3D CFD Arc Fault Simulation in Gas-Insulated Switchgears

Authors

  • F. Reichert Siemens AG, Germany
  • A. Petchanka Siemens AG, Germany

DOI:

https://doi.org/10.14311/ppt.2019.1.35

Keywords:

gas-insulated switchgear, internal arc, CFD arc fault simulation, modelling, validation

Abstract

Arc fault processes can lead to strong damages in gas-insulated switchgears and have to be considered in the development process. In order to reduce test costs, the development of overpressure protection systems can be supported by CFD arc fault simulations. The paper deals with the modelling and simulation of arc fault processes in gas--insulated switchgears. The developed simulation tool takes into account a three-dimensional arc model and the opening of a rupture disc during the arc fault process. The influence of different insulating media as e.g. SF6, Air and CO2 on the arc fault process has been investigated. The simulation model has been validated by measured signals for pressure build-up and arc voltage.

References

High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV. IEC 62271-203, 2011.

N. Uzelac et al. Tools for the simulation of the effects of the internal arc in transmission and distribution switchgear. Cigre, Technical Brochures, 602, WG A3.24, 2014.

X. Zhang. Modellierung der Auswirkungen von Störlichtbögen in elektrischen Anlagen. Postdoctoral thesis. RWTH Aachen, 2002.

S. Wetzeler et al. Influence of insulating gas on pressure rise in electrical installations due to internal arcs. 20th International Conference on Gas discharges and their Applications, pages 442–445, 2014.

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Published

2019-07-31

Issue

Vol. 6 No. 1 (2019)

Section

Articles

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