磁场作用下分断初速度对直流分断电弧两相燃弧时间影响的研究  

Study on the Influence of Breaking Initial Velocity on Two-Phase Arc Time of DC Breaking Arc under Magnetic Field

作　　者：崔芮华[1] 李超[1] 李振平[1] 

机构地区：[1]河北工业大学河北省电器研究所,天津300130

出　　处：《电器与能效管理技术》2016年第22期6-9,49,共5页Electrical & Energy Management Technology

基　　金：河北省自然科学基金青年基金项目(E2015202143)

摘　　要：开关电器的分断电弧特性是开关电器设计和研制的关键,其中燃弧时间是衡量电弧特征的一个重要参数。考虑分断电弧的抑制因素,以压缩分离电弧试验装置为研究对象,在DC 270 V阻性条件下,分别研究了触头分断初速度、磁场强度对分断电弧金属相和气相燃弧时间的影响,得到了影响规律。Breaking arc properties of switch apparatus are the key of switch design and development and the arc time is an important parameter of arc characteristics. Considering the influence factors of breaking arc,with compression and separation arc experimental device as an objeet and under the condition of DC resistance,the influence of breaking initial velocity and magnetic field intensity on the arc time of metallic phase and gas phase were studied respectively. The influence law of the breaking initial velocity and magnetic field intensity on the arc time was obtained.

关 键 词：直流电弧 磁场强度 金属相 气相 燃弧时间 

分 类 号：TM501.2[电气工程—电器]