【作者】 贾申利； 史宗谦； 王立军； 杨鼎革；

【Author】 Jia Shenli,Shi Zongqian,Wang Lijun,Yang Dingge Xi’an Jiaotong University,State Key Laboratory of Electrical Insulation and Power Equipment

【机构】 西安交通大学电力设备电气绝缘国家重点实验室；

【摘要】 真空电弧主要是由阴极斑点与混合区、弧柱区和阳极区三部分组成,针对这三个区域基本特性的研究对深入理解真空电弧内部物理过程和提高真空断路器的开断能力都具有重要意义。本文主要论述了本课题组在这三个方面的最新研究成果,包括纵向磁场分布对阴极斑点初始扩散过程的影响,不同纵向磁场分布对大电流真空电弧特性的影响、合成磁场对极间阴极射流分布的影响及阳极活动的仿真和实验研究。更多还原

【Abstract】 Vacuum arc is mainly made up of three parts which are cathode spot and mixing zone,arc column and anode zone,the research on the basic characteristics of these three regions is very important to understand the internal physical process of vacuum arc and improve the interruption capacity of vacuum interrupter.This paper focuses on the latest research results in these three regions which include the influence of axial magnetic field distribution on the initial expansion of cathode spots,the influence of different axial magnetic field distributions on high-current vacuum arc characteristics,the influence of composite magnetic field on the cathode spots jets in arc column,as well as the simulating and experimental study of anode activity.更多还原