直流绝缘子串污秽闪络特性研究  

Contamination Flashover Performance of DC Insulator Strings

作　　者：李武峰[1] 范建斌[1] 李鹏[1] 宿志一[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100085

出　　处：《电网技术》2006年第15期21-24,共4页Power System Technology

摘　　要：介绍了用于±500kV高压直流输电系统的直流绝缘子串污秽闪络特性的研究结果和中国电力科学研究院±600kV直流污秽试验装置,进行了与国外2个实验室的比对试验,验证了污秽耐受电压与绝缘子串长的线性关系,对污秽均匀分布和不均匀分布情况下的长串悬式绝缘子的污秽闪络电压特性进行了试验研究,得到了大量有价值的试验数据。The results of the research on contamination flashover performance of DC insulator strings for ±500 kV HVDC system are presented and the ±600kV artificial pollution test equipment for DC contamination in China Electric Power Research Institute （CEPRI） is described. After comparing the results of contamination flashover performance of DC insulator strings with those obtained in two labolatories in other countries, the linear relation between pollution withstand voltage and the number of insulator units is verified. Artificial pollution tests on contamination flashover performance of long suspension insulator strings under uniform and non-uniform distribution of contamination are carried out respectively and a lot of valuable test data are obtained.

关 键 词：高压直流输电 绝缘子 污秽闪络特性 人工污秽试验 

分 类 号：TM215.92[一般工业技术—材料科学与工程]