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Article Dans Une Revue Energies Année : 2022

Influence of Temperature on Lightning Performance of Mineral Oil

Résumé

This article deals with the influence of temperature on the lightning impulse breakdown voltage (LI BDV) of mineral oil in a non-uniform electric field. The experiments were performed in point–plane electrode arrangements under a standard lightning impulse voltage of negative polarity. The LI BDV for the temperatures of 20, 40, 60, 80, 100 and 110 °C was measured using a step method with registration of the light signals emitted during pre-breakdown and breakdown phases. The average propagation velocity was also determined. The results confirm that the mineral oil tested under LI voltage behaves similarly to AC voltage-based stress. The LI BDV increases with temperature up to 100 °C and then tends to decrease. The results demonstrated that viscosity dependent processes are responsible for increasing the LI BDV with temperature up to the 100 °C; and liquid vapor formation processes are responsible for decreasing the LI BDV at temperatures equal to and higher than 100 °C.
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Dates et versions

hal-04047534 , version 1 (27-03-2023)

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Pawel Rozga, Filip Stuchala, Tomasz Piotrowski, Abderrahmane Beroual. Influence of Temperature on Lightning Performance of Mineral Oil. Energies, 2022, 15 (3), pp.1063. ⟨10.3390/en15031063⟩. ⟨hal-04047534⟩
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