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<p>It is demonstrated that the process of discharge development in the pseudospark switch at a&#xa0;current of about 1 kA is significantly different for the case of the external switch triggering and for the static breakdown conditions. With external discharge initiation, the current rise is caused by the development of the dense glow discharge with hollow cathode and the superdense glow discharge with the explosive emission processes on the cathode surface. For the static breakdown, the arc cathode spot is formed at an early temporal stage, and the total switching current flows to this spot. Physical reasons for such a&#xa0;peculiarity are discussed.</p>

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Development of the switching process in the pseudospark switch with a trigger unit based on auxiliary glow discharge

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • N. V. Landl,
  • Y. D. Korolev,
  • O. B. Frants,
  • A. V. Bolotov,
  • S. S. Kovalsky,
  • E. V. Ostroverkhov

摘要

It is demonstrated that the process of discharge development in the pseudospark switch at a current of about 1 kA is significantly different for the case of the external switch triggering and for the static breakdown conditions. With external discharge initiation, the current rise is caused by the development of the dense glow discharge with hollow cathode and the superdense glow discharge with the explosive emission processes on the cathode surface. For the static breakdown, the arc cathode spot is formed at an early temporal stage, and the total switching current flows to this spot. Physical reasons for such a peculiarity are discussed.