穿越山区的750kV输电线路防雷技术研究  

Lightning Protection Study on 750 kV Transmission Line Built in Mountainous Region

作　　者：刘孝为[1] 刘渝根[2] 王莉英[1] 云涛 郭磊[1] 

机构地区：[1]陕西电力科学研究院,陕西西安710054 [2]重庆大学电气工程学院,重庆400054 [3]陕西省电力公司,陕西西安710048

出　　处：《陕西电力》2008年第7期17-23,共7页Shanxi Electric Power

摘　　要：陕西电网750 kV输变电工程进入全面建设和发展阶段,为确保穿越山区的750 kV输电线路安全可靠运行,运用国际通用的电磁暂态计算软件(ATP-EMTP),对750 kV线路雷击跳闸进行仿真计算。经过分析计算,给出不同影响因素作用下输电线路的雷击跳闸率,并依此提出了降低穿越山区的750 kV输电线路雷击跳闸率的具体措施。750kV power transmission project in Shaanxi power grid has entered the stage of overall construction and development. For ensuring the safe ＆ reliable operation of 750kV power transmission line built in mountainous region, simulation and calculation are conducted for the light and trip of 750kV power transmission line built in mountainous region by using international general ATP- EMTP. The lighting trip rate under different influence factor is given through analysis and calculation. Specific measures to reduce lighting trip rate of 750kV power transmission line are put forward as well.

关 键 词：750 KV 输电线路 反击 绕击 雷击跳闸率 防雷 山区 

分 类 号：TM863[电气工程—高电压与绝缘技术] TM726.1