基于磁流体动力学的交流接触器分断电弧形态研究

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中图分类号：TM572.2 文献标志码：A 文章编号：2095-8188（2025）05-0034-09

DOI：10.16628/j.cnki.2095-8188.2025.05.005

Abstract：Based on magnetohydrodynamics （MHD） theory，a 3D arc motion model for the dynamic breaking of contacts is established to simulate inthepractical industrial products，makingthe simulation model closer tothe real physical conditionsofarc interruption.The arcmotion process after interruption under diferent initial currents is analyzed.High-speed photography technology is used to carryout the relevant experiments.The comparison and verification with thesimulationresults fully demonstrate theeffctiveness of thesimulation model.Through the simulation studyof arcs interuption under different currents，the location and causes of arc stagnation in the structureare pointedout，thereasons fortheaggravationofarcstagnation during the interuptionof large currents are analyzed，and the theoretical guidance is provided for thesubsequent research and development of such products.

Keywords：contactor；air arc；arc simulation；multi-physics simulation；arc chamber

0 引言

交流接触器作为电气系统中的关键组件，其作用是通过机械开关操作实现电路的接通与分断，尤其在工业自动化和配电系统中扮演着不可或缺的角色。（剩余9814字）