摘要
综述复合绝缘子在国内外高压、超高压交直流线路应用情况,实践显示已有的复合绝缘子运行效果良好,提高了耐污闪能力,减少了运行维护的工作量。以云广±800kV直流工程为例,计算表明在耐张串上采用复合绝缘子可以满足相关规程规定,与盘型绝缘子相比具有显著的经济优势。由于在特高压直流线路耐张串应用复合绝缘子尚属首次,因此,云广直流线路中采用复合绝缘子的实践及其运行经验尤其值得关注。
This paper summarizes applications of composite insulators on HV and EHV AC/DC overhead transmission lines worldwide,and it is found that composite insulators have good operation effects with excellent resistance performance against pollution flashovers,and material reduction of the operation and maintenance.With Yunnan-Guangdong ±800 kV DC project as an example,the calculation carried out in this paper shows that composite insulators used meet the stipulated technical requirements in the tension strong,and...
出处
《电网与清洁能源》
2010年第5期15-18,共4页
Power System and Clean Energy
关键词
复合绝缘子
特高压直流
耐张串
悬垂串
composite insulators
UHVDC
tension string
suspension string
