复合绝缘子由塑料异物引起的闪络与不明原因闪络  

Composite insulator flashovers caused by plastic foreign matter and unknown reasons

作　　者：于东洋[1] 李琳[1] 陈孟杨 YU Dongyang LI Lin CHEN Mengyang(Electric Power Research Institute of State Grid Heilongjiang Electric Power Co. , Ltd. , Harbin 150030, China State Grid Heilongjiang Electric Power Company Limited, Harbin 150090, China)

机构地区：[1]国网黑龙江省电力有限公司电力科学研究院,哈尔滨150030 [2]国网黑龙江省电力有限公司,哈尔滨150090

出　　处：《黑龙江电力》2017年第3期245-248,共4页Heilongjiang Electric Power

摘　　要：为了解塑料异物对复合绝缘子发生闪路所产生的影响,在人工模拟塑料异物引起复合绝缘子闪络的基础上,对塑料异物引起的闪络机理及闪络条件进行了分析。研究发现塑料异物引起闪络需要较极端的条件(塑料异物破旧程度大并被打湿)。在以往认定的不明原因闪络中,有一部分实际上可归属于塑料异物引起的闪络。In order to understand the influence of plastic foreign matters on causing composite insolator flashovers the artificial simulation is made on composite insulator flashovers caused by the plastic foreign matter. Based on this, the mechanism and the condition of the flashovers is studied. It is founded that the flashover plastic foreign matter could occur under extreme conditions when the matter is damaged severely and caused wet out. by the Prac - tically, some of flashovers which were thought to be caused by unknown reasons may be caused by the plastic for- eign matter.

关 键 词：塑料异物 闪络 复合绝缘子 

分 类 号：TM855[电气工程—高电压与绝缘技术]