Stability of Triggering of the Switch with Sharply Non-Uniform Electric Field at the Electrode with Negative Potential


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Results of investigations into a two-electrode high-pressure gas switch with sharply non-uniform field at the electrode with negative potential operating in the self-breakdown regime with pulsed charging of a highvoltage capacitive energy storage for ~100 μs to voltage exceeding 200 kV are presented. It is demonstrated that depending on the air pressure and the gap length, the corona-streamer discharge, whose current increases with voltage, arises in the switch at a voltage of 0.2–0.3 of the self-breakdown voltage. At the moment of switch self-breakdown, the corona-streamer discharge goes over to one or several spark channels. The standard deviation of the triggering moment can be within 1.5 μs, which corresponds to the standard deviation of the self-breakdown voltage less than 2 kV. The voltage stability can be better than 1.5%.

作者简介

B. Kovalchuk

Institute of High-Current Electronics of the Siberian Branch of the Russian Academy of Sciences

Email: physics@mail.tsu.ru
俄罗斯联邦, Tomsk

A. Zherlitsyn

Institute of High-Current Electronics of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk Polytechnic University

Email: physics@mail.tsu.ru
俄罗斯联邦, Tomsk; Tomsk

E. Kumpyak

Institute of High-Current Electronics of the Siberian Branch of the Russian Academy of Sciences

Email: physics@mail.tsu.ru
俄罗斯联邦, Tomsk

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