高海拔地区硅橡胶合成绝缘子电晕老化特征分析  

Analysis on Corona Degradation of Silicone Rubber Composite Insulators in High-Altitude Regions

作　　者：赵书荣 赵鹏选 石俊臣 赵存杰 

机构地区：[1]天津市东甲电力设备防腐科技有限公司,天津300400

出　　处：《河北电力技术》2009年第2期38-40,共3页Hebei Electric Power

摘　　要：模拟高海拔低气压环境,采用多针-板电极放电模型产生电晕电场,分别对硅橡胶合成绝缘子试样进行老化处理,通过静态接触角法测量表面憎水性的变化,分析低气压环境对合成绝缘子电晕老化的影响,得出合成绝缘子的电晕老化速度随着气压的降低而加快等3个试验分析结果。This paper introduces corona electric field is produced by spininess-pin-to-flat electrode model, under the lab condition, with simulated high-altitude region low air pressure,and silicone rubber composite insulator samples are aginged. This paper focuses on effect of corona discharge on surface hydrophobicity of silicone rubber insulator under reduced pressures. The results obtained reveal that under different regions, the corona degradation of composite insulator is accelerated with reducing the pressure. The loss and recovery of surface hydrophobicity show the non-linear characteristics.

关 键 词：硅橡胶合成绝缘子 电晕老化 高海拔地区 憎水性 静态接触角 

分 类 号：TM852[电气工程—高电压与绝缘技术]