南方电网技术2017，Vol.11Issue(1)：45-51,7.DOI:10.13648/j.cnki.issn1674-0629.2017.01.007
110 kV绝缘杆塔输电线路雷电侵入波过电压研究
Research on Lighting Intruding Wave Overvoltage of 110 kV Insulated Tower Transmission Line
摘要
Abstract
In order to make full use of the efficiency of composite material tower,it is studied to cancel the overhead grounding wire and downward leading wire to form fully insulated tower.Considering loss of discharging path when insulated tower is stroked by lightning, overvoltage caused by resulting intruding wave may do damage to equipment in substation, iron tower is proposed to be used in inlet line to relieve the overvoltage.Lightning withstanding levels of insulated tower and inlet line iron tower are simulated by ATP-EMTP, and the impact of lightning intruding wave on inlet line iron tower and substation, and the necessity of arrester is also studied.The results show that when arresters are not installed, the lighting intruding wave overvoltage(LIWOV) caused by lightning current of 9 kA on 110 kV insulated tower could result in flashover of inlet iron towers and about 800 kV overvoltage on a typical 110 kV substation, while LIWOV withstanding level of iron tower is improved up to about 40~45 kA lightning current and consequential overvoltage of less than 300 kV stressing the substation after installing arresters, which fulfills the requirements of the standard.关键词
复合材料/绝缘杆塔/雷电侵入波/ATP-EMTP/进线段Key words
composite material/insulated tower/lightning intruding wave/ATP-EMTP/inlet line分类
信息技术与安全科学引用本文复制引用
黄志都,邓雨荣,吴彪,陈亚娟,蒋圣超,雷梦飞..110 kV绝缘杆塔输电线路雷电侵入波过电压研究[J].南方电网技术,2017,11(1):45-51,7.基金项目
南方电网公司2016年重点科技项目(GXKJXM20151021) （GXKJXM20151021）
广西壮族自治区2016年重点研发计划项目(2016AB13120).Supported by Key Science and Technology Projects of China Southern Power Grid 2016 (GXKJXM20151021) （2016AB13120）
Key R & D Program of Guangxi Zhuang Autonomous Region (2016AB13120). （2016AB13120）
