Research on the Prebreakdown Current of the Laser-Triggered Vacuum Switch

被引：8

作者：

Huang, Zucheng ^{[1
,2
]}

Xiang, Bin ^{[3
]}

Cao, Xiangwei ^{[4
]}

Zong, Yun ^{[3
,5
]}

He, Zhenghao ^{[1
]}

Mao, Xiaopo ^{[3
]}

Zhang, Yaodong

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Hubei, Peoples R China

[2] Guangzhou Zhiguang Elect Co Ltd, Guangzhou 510000, Guangdong, Peoples R China

[3] State Grid Hubei Elect Power Co Ltd, Elect Power Res Inst, Wuhan 430077, Hubei, Peoples R China

[4] China Tobacco Hubei Ind Cigarette Mat Co Ltd, Wuhan 430040, Hubei, Peoples R China

[5] Shijiazhuang Informat Engn Vocat Coll, Commun Engn Dept, Shijiazhuang 050035, Hebei, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2018年 / 46卷 / 02期

关键词：

Initial plasma; laser-triggered vacuum switch (LTVS); prebreakdown current; DELAY CHARACTERISTICS; ELECTRODE;

D O I：

10.1109/TPS.2018.2792010

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The prebreakdown current flowing in a laser-triggered vacuum switch (LTVS), investigated in this paper, is below the threshold voltage, where the switch becomes conducting. The laser irradiates in a short time the sintered KCl and Ti target of the vacuum switch and produces an initial plasma. The prebreakdown currents are measured in two different electrode geometries (planar and multirod) at both polarities and analyzed with respect to the ion and electron interactions with the electrodes. It is found that the peak value of the prebreakdown current increases with the applied voltage across the LTVS until 60 to 80 V, where it turns instantly into the conducting state. The multirod and planar LTVSs show different prebreakdown currents at different polarities, which is related to the condition of becoming conducting.

引用

页码：410 / 414

页数：5

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