摘要
降低接地电阻、架设耦合地线、加强绝缘与不平衡绝缘为现在常用的防雷措施。选取了典型的220 kV同塔双回线路杆塔结构,利用ATP软件建立了输电线路Jmarti模型和绝缘子先导闪络判据模块,对不同防雷措施及不同配置方式下的耐雷水平和跳闸率进行计算,得到各种防雷措施对防止同塔多回线路单回及双回同时闪络的效果,给出典型线路最合理的配置建议。
Reducing ground resistance,mounting coupling ground wire,reinforced insulation and unbalanced insulation are now commonly used lightning protection measures. In order to calculate the lightning withstand level and trip rate of different lightning protection measures and different configurations, get the effect of some lightning protection measures to prevent double-circuit line flashover and the optimal configuration mode and the most reasonable configuration suggestions, typical tower structure of the 220 kV double circuit transmission line and ATP simulation software is used to establish the transmission line Jmarti model and insulator string flashover mode. These results can supply reference for the same type of transmission line.
出处
《陕西电力》
2015年第4期66-69,共4页
Shanxi Electric Power
基金
国家自然科学基金项目(51207113)
关键词
同塔双回
同时闪络
综合防雷
double-circuit line
simultaneous flashover
integrated lightning protection
