Influence of Electrode Surface Evolution on the Properties of High-current Vacuum Arcs in Switching Applications

Authors

  • S. Gortschakow Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany
  • D. Gonzalez Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany
  • R. Methling Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany
  • D. Uhrlandt Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany
  • A. Lawall Siemens AG, Rohrdamm 88, 13629 Berlin, Germany
  • E. D. Taylor Siemens AG, Rohrdamm 88, 13629 Berlin, Germany
  • F. Graskowski Siemens AG, Rohrdamm 88, 13629 Berlin, Germany

DOI:

https://doi.org/10.14311/ppt.2023.1.5

Keywords:

vacuum arc, optical diagnostics, switching arcs

Abstract

Properties of high-current vacuum arcs in dependence on electrode surface status have been studied. The AC current pulses with 16kA (rms) at 50Hz have been applied to spiral contact system made of conventional CuCr material. Each contact pair was loaded with 20 shots. Arc diagnostics comprises arc current and voltage measurements as well as various optical diagnostics. Two high-speed cameras were used for analysis of arc dynamics. Near infrared radiation spectroscopy was applied for determination of the anode surface temperature after the arc extinguishing. The results show clear changes in arc dynamics and anode surface temperature with progressing surface ageing.

References

R. Methling, S. Gorchakov, M. Lisnyak, et al. Spectroscopic investigation of high-current vacuum arcs. Proc. 26th Int. Symp. Discharges Elect. Insul. Vac., Mumbai, India, page 221–224, 2014.

A. Khakpour, S. Franke, R. Methling, et al. An improved arc model for vacuum arc regarding anode spot modes. IEEE Trans. Dielectrics Electr. Insulation, 26:120–128, 2019. doi:10.1109/TDEI.2018.007587.

H. Janssen, V. Hinrichsen, E. D. Taylor, and T. Rettenmaier. Comparison of arc motion in different lifetime sealed vacuum interrupters with rmf contacts. IEEE Trans. Plasma Sci., 47:3525–3532, 2019. doi:10.1109/TPS.2019.2917295.

S. Gortschakow, A. Batrakov, D. Gonzalez, et al. Optical diagnostics of vacuum arc discharges for switching applications. 7th International Congress on Energy Fluxes and Radiation Effects (EFRE), pages 6–13, 2020. doi:10.1109/EFRE47760.2020.9242049.

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Published

2023-08-08

Issue

Vol. 10 No. 1 (2023)

Section

Articles

License

Copyright (c) 2023 S. Gortschakow, D. Gonzalez, R. Methling, D. Uhrlandt, A. Lawall, E. D. Taylor, F. Graskowski

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