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Impact of Electrode Distance in a Quasi-Uniform Model Electrode System on Lightning Impulse Breakdown Voltage in Various Insulating Liquids

Author

Listed:
  • Wiktor Kunikowski

    (Institute of Electrical Power Engineering, Lodz University of Technology, 90-537 Lodz, Poland)

  • Pawel Rozga

    (Institute of Electrical Power Engineering, Lodz University of Technology, 90-537 Lodz, Poland)

  • Bartlomiej Pasternak

    (Institute of Electrical Power Engineering, Lodz University of Technology, 90-537 Lodz, Poland)

  • Jakub Staniewski

    (Institute of Electrical Engineering Systems, Lodz University of Technology, 90-537 Lodz, Poland)

  • Filip Stuchala

    (Institute of Electrical Power Engineering, Lodz University of Technology, 90-537 Lodz, Poland)

  • Konrad Strzelecki

    (Institute of Electrical Power Engineering, Lodz University of Technology, 90-537 Lodz, Poland)

Abstract

This study presents findings on the influence of gap length distance on the lightning impulse breakdown voltage of three dielectric liquids of different chemical origins. The liquids were tested in a model electrode system with a quasi-uniform electric field distribution and a pressboard plate placed on the grounded electrode. The experimental studies were supported using calculations and simulations to show the individual relationships between the lightning impulse breakdown voltage and gap distance, which represent the so-called volume effect of the most stressed liquid. The results of the experiment, which involved four considered gap distances of 2, 4, 6, and 8 mm, show that a dynamic increase in lightning impulse breakdown voltage with an increase in gap distance is associated with mineral oil and bio-based hydrocarbons. However, similar trends were not observed for synthetic ester. Calculations that allowed us to assess the impact of gap length distance on lightning impulse breakdown voltage support the observations from the experimental studies. The curves obtained in this field can be considered in the process of designing insulating systems for transformers.

Suggested Citation

  • Wiktor Kunikowski & Pawel Rozga & Bartlomiej Pasternak & Jakub Staniewski & Filip Stuchala & Konrad Strzelecki, 2024. "Impact of Electrode Distance in a Quasi-Uniform Model Electrode System on Lightning Impulse Breakdown Voltage in Various Insulating Liquids," Energies, MDPI, vol. 17(4), pages 1-18, February.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:4:p:782-:d:1334520
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    References listed on IDEAS

    as
    1. L. Loiselle & U. Mohan Rao & I. Fofana, 2020. "Influence of Aging on Oil Degradation and Gassing Tendency for Mineral oil and Synthetic Ester under Low Energy Discharge Electrical Faults," Energies, MDPI, vol. 13(3), pages 1-12, January.
    2. J. Sanz & C. J. Renedo & A. Ortiz & P. J. Quintanilla & F. Ortiz & D. F. García, 2023. "A Brief Review of the Impregnation Process with Dielectric Fluids of Cellulosic Materials Used in Electric Power Transformers," Energies, MDPI, vol. 16(9), pages 1-24, April.
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