摘要
为保障超、特高压交流紧凑型输电线路带电作业安全、有效的开展,通过布置典型带电作业工况并进行操作冲击放电试验,对比分析了500 k V、750 k V和1 000 k V交流紧凑型线路带电作业间隙放电特性;分析了多种作业人员进入超、特高压交流紧凑型输电线路等电位的作业方式,通过试验提出采用塔上吊篮法为最优化进出等电位作业方式;研制了超、特高压交流紧凑型输电线路带电作业用保护间隙装置,推荐了相应电压等级线路的带电作业用保护间隙技术参数,并经试验验证保护间隙的安全可靠性。研究成果可为超、特高压交流紧凑型输电线路运行维护提供参考依据。
In order to guarantee the safety and effectiveness of live - line working on EHV/UHV compact transmission line, the typical live - line working conditions of actual operation are arranged, and the gap discharge characteristics during live - line working on 500 kV, 750 kV and 1 000 kV AC compact transmission lines are compared and analyzed. Several methods of en- tering into equipotential area on EHV/UHV AC compact transmission line are discussed, and the optimal way of entering into/ getting out equipotential area is proposed that is the basket method. In addition, the protective gap device is developed for live - line working on EHV/UHV AC compact transmission line, the technical parameters of the corresponding voltage level are recommended, and the reliability of the designed protective gap device is verified through the test. The research results can provide a reference for the operation and maintenance of EHV/UHV AC compact transmission lines.
出处
《四川电力技术》
2015年第6期33-37,55,共6页
Sichuan Electric Power Technology
关键词
超、
特高压输电线路
紧凑型
操作冲击放电特性
保护间隙
EHV/UHV transmission line
compact line
switching impulsive discharge characteristic
protective gap
