冰闪故障特点及改造成效分析论证——基于山西电网500kV及以上输电线路  

Analysis and Evaluation on Characteristics of Icing Flashover Faults and its Transformation Effect——based on the Electric Transmission Line of ≥500 kV Power Grid in Shanxi Province

作　　者：何鹏杰[1] 梁灏[1] HE Peng-jie;LIANG Hao(Maintenance Branch of State Grid Shanxi Electric Power Company, Taiyuan, Shanxi, 030032, China)

机构地区：[1]国网山西省电力公司检修分公司,山西太原030032

出　　处：《工业技术创新》2016年第6期1170-1172,共3页Industrial Technology Innovation

摘　　要：山西电网主网输电线路近几年多次发生覆冰和融冰闪络故障，严重影响电网正常运行。对2009～2015年冰闪故障原因进行了统计分析，并提出了各自的针对性措施。经改造，冰闪故障跳闸率降低80%以上，成效显著，为提升山西省电网安全性和稳定性做出了较大贡献。相关措施在气候环境相似的地区也具有较大借鉴价值。In recent years,the main electric transmission line of Shanxi power grid has encounteredflashover faults from icing and ice melting for many times,seriously affecting the normal operation ofthe power grid.The causes of icing flashover faults in the year2009~2015are analyzed statistically,and their respective measures are put forward.After the transformation,the trip rate from flashover faultsreduces by more than80%,which is remarkable,making great contributions to the safety and stability ofthe power grid in Shanxi province.Related countermeasures also have great reference values in the regionsof similar climatic environment.

关 键 词：输电线路 冰闪故障 跳闸率 插花改造 倒V改造 防冰闪复合绝缘子 大盘径绝缘子 

分 类 号：TM7[电气工程—电力系统及自动化]