110 kV同塔六回输电线路耐雷性能分析  

Analysis on the Lightening Performance of 110 kV Sextuple Circuit Transmission Lines

作　　者：周海宏 谭蓉 顾悦[3] 任子媛 王冬灵 ZHOU Haihong;TAN Rong;GU Yue;REN Ziyuan;WANG Dongling(State Grid Shaanxi Electric Power Company,Xi'an 710048,China;China Energy Construction Group Shaanxi Electric Power Design Institute Co.,Ltd.,Xi'an 710054,China;College of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,China;Jiangsu Fengdong Thermal Technology Co.,Ltd.,Yancheng 224100,China)

机构地区：[1]国网陕西省电力公司,西安710048 [2]中国能源建设集团陕西省电力设计院有限公司,西安710054 [3]西安交通大学电气工程学院,西安710049 [4]江苏丰东热技术股份公司,江苏盐城224100

出　　处：《电瓷避雷器》2018年第6期59-63,68,共6页Insulators and Surge Arresters

摘　　要：同塔六回输电线路杆塔高、引雷面积大,更易遭受雷击,110 kV线路绝缘水平相对较低,雷击线路引起跳闸的概率较大,研究110 kV同塔六回输电线路的耐雷性能有着重要的意义。本文采用EGM击距法,计算了110 kV同塔六回线路的绕击跳闸率,分析了导线间的屏蔽效应和地面倾角对线路绕击跳闸率的影响。利用电磁暂态软件EMTP-ATP,对110 kV同塔六回线路进行仿真。计算了110 kV电压等级同塔双回线路的反击跳闸率,分析了导线排列相序和接地电阻对线路反击跳闸率的影响。将同塔并架六回输电线路的雷击跳闸率与传统110 kV输电线路的雷击跳闸率作对比,提出合理建议。Due to the high tower and great area of triggered lightning,the sextuple circuit transmission lines can be more easily stricken by lightning. The insulation level of 110 kV transmission lines is relatively lower which results in higher tripping probability of transmission lines. Therefore,it has significant meaning to carry out the research on lightning striking trip-out rate. Through using EGM,the shielding failure trip-out rates of the 110 kV sextuple circuit transmission lines are calculated and the influence of shielding affect between lines and the grounding obliquity is discussed. Through using Electro-Magnetic Transient Program-EMTP,the 110 kV sextuple circuit transmission lines on the same tower is simulated.The back striking trip rate of the 110 kV sextuple-circuit transmission lines is analyzed. The influences of the hanging position of wires and the ground resistance on back striking trip-out rate are discussed.The trip rates of 110 kV sextuple circuit lines and normal lines are compared and reasonable advice is provided.

关 键 词：同塔并架多回线 绕击 反击 跳闸率 

分 类 号：TM863[电气工程—高电压与绝缘技术]