Particle Trajectory in Single Phase SF6/N2 Bus Duct for Power Frequency Voltage

Abstract

Diluted SF₆/N₂ mixtures could be a substitute to pure SF₆ as insulating medium for high voltage gas insulated systems. They promise to have a lower environmental impact than a system insulated with pure SF₆ for the same rating. In this paper particle trajectories are obtained in single phase bus duct for power frequency voltage with SF₆/N₂ gas mixture as insulating medium in GIB. Aluminium, copper and silver particles are considered as conducting particle. During the study, the various combinations of SF₆ and N₂ gas concentration in mixture are tried for copper, aluminium and silver particle contaminations. The results are found in good agreement with published work of pure SF₆ environment