Analysis on lightning disturbance and protection of 220kV overhead transmission lines in Tibet power grid
Zhang Hengzhi1, Zhaxi Quda1, Yang Hao1, Wu Xiaorui1, Liu Zehui2
1. State Grid Tibet Electric Power Co., Ltd, Electric Power Research Institute, Lhasa 850000; 2. State Grid Henan Electric Power Co., Ltd, Electric Power Research Institute, Zhengzhou 450000
Abstract：Lightning disturbance is one of the important factors affecting the stable operation of overhead transmission lines. Based on the survey which is to the tripping caused by lightning of 220kV overhead transmission lines of Tibet power grid, the influencing factors such as tower type, span and grounding resistance has been discussed in this paper. As an example, a common pair of lightning protection measures are discussed of 220kV ring network of Lhasa. The conclusions of this paper can provide a useful reference for the lightning protection transformation of transmission lines and the reduction of lightning trip rate.
张恒志, 扎西曲达, 杨浩, 吴晓睿, 刘泽辉. 西藏电网220kV线路雷害故障及防雷措施分析[J]. 电气技术, 2020, 21(4): 122-124.
Zhang Hengzhi, Zhaxi Quda, Yang Hao, Wu Xiaorui, Liu Zehui. Analysis on lightning disturbance and protection of 220kV overhead transmission lines in Tibet power grid. Electrical Engineering, 2020, 21(4): 122-124.
2020, Vol. 21 
