A brief history of gaseous dielectrics research at NIST

Abstract

Researchers at the National Institute of Standards and Technology (NIST) have investigated gaseous dielectrics for more than 20 years. Significant technical accomplishments in this area include a detailed understanding of the physics and chemistry of corona-induced decomposition of SF6, the determination of important collisional cross sections for dielectric gases, the development of conditional detection techniques for partial discharges, and assessment of potential replacement gases for SF6. These and other research areas will be highlighted in this brief history of gaseous dielectrics research at NIST.

Optimization of the separation of sulfur hexafluoride and nitrogen by selective adsorption using monte carlo simulations

“…Hence, there have been numerous efforts to reduce emissions from facilities using SF 6 . 3,4 Besides, there are numerous research studies aimed at finding an alternative gas for insulation of electrical equipment, but a suitable substitute for SF 6 for some key applications is yet to be found. [5][6][7] One of the main options to diminish SF 6 emissions is mixing it with other gases to reduce the overall amount of SF 6 used, while keeping the desired properties of the pure fluid.…”