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Experimental Investigation of the Breakdown Voltage of CO 2 , N 2, and SF 6 Gases, and CO 2 –SF 6 and N 2 –SF 6 Mixtures under Different Voltage Waveforms

Author

Listed:
  • Abderrahmane Beroual

    (Ecole Centrale de Lyon, University of Lyon, Ampere CNRS UMR 5005, 36 Avenue Guy Collongue, 69134 Ecully, France)

  • Usama Khaled

    (Department of Electrical Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
    Electrical Engineering Department, Faculty of Energy Engineering, Aswan University, Aswan 81528, Egypt)

  • Mamadou-Lamine Coulibaly

    (Ecole Centrale de Lyon, University of Lyon, Ampere CNRS UMR 5005, 36 Avenue Guy Collongue, 69134 Ecully, France)

Abstract

This paper is devoted to a comparison study of the breakdown voltage of CO 2 , N 2 , and SF 6 gases, and CO 2 –SF 6 and N 2 –SF 6 mixtures under different voltage waveforms, namely AC, DC, and lightning impulse voltages, in point–plane and sphere–sphere electrode arrangements. The influence of pressure, voltage polarity, and percentage of SF 6 in CO 2 and N 2 were studied, and equivalencies between the breakdown voltage of SF 6 and those of the considered mixtures were analyzed. It is shown that the breakdown voltage of SF 6 is the highest, whatever the applied voltage waveforms. Similarly, for a given voltage waveform, the breakdown voltage of SF 6 is the highest. The AC breakdown voltage is the lowest for all gases. The addition of small amounts of SF 6 to CO 2 and N 2 significantly improved the breakdown voltages of both natural gases. For a given breakdown voltage, the ratio between the pressure of CO 2 to that of SF 6 was generally lower than the pressure of N 2 to SF 6 , whatever the voltage waveforms.

Suggested Citation

  • Abderrahmane Beroual & Usama Khaled & Mamadou-Lamine Coulibaly, 2018. "Experimental Investigation of the Breakdown Voltage of CO 2 , N 2, and SF 6 Gases, and CO 2 –SF 6 and N 2 –SF 6 Mixtures under Different Voltage Waveforms," Energies, MDPI, vol. 11(4), pages 1-12, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:902-:d:140685
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