超、特高压直流耐张串复合绝缘子运行性能研究  

Analysis of Operating Performance of Composite Insulators in ±800 kV and ±500 kV DC Tension Strings

作　　者：黎晓辰 袁超[2] 张富春[1] 赵华忠[1] 颜才升[1] 谢从珍 

机构地区：[1]中国南方电网超高压输电公司广州局,广州510000 [2]华南理工大学电力学院,广州510640

出　　处：《高压电器》2015年第8期24-28,共5页High Voltage Apparatus

基　　金：中国南方电网有限责任公司超高压输电公司广州局科研项目(02SDK130011);国家自然科学基金青年基金项目(51107043)~~

摘　　要：复合绝缘子由于其优异的耐污闪性能和良好的技术经济性而越来越多地应用在特高压直流输电线路中。为分析超、特高压直流耐张串复合绝缘子的运行性能,从而为实验室评价现场运行耐张串复合绝缘子的特性和状态提供指导,对8支超、特高压直流线路耐张串复合绝缘子进行了研究,主要包括憎水性测试、水煮及陡波试验、工频电压试验、密封性能试验、机械破坏性试验等。研究结果表明,在超、特高压直流线路已经挂网运行的耐张串复合绝缘子的憎水性能、电气性能和机械性能仍均良好;复合绝缘子可以应用于耐张串上。同时,对今后耐张串复合绝缘子的设计及运行提出建议。Composite insulator has good application prospects in ultra high voltage（UHV）DC transmission lines due to its excellent anti-pollution characteristic and high tech-economic efficiency. To analyze the performance characteristic of tension string consisted of±800 kV and±500 kV DC composite insulators,which could provide reference for evaluating the performance and the status of composite insulators in service,4 pieces of ±800 kV DC composite insulators and 4 pieces of ±500 kV DC composite insulators are selected to be tested. The detection items included pollution measurement,hydrophobicity test,water boiled test and steep front impulse test,power frequency withstand voltage test,seal performance test, mechanical destructive test,et al. The results show that in UHV DC lines has been running for years of tension string composite insulators hydrophobicity,electric performance and mechanical performance are still good; Composite insulator can be used in the tension string. Suggestion for the design and operation of tension string of composite insulator in the future are proposed.

关 键 词：复合绝缘子 特高压 耐张串 运行 电气性能 机械性能 

分 类 号：TM216[一般工业技术—材料科学与工程]