Experimental studies of microarcs between copper electrodes in air

Authors

  • J. K. C. Ballentin Institute for Electrical Engineering, University of Rostock, Germany
  • M. Baeva Leibnitz Institute for Plasma Science and Technology, Greifswald, Germany
  • D. Uhrlandt Leibnitz Institute for Plasma Science and Technology, Greifswald, Germany

DOI:

https://doi.org/10.14311/ppt.2025.2.95

Keywords:

microarc, low-voltage circuit-breaker, copper electrodes, plasma spectroscopy

Abstract

Low direct current arcs generated between Cu electrodes in atmospheric pressure air are investigated in relation to low-voltage switching. Electrical and optical measurements and high-speed imaging give insight into the dynamics of the arc. Side-on spectroscopy with a grating spectrometer and suitable optical imaging delivers spatially resolved spectral emission coefficients of three emission lines of the Cu atom. The experimental findings are compared with results from modelling.

References

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M. Baeva, J. K. C. Ballentin, and D. Uhrlandt. Modelling studies of arcs of short length between copper electrodes (submitted). Plasma Phys. Technol., 12(1):40, 2025. doi:10.14311/ppt.2025.1.40.

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Published

2025-09-10

Issue

Vol. 12 No. 2 (2025)

Section

Articles

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Copyright (c) 2025 J. K. C. Ballentin, M. Baeva, D. Uhrlandt

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