电器与能效管理技术Issue(22)：28-34,7.DOI:10.16628/j.cnki.2095-8188.2018.22.005
多物理因素影响下氢气介质直流电弧重击穿现象仿真与试验研究
Simulation and Experimental Research on DC Arc Re-striking in Hydrogen Medium under Multiple Physical Factors
摘要
Abstract
DC arc switching experiments were carried out under different magnetic fields, opening distances, currents and arc extinguishing mediums. The experimental results show that the burning time of arc in hydrogen medium is short, the disturbance is violent and the probability of re-striking is high. On the basis of the MHD theory, the finite element method was adopted to simulate the dynamic process of re-striking of arc in hydrogen medium in the contact gaps and the dynamic distribution of arc in time and space was obtained. Through analyzing the influence of temperature and magnetic field on arc motion during arc re-striking, this paper explains how the restriking of arc in hydrogen medium generates and changes. Finally, a method about how to reduce arc re-striking by use of mixed hydrogen and nitrogen as medium was put forward. The experimental results show that when the H2-N2 ratio is 3: 2, the probability of arc re-striking is the lowest, and the arc extinguishing effect is the best.关键词
混合气体/直流电弧/电弧重击穿/电弧形态Key words
mixed gas/DC arc/arc re-striking/arc shape分类
信息技术与安全科学引用本文复制引用
韩颖,孟令新,侯春光,尚文祥,曹云东..多物理因素影响下氢气介质直流电弧重击穿现象仿真与试验研究[J].电器与能效管理技术,2018,(22):28-34,7.基金项目
国家自然科学基金重点项目 (51337001) （51337001）
辽宁省博士启动基金项目 (201601168) （201601168）
辽宁省教育厅项目 (201734158) （201734158）
