Author: I.L. Shleyfman., ph.d., JSC “R & D FGC UES ”
Keywords: low temperature; gas pressure; gas mixture; nitrogen; freon; heating devices; test methods.
Abstract: SF6 circuit-breakers are the main type of circuit-breakers for the electrical networks with voltage level of 110 kV and above. Their extensive use is determined by high dielectric and arc extinguishing properties of SF6 gas as circuit-breaker filling medium.