Laser-triggered Surface Flashover Characteristics of Al2O3 in Pulsed Voltage

被引：0

作者：

Pan, Ruzheng ^{[1
]}

Wang, Youhua ^{[1
]}

Li, Mintang ^{[2
]}

Pang, LingLing ^{[1
]}

Wang, Jue ^{[3
]}

Yan, Ping ^{[3
]}

机构：

[1] Hebei Univ Technol, Prov Minist Joint Key Lab Electromagnet Field & E, Tianjin 300130, Peoples R China

[2] Military Transportat Univ, Dept Auto Engn, Tianjin 300161, Peoples R China

[3] Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China

来源：

PROGRESS IN POWER AND ELECTRICAL ENGINEERING, PTS 1 AND 2 | 2012年 / 354-355卷

关键词：

surface flashover; pulsed voltage; laser triggered; delay time; jitter time; air; vacuum;

D O I：

10.4028/www.scientific.net/AMR.354-355.1224

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Based on the platform of laser-triggered surface flashover in pulsed voltage, experiment of laser-triggered surface flashover is carried out in air and vacuum condition with pulsed voltage. A single/double harmonic, with wavelength lambda of 1064/532 nm, Q-switched Nd:YAG laser is applied to trigger the surface flashover. The test system consists of flat electrodes and columned insulator. The material of electrode is copper and the material of insulator is Al2O3. Laser pulse's wavelengths are 532nm and 1064nm, and laser is focused with rectangle. The results of experiment show that flashover delay time and jitter time decrease with increase of pulsed voltage or laser energy density, the delay time of 1064nm laser trigger is larger than that of 532nm laser trigger, and the delay time and jitter time in vacuum condition are less than the delay time and jitter time in air condition.

引用

页码：1224 / +

页数：2

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