A high-current rail-type gas switch with preionization by an additional corona discharge
- Authors: Antipov E.I.1, Belozerov O.S.1, Krastelev E.G.1,2
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Affiliations:
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Joint Institute for High Temperatures
- Issue: Vol 79, No 14 (2016)
- Pages: 1619-1624
- Section: Gas Discharge and Plasma Physics
- URL: https://journal-vniispk.ru/1063-7788/article/view/191318
- DOI: https://doi.org/10.1134/S1063778816140015
- ID: 191318
Cite item
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.
About the authors
E. I. Antipov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: ekrastelev@yandex.ru
Russian Federation, Kashirskoe sh. 31, Moscow, 115409
O. S. Belozerov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: ekrastelev@yandex.ru
Russian Federation, Kashirskoe sh. 31, Moscow, 115409
E. G. Krastelev
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Joint Institute for High Temperatures
Author for correspondence.
Email: ekrastelev@yandex.ru
Russian Federation, Kashirskoe sh. 31, Moscow, 115409; ul. Izhorskaya 13, str. 2, Moscow, 125412
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