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Constellation of Condensation and Raindrops and Its Effect on the DC Flashover Voltage of Inclined Silicone Insulation

Author

Listed:
  • Rabah Boudissa

    (Laboratory of Electrical Engineering, Department of Electrical Engineering, University A. Mira of Bejaia, Bejaia 06000, Algeria)

  • Fatma Bouchelga

    (Laboratory of Electrical Engineering, Department of Electrical Engineering, University A. Mira of Bejaia, Bejaia 06000, Algeria)

  • Stefan Kornhuber

    (Faculty of Electrical Engineering and Computer Science, University of Applied Sciences, Theodor-Koerner-Allee 16, 8800 Zittau, Germany)

  • Klaus Dieter Haim

    (Faculty of Electrical Engineering and Computer Science, University of Applied Sciences, Theodor-Koerner-Allee 16, 8800 Zittau, Germany)

Abstract

The purpose of this paper is to characterize the arrangement of raindrops and natural condensation and its effect on the direct current voltage’s flashover of a hydrophobic silicone insulating surface under variable inclination. Two devices have been realized, one for on-site exposure of insulation samples under rain and condensation, and the other for laboratory use in order to allow the variation of the angle of their inclination. The temporal evolution of the constellation of raindrops and natural condensation as well as the electrical discharge produced in the laboratory was visualized. The results emanated from the on-site investigation allowed the identification of the most reproducible type of arrangement of rainwater and natural condensation drops as well as the estimation of their respective volume. The results from the laboratory clearly show the existence of an interval of the insulation’s inclination angle, which allows the best approximation of its electrical performance to what was obtained in the absence of these drops. Moreover, these same results also inform us about some very critical situations to avoid regarding the insulation by a judicious choice of its inclination angle.

Suggested Citation

  • Rabah Boudissa & Fatma Bouchelga & Stefan Kornhuber & Klaus Dieter Haim, 2019. "Constellation of Condensation and Raindrops and Its Effect on the DC Flashover Voltage of Inclined Silicone Insulation," Energies, MDPI, vol. 12(18), pages 1-17, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:18:p:3549-:d:267802
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    References listed on IDEAS

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    1. Arshad & Azam Nekahi & Scott G. McMeekin & Masoud Farzaneh, 2016. "Flashover Characteristics of Silicone Rubber Sheets under Various Environmental Conditions," Energies, MDPI, vol. 9(9), pages 1-19, August.
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