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Wang, Y., Zheng, Y., Huang, H. and Lin, Z. (2026) Breakdown Voltage Estimation of Hybrid Nitrogen-Barrier Insulation Gap Considering Surface Charge Effect at Different Pressures. IEEE Transactions on Dielectrics and Electrical Insulation, 33, 3457-3465.
https://doi.org/10.1109/tdei.2026.3650886

has been cited by the following article:

• TITLE: Theoretical Assessment of Breakdown Voltage in a Hybrid Insulation System Using Nitrogen/Oxygen Gas Mixture with 10% Oxygen

  AUTHORS: Nathanaël Victoire Mouélé Nguélé, Jean Paul Yembi, Elysée Obame Ndong, Adoum Traoré Ndama

  KEYWORDS: Breakdown Voltage, Dielectric Coatings, Eco-Friendly Electrical Insulation Gas, Hybrid Insulation Systems, Solid Dielectric Barrier

  JOURNAL NAME: Energy and Power Engineering, Vol.18 No.10, October 28, 2026

  ABSTRACT: SF6 is widely used in the insulation of high-voltage systems such as circuit breakers and switching devices, due to its exceptional insulating properties. However, this gas is recognized as one of the main greenhouse gases. To limit the use of this gas, a hybrid solution consisting of the nitrogen/oxygen (N2/O2) gas mixture with 10% oxygen (O2) and solid dielectrics used as electrode coatings and a barrier between parts with a difference in electric potential is considered. The theoretical assessment of breakdown voltage in hybrid insulation system, based on streamer inception and propagation criteria, is carried out using COMSOL Multiphysics and MATLAB software. The results showed that the combination of solid dielectric coating and barrier leads to a substantial increase of the relative flashover voltage above 33% for all the gap distance evaluated.