Diagnostics of Various Phenomena in LV Devices Under Real Switching Conditions

Authors

  • J. Valenta Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 12, 616 00 Brno
  • M. Samohejl Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 12, 616 00 Brno
  • M. Fendrych Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 12, 616 00 Brno
  • P. Kloc Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 12, 616 00 Brno
  • L. Dostál Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 12, 616 00 Brno

DOI:

https://doi.org/10.14311/ppt.2017.3.257

Keywords:

electric arc, optical diagnostics, high speed video, arc root movement

Abstract

The article deals with issues to be tackled when performing experiments with low voltage devices under real switching conditions and subsequently discusses various phenomena in an experimental device. The first part describes optimum setting of diagnostic equipment - mainly for optical diagnostic methods. The second part describes some phenomena encountered during switching process under real switching conditions - arc roots movement (cathode and anode spots). These phenomena are not only important for experimental study itself but also form necessary input data for numerical models and their validation.

References

M. Lindmayer et al. Low-voltage switching arcs - experiments and modeling. In Proceedings of the XVth Symposium on Physics of Switching Arc, volume II, pages 252–267, 2003.

J. Quemeneur et al. Cathode arc root movement: Models comparison. Plasma Physics and Technology, 2(2):187–190, 2015.

M. Samohejl. Enhancement of optical diagnostics of the switching arc. Master’s thesis, Brno University of Technology, 2016.

J. Qu et al. Application of laser arc imaging technology to observe arc behavior and contact motion. Plasma Physics and Technology, 2(2):183–186, 2015.

M. Fendrych. Study of arc root movement in a model of the LV quenching system. Master’s thesis, Brno University of Technology, 2016.

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Published

2017-02-12

Issue

Vol. 4 No. 3 (2017)

Section

Articles

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