覆冰棒板间隙直流电晕放电试验及测量  

DC Corona Discharge Test and Measurement in an Icicle to Iced-plate Air Gas System

作　　者：冯杰[1] 司马文霞[1] 余德芬[2] 杨庆[1] 赖向平[1] 张建辉[2] M Farzaneh 

机构地区：[1]重庆大学电气工程学院高电压与电工新技术教育部重点实验室,重庆400044 [2]加拿大魁北克大学西库提米分校CIGELE

出　　处：《高电压技术》2006年第5期1-3,34,共4页High Voltage Engineering

基　　金：国家自然科学基金重大研究计划重点项目(90210026)

摘　　要：研究结果表明,在带电情况下覆冰绝缘子表面冰棱并未完全桥接,在覆冰绝缘子串两端的伞裙之间存在一定的空气间隙。为了研究这种空气间隙对放电发展的影响,提出了冰棒-冰板空气间隙模型。设计了紫外线成像仪CoroCAM IV+和基于虚拟仪器LabVIEW相结合的电晕测量系统。通过对冰棒-冰板空气间隙电晕放电脉冲的测量,证明该测试系统性能良好,能够满足试验测试要求。同时为下一步深入开展覆冰电极系统内空气间隙电晕放电的机理研究提供了试验平台。One of the most evident phenomena found for ice accretion on energized insulators is the frequent presence of air gaps near to HV terminal. In this paper, in order to investigate the influence of air gap existence on discharge development, an icicle to iced-plate model is designed and experimental methods are represented briefly. The measure systems include CoroCAM IV＋ and one current sensor designed as well as one measurement system based on WINDOWS and Lab VIEW platforms. By testing, these systems indicate perfect properties enough to satisfy the further testing requirements for deeply investigating corona discharge and advancing us an overall understanding about flashover developmental processes on ice-covered insulators.

关 键 词：覆冰 空气间隙 电晕放电 紫外成像仪 虚拟仪器 

分 类 号：TM835[电气工程—高电压与绝缘技术]