分断速度对触头电弧侵蚀影响的数值分析  

Numeric Analysis of the Influence of Opening Speed on Arc Erosion of Contact

作　　者：陈维 张国钢[1] 柯春俊[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049

出　　处：《低压电器》2009年第9期16-20,共5页Low Voltage Apparatus

基　　金：陕西省自然科学基础研究计划项目资助(2007E222);教育部科学技术研究重点项目资助(105158)

摘　　要：将电弧发展进程与触头分断过程结合起来,建立了电弧侵蚀热传播过程的数学模型。对触头分断过程中的电弧侵蚀现象进行了数值计算,分析了分断速度对输入触头能量、熔池尺寸的影响。分析表明,控制分断速度在一定范围内可有效地减小电弧对触头的侵蚀。Development process of arc and the breaking process of contact were combined to set up the mathematical model of the arc erosion hot disseminate process. Numerical calculation of contact erosion by breaking arc was performed. The impact of opening speed on the power received by contacts and the size of the contact weld pool were analyzed. The results show that it is effective to reduce arc erosion if the opening speed is controlled in assigned area.

关 键 词：电弧侵蚀 触头 熔池 分断速度 

分 类 号：TM501.3[电气工程—电器]