高功率气体开关长寿命设计和初步实验  

Design and preliminary experiment of high power long lifetime gas spark switch

作　　者：陈林[1] 王凌云[1] 王杰[1] 蒋吉昊[1] 韩文辉[1] Chen Lin;Wang Lingyun;Wang Jie;Jiang Jihao;Han Wenhui(Key Laboratory of Pulsed Power,Institute of Fluid Physics,CAEP,Mianyang 621999,China)

机构地区：[1]中国工程物理研究院流体物理研究所,中物院脉冲功率科学与技术重点实验室,四川绵阳621999

出　　处：《强激光与粒子束》2024年第11期89-93,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(12275255)。

摘　　要：针对初期设计的尼龙外壳同轴三电极开关完成了寿命实验,三只开关样品的寿命分别为20.4万次、43.3万次和15.1万次。根据寿命实验结果同时对开关结构和外壳材料进行了改进,初步实验结果表明,改进后的5只气体开关样品除陶瓷外壳开关提前损坏以外,其余3只有机玻璃外壳开关均已完成30万次寿命实验,并且其自击穿电压各自保持了较好的稳定性,标准偏差未明显变大。补充开展的触发实验结果表明,3只有机玻璃外壳开关触发性能基本稳定。根据自击穿电压的变化情况以及30万次寿命实验后开关的触发延时和抖动等参数,预期改进设计开关的寿命将会超过原初设计开关。The lifetime test of initial designed nylon packaged coaxial three-electrode gas spark switch has finished.It shows that the lifetimes of three switch samples are 204000,433000 and 151000 times,respectively.Based on the test results,an improved design with respect to structure and insulator material of switch is proposed.Preliminary test results show that each of the three switch samples with PMMA insulator has finished 300000 shots,and their self-breakdown voltages keep good stability.According to variation of self-breakdown voltage,the delay time and jitter of switches in triggering experiments,the predicted lifetime of the switch of the improved design will exceed that of the initial former design.

关 键 词：气体开关 长寿命 自击穿电压 

分 类 号：TM836[电气工程—高电压与绝缘技术]