Simulation study on arc motion process of DC miniature circuit breakers

被引：2
|
作者：
Xiong, Dezhi [1 ]
Chen, Shidong [2 ]
Xiao, Yu [1 ]
Ma, Chen [3 ]
机构：
[1] State Grid Hunan Elect Power Ltd Co, Hunan Prov Key Lab Intelligent Elect Measurement &, Power Supply Serv Ctr, Metrol Ctr, Changsha, Peoples R China
[2] State Grid Hunan Elect Power Ltd Co, Changsha, Peoples R China
[3] Hebei Univ Technol, State Key Lab Reliabil & Intelligence Elect Equipm, Tianjin 300130, Peoples R China
来源：
AIP ADVANCES | 2023年 / 13卷 / 10期
关键词：
Electric network analysis - Magnetohydrodynamics - Timing circuits;
D O I：
10.1063/5.0174184
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Based on the theory of magnetohydrodynamics, a mathematical model of air arc in the arc extinguishing chamber of a DC miniature circuit breaker was established. By coupling external circuit characteristics and contact movement process, the motion process of the arc was simulated and analyzed. On this basis, the effects of breaking speed, time constant, and magnetic field on the arc motion characteristics were studied. The study showed that increasing the breaking speed appropriately and adding appropriate magnetic field can improve the breaking performance of DC miniature circuit breakers. The research results can provide reference for the optimization design of DC miniature circuit breakers.
引用
收藏
页数：8
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