3D Analysis of Low-Voltage Gas-Filled DC Switch Using Simplified Arc Model

Authors

  • S. Gortschakow Leibniz institute for plasma science and technology
  • D. Gonzalez Leibniz Institute for Plasma Science and Technology
  • S. Yu TDK Electronics AG
  • F. Werner TDK Electronics AG

DOI:

https://doi.org/10.14311/ppt.2019.1.65

Keywords:

black-box model, Lorentz force, arc dynamics, 3D simulations

Abstract

Electro-magnetic simulations have been used for the visualization of distribution of Lorentz force acting on a DC switching arc in low-voltage contactor. A simplified plasma model (black-box model) was applied for the description of arc conductivity. Arc geometry was gained from the high-speed camera images. Influence of arc position, arc current and of external magnetic field has been studied. Results have been compared with optical observations of the arc dynamics.

References

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K. Sawa et al. Influence of sealed gas and its pressure on arc discharge in electromagnetic contactor. IEEE Holm Conference on Electrical Contacts, pages 236–241, 2017. doi:10.1109/HOLM.2017.8088093.

Breaking performance of a circuit breaker influenced by a permanent magnetic field at dc voltages up to 450 v. Proceedings of the ICEC-ICREPE, pages 236–241, 2012.

D. Volm and F. Winkler. Development of a compact relay for high voltage switching of up to 1000 v and 40 a. International Conference on Electrical Contacts, 27:144–148, 2014.

D. Gonzalez, S. Gortschakow, S. Yu, and F. Werner. Investigation of dc switching arc characteristics in hydrogen containing gas mixtures. Plasma Physics and Technology, 6(1):69-72, 2019. doi:10.14311/ppt.2019.1.69

J. Shea, E. Heckman, and J. Suarez Guevara. DC Arc Properties in a DC Magnetic Fields. 64th IEEE Holm Conference on Electrical Contacts/29th International Conference on Electrical Contacts, 64(1):195–202, 2017.

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Published

2019-07-31

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Section

Articles