火花老炼对真空灭弧室绝缘强度的影响  

Effect of Spark Conditioning Treatment on Electrical Strength of Vacuum Interrupters

作　　者：何俊佳[1] 邹积岩[1] 张汉明[1] 程礼椿[1] 

机构地区：[1]华中理工大学

出　　处：《电工技术学报》1997年第3期33-36,共4页Transactions of China Electrotechnical Society

基　　金：高等学校博士学科点专项科研基金

摘　　要：对真空灭弧室在火花老炼处理前后的绝缘强度变化进行了实验研究，从老炼过程中放电与电极表面的相互作用出发，探讨了大花老炼对提高灭弧室耐压水平的作用机理，分析了影响火花老炼作用效果的诸因素的作用，着重讨论了放电能量对稳定击穿电压的影响，指出放电能量不足是引起冲击火花老炼失效的主要原因。文中还对火花老炼引起的电极材料的二次冶金效应进行了分析。The effect of spark conditioning treatment on electrical strength of vacuum interrupters is studied experimentally . The interaction between electrode surface and discharge plasma is analyzed. The mech- anism of improvement of electric strength, as well as the factors affecting the performance is discussed. lt is proposed that the self-deconditioning phenomenon after impulse treatment is resulted from the inade- tluate discharge energy . Also the re-metallurgy effect during conditioning is described .

关 键 词：灭弧室 真空灭弧室 火花老炼处理 绝缘强度 

分 类 号：TM501.2[电气工程—电器]