Influence of electrode spacing and gas pressure on parameters of a runaway electron beam generating during the nanosecond breakdown in SF6 and nitrogen. Issue 2 (31st May 2017)

• Record Type: Journal Article
• Authors: Tarasenko, Victor F.; Zhang, Cheng; Kozyrev, Andrey V.; Sorokin, Dmitry A.; Hou, Xingmin; Semeniuk, Natalya S.; Burachenko, Alexander G.; Yan, Ping; Kozhevnikov, Vasily Yu.; Baksht, Evgenii Kh.; Lomaev, Mikhail I.; Shao, Tao
• Is Part Of: High voltage. Volume 2:Issue 2(2017)
• Page Start: 49
• Page End: 55
• Publication Date: 2017-05-31
• Subjects: SF6 insulation -- avalanche breakdown -- nitrogen; electrode spacing -- gas pressure -- runaway electron beam -- nanosecond breakdown -- supershort avalanche electron beam -- SAEB -- GIN‐55‐01 -- VPG‐30‐200 -- SLEP‐150M pulsers -- SAEB current pulse amplitude -- anode foil -- tubular cathodes; High voltages -- Periodicals; 621.3191
• DOI: 10.1049/hve.2017.0014
• Languages: English
• ISSNs: 2397-7264

Abstract

Abstract : This study deals with experimental and theoretical simulation data showing the influence of electrode spacing and gas pressure on parameters of a supershort avalanche electron beam (SAEB) formed in SF6 and nitrogen at different rise times and amplitudes of a voltage pulse. Using GIN‐55‐01, VPG‐30‐200, and SLEP‐150M pulsers, tubular cathodes with a diameter of 6 mm, as well as gaps of 3, 5, and 8 mm, it was shown that the SAEB current amplitude can both increase and decrease depending on an electrode spacing, a waveform and a rise time of the voltage pulse, as well as the pressure of SF6 and nitrogen. It was established as a result of simulation that maximal voltage across the gap during the process of generation of runaway electrons and the thickness of an anode foil have a major effect on the SAEB current pulse amplitude.