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A high-current rail-type gas switch with preionization by an additional corona discharge

  • Gas Discharge and Plasma Physics
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Abstract

The characteristics of a high-current rail-type gas switch with preionization of the gas (air) in a spark gap by an additional corona discharge are investigated. The experiments were performed in a voltage range of 10–45 kV using a two-electrode switch consisting of two cylindrical electrodes with a diameter of 22 mm and a length of 100 mm and a set of laterally located corona-discharge needles. The requirements for the position and size of the needles are defined for which a corona discharge is ignited before a breakdown of the main gap and does not change to a sparking form, and the entire length of the rail electrodes is efficiently used. The fulfillment of these requirements ensures stable operation of the switch with a small variation of the pulse breakdown voltage, which is not more than 1% for a fixed voltage-pulse rise time in the range from 150 ns to 3.5 μs. A short delay time of the switch breakdown makes it possible to control the two-electrode switch by an overvoltage pulse of nanosecond duration.

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Authors and Affiliations

  1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe sh. 31, Moscow, 115409, Russia

    E. I. Antipov, O. S. Belozerov & E. G. Krastelev

  2. Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13, str. 2, Moscow, 125412, Russia

    E. G. Krastelev

Authors
  1. E. I. Antipov
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  2. O. S. Belozerov
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  3. E. G. Krastelev
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Corresponding author

Correspondence to E. G. Krastelev.

Additional information

Original Russian Text © E.I. Antipov, O.S. Belozerov, E.G. Krastelev, 2015, published in Yadernaya Fizika i Inzhiniring, 2015, Vol. 6, Nos. 11–12, pp. 609–615.

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Antipov, E.I., Belozerov, O.S. & Krastelev, E.G. A high-current rail-type gas switch with preionization by an additional corona discharge. Phys. Atom. Nuclei 79, 1619–1624 (2016). https://doi.org/10.1134/S1063778816140015

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  • DOI: https://doi.org/10.1134/S1063778816140015

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