摘要
基于用于直线变压器型驱动源的多间隙气体开关结构,提出一种环形放电间隙与电晕针并联的气体火花间隙。通过测量间隙耐压过程中电晕放电的伏安特性,研究了气体介质、气压、电晕极性、电晕针长度以及针尖对应电极结构等因素对伏安特性的影响。结果表明:以空气为绝缘气体,负极性电晕可获得较稳定的伏安特性;改变电晕针长度和针尖对应电极结构可方便地实现对电晕放电伏安特性的调节以满足开关要求。
A gas spark gap for LTD（linear transformer driver） switch is studied.The gap has a configuration of an annular gap and a corona needle in parallel.The V-I characteristics of corona discharge in the gap are tested.The effects of different factors including gas types,gas pressures,corona polarity and configuration of the electrode on the V-I characteristics are investigated.The experimental results show that negative corona in electronegative gas has good stability.An effective way to meet the needs of the switch is adjusting the length of the corona needle or the configuration of the electrode.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2012年第4期835-838,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(51077111)
国家重大专项基金项目(02060202)
