摘要
针对广西电网输电线路雷击跳闸故障频发的现状,基于雷电定位系统的监测数据,分析总结广西电网2013年1-8月110kV及以上输电线路雷害的原因及特点,并分析线路遭受雷击与雷电流幅值、杆塔所在位置的地形地貌、杆塔接地电阻值等的关联程度。结合广西电网的实际情况,提出应对线路雷害问题的一些措施。
According to the frequent lightning trip-out accidents in transmission line in Guangxi power grid, reasons and characteristics of 110kV and above voltage transmission lines lightning hazard from January to August in 2013 in Guangxi power grid are analyzed and summarized based on the monitoring data from lightning location system,. The rational degree among the lightning strike ,the magnitude of lightning current,the topography and geomorphology of tower location,the ground resistor of the tower and so on are analyzed. Measures against transmission line lightning hazard are proposed ba.~ed on the actual situation of Guangxi power grid.
出处
《广西电力》
2013年第6期72-75,共4页
Guangxi Electric Power
关键词
输电线路
雷击跳闸
绕击
反击
雷电定位系统
transmission line, lightning trip-out, shielding failure, back striking, lightning location system
