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Surface Discharges and Flashover Modelling of Solid Insulators in Gases

Author

Listed:
  • Mohammed El Amine Slama

    (Advanced High Voltage Engineering Centre, School of Engineering. Cardiff University, Queen’s Buildings The Parade, Cardiff, Wales CF24 3AA, UK)

  • Abderrahmane Beroual

    (Laboratoire Ampère, University of Lyon, 36 Avenue Guy de Collongues, 69130 Ecully, France)

  • Abderrahmane (Manu) Haddad

    (Advanced High Voltage Engineering Centre, School of Engineering. Cardiff University, Queen’s Buildings The Parade, Cardiff, Wales CF24 3AA, UK)

Abstract

The aim of this paper is the presentation of an analytical model of insulator flashover and its application for air at atmospheric pressure and pressurized SF 6 (Sulfur Hexafluoride). After a review of the main existing models in air and compressed gases, a relationship of flashover voltage based on an electrical equivalent circuit and the thermal properties of the discharge is developed. The model includes the discharge resistance, the insulator impedance and the gas interface impedance. The application of this model to a cylindrical resin-epoxy insulator in air medium and SF 6 gas with different pressures gives results close to the experimental measurements.

Suggested Citation

  • Mohammed El Amine Slama & Abderrahmane Beroual & Abderrahmane (Manu) Haddad, 2020. "Surface Discharges and Flashover Modelling of Solid Insulators in Gases," Energies, MDPI, vol. 13(3), pages 1-14, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:591-:d:313865
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    Citations

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    Cited by:

    1. Houssem Eddine Nechmi & Mohammed El Amine Slama & Abderrahmane (Manu) Haddad & Gordon Wilson, 2020. "AC Volume Breakdown and Surface Flashover of a 4% Novec TM 4710/96% CO 2 Gas Mixture Compared to CO 2 in Highly Nonhomogeneous Fields," Energies, MDPI, vol. 13(7), pages 1-22, April.
    2. Zhijin Zhang & Hang Zhang & Song Yue & Hao Wang, 2023. "Contamination Deposit and Model of Insulator," Energies, MDPI, vol. 16(6), pages 1-3, March.

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