线路避雷器在交流特高压大跨越线路中的应用  

Application of Line Surge Arrester in UHVAC Large Span Transmission Line

作　　者：窦婷婷 姚元玺[2] 陈鹏[2] 芦灯[2] DOU Tingting;YAO Yuanxi;CHEN Peng;LU Deng(Shandong Polytechnic College, Jinan 250014, China;Shandong Electric Power Engineering Consulting Institute Ltd., Jinan 250013, China)

机构地区：[1]山东职业学院,济南250014 [2]山东电力工程咨询院有限公司,济南250013

出　　处：《电瓷避雷器》2018年第3期86-90,共5页Insulators and Surge Arresters

摘　　要：以实际1 000 k V大跨越工程为例,依据设计规范确定了大跨越雷电过电压要求的绝缘子片数和空气间隙取值,利用ATP-EMTP建立具有频率特性的输电线路仿真模型,根据实际的绝缘子串长和塔头尺寸计算了大跨越线路的耐雷性能,分析了安装线路避雷器对耐雷性能的影响。结果表明,避雷器显著提高大跨越线路的耐雷水平,降低雷击跳闸率。Based on the actual 1 000 kV long span project, the number of the insulator and the air gap value satisfied lightning overvohage requirements are put forward, according to the design specification. The simulation model of transmission line with frequency characteristic is established by ATP-EM- TP, and the lightning protection performance is calculated, according to the actual length of the insulator string and tower head size, what＇ s more, effect of arrester on lightning protection performance is analyzed. The results show that surge arrester significantly improves the lightning withstand level of large span, reduces the lightning tripping rate.

关 键 词：ATP—EMTP 1000kV 大跨越 耐雷水平 跳闸率 

分 类 号：TM862[电气工程—高电压与绝缘技术]