Experimental Research of ZnO Surface Flashover Trigger Device of Pseudo-Spark Switch

作     者：黄忠德 姚学玲 陈景亮 邱爱慈 

作者机构：The State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong University 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2014年第16卷第5期

页      面：506-511页

核心收录：

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by National Natural Science Foundation of China(No.51177131) the New Century Talent Foundation of Ministry of Education of China(NCET-08-0438) 

主　　题：pseudo-spark switch ZnO surface flashover trigger device electron emission charge discharging delay 

摘      要：Pseudo-spark switch（PSS） is one of the most widely used discharge switches for pulse power *** has many special characteristics such as reliability in a wide voltage range,small delay time,as well as small delay *** this paper,the measuring method for the initial plasma of ZnO surface flashover triggering device of PSS is studied and the results of the measurement show that the electron emission charge is mainly influenced by trigger voltage,gas pressure and DC bias *** the bias voltage increases from 2 kV to 6 kV with the gap distancc fixed at 3 mm,the electron emission charge changes from 2 μC to about 6μ*** the gap distance changes from 3 mm to 5 mm with the bias voltage fixed at 2 kV,the electron emission charge increases from 1.5 μC to 2.5μ*** the gap distance is 4 mm,the hold-off voltage of PSS is 45 kV at gas pressure of 2 Pa,the minimum operating voltage is less than 1 ***,the operating scope is from 2.22%to 99%of its self-breakdown *** discharging delay time decreases from 450 ns to 150 ns when the trigger pulse voltage is 1 kV and the discharging voltage is changed from 1 kV to 12 *** the trigger pulse voltage is 6 kV,the discharging delay time is less than 100 ns and changes from 100 ns to 50 ns,and the delay jitters are less than30 ns.