低压电器空气电弧的近期研究进展  

Research Progress on Air Arc of Low Voltage Electrical Appliances

作　　者：李兴文[1] LI Xingwen(State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University, Xi’an 710049,China)

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：《电器与能效管理技术》2018年第22期12-19,共8页Electrical & Energy Management Technology

摘　　要：介绍了近期电弧磁流体动力学仿真方法的应用,特别是多触头并联系统的电弧运动、频率对电弧运动过程的影响,以及触头烧蚀仿真的研究。针对低压系统,阐述了基于故障电弧电特性、故障电弧电磁辐射特性和故障电弧弧声特性等,进行故障电弧检测的方法。针对栅片灭弧室的优化设计,提出通过测量栅片电压可较为细致地评估灭弧室的性能。The recent application of MHD simulation method was introduced,such as the arc motion in multi-parallel contact system,the influence of frequency on arc motion and the electrode erosion simulation.Then for the detection of arc fault in low voltage system,the complete algorithms were proposed based on the electrical characteristics,electro-magnetic radiation and arc sound characteristics.To meet the requirement of optimization design of arc quenching chamber,it is proposed that the performance of arc quenching chamber could be evaluated by measuring the voltage of splitter plates.

关 键 词：磁流体动力学 触头烧蚀 故障电弧 电弧运动 灭弧室 

分 类 号：TM501.2[电气工程—电器]