人工污秽绝缘子工频下叠加雷电冲击的闪络特性研究  

Study of Flashover Characteristics of Artificial Contaminated Insulator under Lightning Impulse Voltage Superimposed on Power Frequency Voltage

作　　者：黄文武[1] 文习山[1] 胡广生 邓维[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072 [2]深圳供电局,广东深圳518001

出　　处：《高压电器》2005年第1期24-25,28,共3页High Voltage Apparatus

摘　　要：为了研究运行中线路污秽绝缘子遭受雷击时的放电特性,提出了人工污秽绝缘子串工频下叠加雷电冲击的闪络试验电路和方法,通过试验,研究了纯雷电冲击下和工频电压叠加雷电冲击下的绝缘子串闪络电压随盐密的变化规律,并分析了其原因。For investigating the flashover characteristics of contaminated-insulator of transmission line in service when exposed to lightning strike, this paper presents test circuit and method which is under lightning impulse voltage superimposed on power frequency voltage. Based on lots of tests, the relation between the flashover voltage of artificial contaminated insulator and the ESDD (equivalent salt deposit density) is investigated and analyzed.

关 键 词：人工污秽 雷电冲击 闪络电压 绝缘子 

分 类 号：TM862[电气工程—高电压与绝缘技术]