Emission Current Characteristics of Triggered Device of Vacuum Switch

YAO Xueling(姚学玲); CHEN Jingliang(陈景亮); HU Shangmao(胡上茂)

doi:10.1088/1009-0630/16/4/14

Plasma Science and Technology > 2014 > 16(4): 380-384. > DOI: 10.1088/1009-0630/16/4/14

YAO Xueling(姚学玲), CHEN Jingliang(陈景亮), HU Shangmao(胡上茂). Emission Current Characteristics of Triggered Device of Vacuum Switch[J]. Plasma Science and Technology, 2014, 16(4): 380-384. DOI: 10.1088/1009-0630/16/4/14

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Emission Current Characteristics of Triggered Device of Vacuum Switch

State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China

Funds: supported by National Natural Science Foundation of China (No. 51177131), and the Fundamental Research Funds for the Central Universities of China (No. xjj20100159)

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Received Date: August 01, 2012

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Abstract

Abstract

The characteristics of the triggered vacuum switch (TVS) are obviously influenced by the emission current i e and emission charge of the trigger device. In this paper, an RC charge collector is designed, and the characteristics of emission current i e and collecting charge Q _e of the trigger device are studied. The experimental results indicate that the emission current i e which is produced by the initial plasma has both positive and negative components, and the polarity of the emission current i e depends mainly on the polarity of the bias voltage U Bias . The emission current i e and collecting charge Q _e increase with the increase of the trigger voltage U tr and the bias voltage U Bias . The emission efficient η increases linearly with the increase of the bias voltage U Bias . When the gap distance is 15 mm and bias voltage U Bias is 160 V and trigger voltage U tr is 2.6 kV, the emission efficiency η reaches 6%.
- emission current,
- collecting charge,
- triggered device,
- vacuum switch

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References (14)

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