李博亚,宋金根,吴坤祥,刘红鑫
LI Boya,SONG Jingen,WU Kunxiang,LIU Hongxin

• 1:国网浙江省电力公司检修分公司

摘要(Abstract)：

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 k V UHV AC transmission lines have advantages of large transmission capability, wide coverage and small transmission loss, but it also has the characteristics of complicated electric field and high operational 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 structural characteristic analysis on corona discharge of the cage-type rigid jumper on 1 000 k V UHV transmission lines, the paper brings forward countermeasures such as transfer point structure adjustment, line section increase; moreover, it evaluates the transformation effect in accordance to field monitoring data, providing reference to treatment of similar defects in the future.

关键词(KeyWords)： 特高压;输电线路;笼式硬跳线;电晕放电;分析处理
UHV;transmission line;cage-type rigid jumper;corona discharge;analysis and treatment

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李博亚,宋金根,吴坤祥,刘红鑫
LI Boya,SONG Jingen,WU Kunxiang,LIU Hongxin

DOI: 10.19585/j.zjdl.201706003

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