行状况和实际条件,提出相应的雷害防治方案。
According to statistic of transmission line trip times and reason analysis,it obtains that lighting is the main reason of line trip.The paper expounds lighting fault type and lightning flashover characteristics,and puts forwards preventive measure of lighting fault.For operation situation and actual condition of Haidong power grid 35- 330 kV line,it puts forward corresponding lighting disturbance＇s prevention scheme.
出处
《青海电力》
2009年第A02期66-68,共3页
Qinghai Electric Power
关键词
输电线路
保护角
耐雷水平
可控避雷针
接地电阻
transmission line
protection angle
Lightning withstand level
controllable arrester
grounding resistance
