Suppression of Electron Avalanches in Ultra-Dilute SF6-N2 Mixtures Subjected to Time-Invariant Crossed Fields

Energies

MustafaSezai Dincer¹  Hidir Duzkaya²  SuleymanSungur Tezcan² 

[1] Department of Electrical and Electronic Engineering, Near East University, Nicosia 99138, Cyprus;Department of Electrical-Electronic Engineering, Gazi University, Ankara 06570, Turkey;

关键词: gaseous insulation;    ultra-dilute;    nitrogen;    sulfur hexafluoride;   

DOI  :  10.3390/en11123247

来源: DOAJ

【 摘 要 】

Ultra-dilute SF₆ + N₂ mixtures are subjected to crossed fields with the applied magnetic field normal to the electric field in order to investigate critical magnetic field values for suppression of electron avalanche growth resulting in increased dielectric strength. Electron avalanche growth inhibition together with the related electron mean energy variation and electron energy distribution functions are reported in the binary mixtures subjected to the combined fields. Even if a very small amount of greenhouse gas (SF₆) is used, high dielectric strength can be achieved in the binary mixtures with 0.25%, 0.50%, 0.75%, 3%, and 7% SF₆ contents subjected to the evaluated combined fields. The magnitude of the crossed magnetic field, which results in avalanche growth inhibition, decreases as the electronegativity of the mixture is increased.

【 授权许可】

Unknown