直流输电线路绝缘子串片数的防污设计  

Selection of Numbers of Insulator of Pollution Insulator Strings for DC Transmission Line

作　　者：吴光亚[1] 蔡炜[1] 卢燕龙[1] 肖勇[2] 赵全江[3] 薛春林[4] 

机构地区：[1]国家电力公司武汉高压研究所,武汉430074 [2]国家电力公司南方公司,广州510620 [3]中南电力设计院,武汉430071 [4]华东电力设计院,上海200063

出　　处：《高电压技术》2001年第6期51-53,共3页High Voltage Engineering

摘　　要：介绍了国内外对直流绝缘子积污特性和污耐压特性的现状。为防止直流线路污闪 ,提出了应重点研究直流电压下的爬电比距和不同型式绝缘子受上、下表面不均匀积污及灰密影响下的直流污耐压特性等课题 。In this paper the overseas and domestic research situation of anti-pollution performance and withstand voltage at pollution condition for DC insulators is introduced. For preventing pollution flashover of DC line, it is put forward to investigate leakage distance under DC voltage and withstand voltage performance at pollution condition for different type insulators influenced by nonuniformity pollution distribution and ash density at top and bottom. Also the anti-pollution design principle based withstand voltage at pollution condition which is obtained from real tests is recommended.

关 键 词：直流输电线路 绝缘子 串片数 防污 设计 

分 类 号：TM216[一般工业技术—材料科学与工程]