Operating stability of a self-breakdown spark-gap frequency switch rated at a voltage of 300 kV and a switched power of up to 450 J

B. M. Koval’chuk, Yu D. Korolev, E. V. Kumpyak, O. B. Frants, I. A. Shemyakin

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    A test bench for studying two-electrode spark gaps rated at a voltage of 300 kV and a pulse repetition rate of up to 10 Hz and operating in air at elevated pressure. The typical time of pulse charging of a capacitive storage in the bench equals about 100 μs. The object of investigation is a spark gap the operating stability of which at a level of 10% of the rate voltage is achieved by initiating a corona discharge at the prebreakdown stage. It is shown that unstable operation is due to the accumulation of nitrogen oxides in the gap. To maintain the oxide content at an acceptable level, continuous gas purging is applied and necessary gas flow rates are estimated.

    Original languageEnglish
    Pages (from-to)1874-1880
    Number of pages7
    JournalTechnical Physics
    Volume59
    Issue number12
    DOIs
    Publication statusPublished - 17 Dec 2014

    Fingerprint

    spark gaps
    seats
    pulse charging
    switches
    breakdown
    purging
    nitrogen oxides
    electric corona
    pulse repetition rate
    electric potential
    gas flow
    flow velocity
    electrodes
    oxides
    air
    gases

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Operating stability of a self-breakdown spark-gap frequency switch rated at a voltage of 300 kV and a switched power of up to 450 J. / Koval’chuk, B. M.; Korolev, Yu D.; Kumpyak, E. V.; Frants, O. B.; Shemyakin, I. A.

    In: Technical Physics, Vol. 59, No. 12, 17.12.2014, p. 1874-1880.

    Research output: Contribution to journalArticle

    Koval’chuk, B. M. ; Korolev, Yu D. ; Kumpyak, E. V. ; Frants, O. B. ; Shemyakin, I. A. / Operating stability of a self-breakdown spark-gap frequency switch rated at a voltage of 300 kV and a switched power of up to 450 J. In: Technical Physics. 2014 ; Vol. 59, No. 12. pp. 1874-1880.
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