1000 kV特高压输电线路笼式硬跳线电晕放电分析与处理  

Corona Discharge Analysis and Treatment of Cage-type Rigid Jumper on 1 000 kV UHV Transmission Lines

作　　者：李博亚 宋金根[1] 吴坤祥[1] 刘红鑫[1] 

机构地区：[1]国网浙江省电力公司检修分公司,杭州311232

出　　处：《浙江电力》2017年第6期12-15,共4页Zhejiang Electric Power

摘　　要：1 000 k V特高压交流输电线路具有输电能力强、覆盖范围广、网损小的优势,但同时也存在电场环境复杂、运行风险高等特点。笼式硬跳线是特高压线路建设中常用的连接方式,其所处电场环境较为复杂,电晕比普通线路更为严重,甚至会产生明显异响,严重影响线路安全运行。通过对特高压线路笼式硬跳线电晕放电的电气特性和结构特性进行分析,给出了调整转接点结构、增大导线截面2种处理措施,并结合现场监测数据评估了改善效果,为今后处理类似缺陷提供了参考。1 000 kV UHV AC transmission lines have advantages of large transmission capability,wide cov-erage and small transmission loss,but it also has the characteristics of complicated electric field and high op-erational risk. Cage-type rigid jumper is the most commonly used connection in the construction of UHV lines. The electric field environment is complicated,the corona is more serious than that of ordinary lines and there is even abnormal sound,affecting line operation safety seriously. Through electrical characteristics and struc-tural characteristic analysis on corona discharge of the cage-type rigid jumper on 1 000 kV UHV transmission lines,the paper brings forward countermeasures such as transfer point structure adjustment,line section in-crease 曰 moreover,it evaluates the transformation effect in accordance to field monitoring data,providing ref-erence to treatment of similar defects in the future.

关 键 词：特高压 输电线路 笼式硬跳线 电晕放电 分析处理 

分 类 号：TM75[电气工程—电力系统及自动化]