Experimental validation of MHD arc simulation in encapsulated horn gap arrangements

Authors

  • A. Ehrhardt DEHN SE, Hans-Dehn-Straße 1, 92318 Neumarkt, Germany
  • S. Schmaußer DEHN SE, Hans-Dehn-Straße 1, 92318 Neumarkt, Germany
  • O. Schneider DEHN SE, Hans-Dehn-Straße 1, 92318 Neumarkt, Germany
  • Diego Gonzalez Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany

DOI:

https://doi.org/10.14311/ppt.2025.1.22

Keywords:

arc simulation, spark gap, impulse current, follow current

Abstract

This work describes the use of experimental methods on model spark gaps for comparison with the simulation models (MHD) from the ignition of the impulse arc to the entry of the arc into the arc chamber, taking into account material effects and thermal reignitions of the arc, e.g. as a result of the gas flow within the encapsulated spark gap. Examples are provided to show that the simulation can accurately represent the experimental processes and improve the understanding of the complex processes.

References

A. Ehrhardt and P. Zahlmann. Measurements of pressure and functional characteristics of a surge arrester at lightning impulses and mains follow currents. In XVIth Symposium on Physics of Switching Arc, Brno, Czech Republic, 2005.

A. Ehrhardt, S. Schreiter, U. Strangfeld, and M. Rock. Encapsulated lightning current arrester with spark gap and deion chamber. In XIXth Symposium on Physics of Switching Arc, Brno, Czech Republic, 2011.

O. Schneider, A. Ehrhardt, B. Leibig, et al. Surge protection device digital prototyping. In Proceedings of the 30th International Conference on Electrical Contacts, pages 486–493, Switzerland, 2020.

A. Aksenov, A. Dyadkin, and V. Pkhilko. Overcoming of barrier between cad and cfd by modified finite volume method. In Proc. 1998 ASME Pressure Vessels and Piping Division Conference, pages 79–86, San Diego, USA, 1998.

O. Schneider, D. Gonzalez, and A. Ehrhardt. Multiphysical simulation of impulse current arcs in spark gaps for industrial applications. Plasma Physics and Technology, 10(3):119–122, 2023. doi:10.14311/ppt.2023.3.119.

R. Fuchs. Numerical arc simulations of radiatively-induced PMMA nozzle wall ablation. In 30th International Conference on Electrical Contacts, Switzerland, 2021.

M. Anheuser, T. Beckert, and S. Kosse. Electric arcs in switchgear - theory, numerical simulation and experiments. In XIXth Symposium on Physics of Switching Arc, Brno, Czech Republic, 2011.

M. Baeva, R. Methling, D. Gonzalez, et al. Complementary experimental and simulation-based characterization of transient arcs. Plasma Physics and Technology, 10:56–59, 2023. doi:10.14311/ppt.2023.2.56.

Y. Nakano, Y. Tanaka, and T. Ishijima. Consistent calculation from particle composition to arc simulation for arc ignition process in polymer ablated arcs. Plasma Chemistry and Plasma Processing, 44(1):1–24, 2023. doi:10.1007/s11090-023-10360-9.

Downloads

Published

2025-08-26

Issue

Section

Articles