Analysis of Physics Processes in the AC Plasma Torch Discharge under High Pressure

14th High-Tech Plasma Processes Conference

Safronov, A.A.^1 ; Vasilieva, O.B.^1 ; Dudnik, J.D.^1 ; Kuznetsov, V.E.^1 ; Kuchina, J.A.^1 ; Shiryaev, V.N.^1 ; Pavlov, A.V.^1

Institute for Electrophysics and Electric Power of Russian Academy of Sciences (IEE RAS), Dvortsovaya emb. 18, St.-Petersburg

191186, Russia^1

关键词: Arc burning;    High pressure;    Physical process;    Three phase;    Voltage ripples;    Working gas;    Working parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/825/1/012014/pdf
DOI  :  10.1088/1742-6596/825/1/012014

来源: IOP

【 摘 要 】

The paper is devoted to investigation of electrophysical processes in the electric discharge generated by a three-phase AC plasma torch when using a high pressure inert working gas. AC plasma torch design with end electrodes intended for work on inert gases at pressures up to 81 bar is studied. Current-voltage characteristics for different gas flow rates and pressures are presented. Physical processes characteristics of the arising voltage ripples which depend on various working parameters of the plasma torch have been investigated. Arc burning processes in the electric discharge chamber of the three-phase AC plasma torch at various working parameters were photographed.