Experience of Pseudospark Switch Operation in Pulse Power Applications

12th International Conference on Gas Discharge Plasmas and Their Applications

Voitenko, N.V.^1 ; Yudin, A.S.^1 ; Kuznetsova, N.S.^1 ; Bochkov, V.D.^2

Tomsk Polytechnic University, 30 Lenina ave., Tomsk

634050, Russia^1

Pulsed Technologies Ltd., 5 Yablochkova str., Ryazan

390023, Russia^2

关键词: Asymmetric currents;    Charging voltage;    Circuit experiments;    Internal electrodes;    Operating voltage;    Pseudospark switches;    Pulse power applications;    Single-pulse mode;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/652/1/012059/pdf
DOI  :  10.1088/1742-6596/652/1/012059

来源: IOP

【 摘 要 】

The paper demonstrates the results of TDIl-200k/25SN-P pseudospark switch (PSS) developed by Russian company »Pulsed Technologies Ltd» application. PSS was used in pulsed power unit intended for electric-discharge fracture of rocks and concrete blocks and splitting off from monolith. The pulsed power unit has a pulse current generator with the capacity of 560 μF, stored energy of up to 63 kJ, operating voltage of up to15 kV, current pulse amplitude of up to 200 kA and pulse duration more than 200 μsec. The study also shows the current waveforms determined in the short-circuit experiment of the pulse current generator and in the experiments of the electric-discharge fragmentation of concrete at the charging voltage of 13 kV. PSS was operated in ringing single-pulse mode with the exceedance of more than two maximum permissible parameters: current pulse amplitude, current pulse duration and maximum pulse energy. Internal electrode erosion of PSS is shown and possible reasons of asymmetric current feed are discussed.