DC Arc Extinction Using External Magnetic Field in Switching Device

  • Cho Hyun-Kil (Magnetic Switch Design Team of LS Industrial System Co., Ltd.) ;
  • Lee Eun-Woong (Dept. of Electrical and Electronic Engineering, Chungnam National University) ;
  • Jeong Jong-Ho (Dept. of Electrical and Electronic Engineering, Chungnam National University)
  • Published : 2005.12.01

Abstract

In this paper, the electromagnetic force acting in the arc column of 3 different extinction units is compared with using the FEM (Finite Element Method) and the arc velocity is calculated by the drag force of the fluid mechanics. The experiment for breaking the arc current was performed in each model at 100 volts in order to measure the arcing time. The outcome was compared with the computing value. As a result, this paper proposes that the divided U-shaped grid is able to shorten arcing time and improve the electric performance. It also suggests a methodology for comparing and analyzing the result obtained by simulation and experiment.

References

  1. Ragnar Holm, Electric contacts, 4th edition, pp. 275-366, springer-verlag, New York, 1967
  2. T. Mori et al., 'New interruption method for lowvoltage, small-capacity, air-break contactors,' Holm Conference, pp. 2308-2313,1989 https://doi.org/10.1109/IAS.1989.96964
  3. Teijiro Mori and Kenichi Koyama, 'A new interruption method for low-voltage small-capacity, air-break contactor,' IEEE Industry Application, Vol. 27. No.1, pp. 161-165,1991 https://doi.org/10.1109/28.67548
  4. Z. Kolacinsk, et al., 'Spiral arc quenching,' IEEE Trans. Power Delivery, Vol. 7, No.2, pp. 822-828, 1992 https://doi.org/10.1109/61.127086
  5. John. Shea and Yun-ko Chien, 'Blow-open forces on double-break contacts,' IEEE Holm Conference, pp. 103-109,1993 https://doi.org/10.1109/HOLM.1993.489666
  6. Shokichiro Ito and Yoshiaki Takato, 'Numerical analysis of electromagnetic forces in low voltage circuit breakers using 3-D finite element method into account eddy currents,' IEEE Transaction on Magnetics, Vol. 34, No.5, pp. 2597-2600, 1998 https://doi.org/10.1109/20.717600
  7. K. Pechrach et al, 'The correlation of magnetic, gas dynamic and thermal effects on ac mobility in low contact velocity circuit breakers,' IEEE Holm Conference, pp. 86-94, 2002 https://doi.org/10.1109/HOLM.2002.1040827
  8. V. Samoilov et al, 'Physical processes at opening contacts,' IEEE Holm Conference, pp. 111-120, 1999 https://doi.org/10.1109/HOLM.1999.795935
  9. Du Taihang et al, 'The research on electrical life test condition of relay with electromotor load,' IEEE Holm Conference, pp. 56-60, 2002 https://doi.org/10.1109/HOLM.2002.1040822
  10. Wu xixiy and Li Zhenbiao, 'Model on sputter erosion of electrical contact material,' IEEE Holm Conference, pp. 29-34, 2002 https://doi.org/10.1109/HOLM.2002.1040819
  11. K. Horinouch et aI., 'A method of simulating magnetically driven arcs', IEEE Trans. Power Delivery, Vol. 12, No.1, pp. 213-218, 1997 https://doi.org/10.1109/61.568243
  12. Mesut and Nikhil R Mahajan, 'DC distribution for industrial systems: Opportunities and challenges,' IEEE/PES, Vol. 1. pp. 38-74, 2002
  13. Robert Haug, et aI., 'Phenomena preceding arc ignition between opening contacts: Experimental study and theoretical approach,' IEEE trans. On components, Hybrids, and manufacturing Tech., Vol. 14, No.1, pp. 14-19, March, 1991 https://doi.org/10.1109/33.76503