110kV架空线路避雷器安装方式仿真研究  

Study on Simulation of Arresters Installation Style in 110 kV Overhead Lines

作　　者：董新伟[1] 张晓文[1] 刘丽丽[2] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221116 [2]徐州工程学院,江苏徐州221018

出　　处：《电瓷避雷器》2017年第1期47-50,共4页Insulators and Surge Arresters

摘　　要：简单介绍了110 kV输电线路的防雷措施,重点应用PSCAD软件进行仿真建模,模拟雷击杆塔情况,分析研究易击杆塔及附近多基连续杆塔线路避雷器的安装位置对线路耐雷水平、绝缘子串闪络相以及导线中雷电冲击过电压的影响。仿真结果表明,不同的线路避雷器安装方式下,线路的耐雷水平提升变化不尽相同;高于线路最高耐雷水平10%的雷电流造成的绝缘子发生闪络的杆塔和相别有所不同;低于线路最低耐雷水平10%的雷电流造成导线中的雷电冲击过电压峰值和衰减速度均有所不同。结合线路避雷器造价高、工程量大以及实用性,在实际应用中对于110 kV上字型杆塔建议采用两边相安装线路避雷器来提高其防雷效果。The 110 kV transmission line lightning protection measures are briefly introduced. Basedon the PSCAD software, simulation modeling is built , the lightning hit tower is simulated; The towereasy be hit , the installation position of line lightning arrester nearby multi-based continuous towers,and the its influence on the lightning impulse withstand level, flashover of insulators and lines lightningimpulse overvohage are analyzed. The simulation results show that the different line arrester installationmode, the increase of the protection levels of transmission line are not the same; the tower and its phaseof insulator flashover, which caused by the lightning current higher than the highest line insulatorlightning protection level 10%, are different; lightning impulse overvoltage peak and its decay rate inconductor, which caused by the lightning current withstand level lower than 10% of the lowest line, aredifferent. Considering the high cost line attester, the large number of projects and practicability, in thepractical application for 110 kV type tower, in order to improve the lightning protection effect,installing line surge arrester in the two side phase is suggested.

关 键 词：110KV输电线路 安全运行 PSCAD 避雷器 耐雷水平 

分 类 号：TM863[电气工程—高电压与绝缘技术]