摘要
利用EMTP软件进行仿真,研究同塔多回线路的雷击同时跳闸机理,并以220 kV同塔双回线路为例计算正常情况和一回闪络后避雷线对导线的几何耦合系数,结合绝缘子串两端过电压波形说明同塔多回线路一回闪络后对另一回的影响,为同跳特征的研究和制定防雷措施提供参考和依据。
The paper studies the mechanism of lightning strike simultaneous tripping on multi-circuit transmission line on same tower by EMTP simulation software,and calculates the geometric coupling coefficient of overhead ground wire to wire of typical 220 kV double circuit transmission lines under normal and flashover on one single circuit line circumstances. Combined with the over-voltage waveform at both ends of the insulator strings, the paper illustrates the effect of the flashover on one single circuit line on another single line.
出处
《陕西电力》
2014年第9期44-47,83,共5页
Shanxi Electric Power
基金
国家自然科学基金资助项目(51207114)
关键词
同塔多回
反击
同时闪络
multi-circuit line on same tower
back striking
simultaneous flashover
