摘要:氮气(N_2)易获取、无污染、在不均匀电场下有很高的稳定性等特点,采用SF_6/N_2混合气体替代有强温室效应的六氟化硫(SF_6)气体逐渐成为研究的热点,并且在部分电气设备中已经有所应用。本文以气体动力学方程为基础,考虑了带电粒子的碰撞,仿真得到SF_6/N_2混合气体电弧形成过程及其中微观电子密度的时变规律,并分析了混合气体组分对电弧形成过程的影响,从微观上加深了对SF_6/N_2混合气体特性的认识。
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