Breakdown electric field calculations of hot SF/sub 6/ for high voltage circuit breaker applications

Autor: Ph. Robin-Jouan, Z. Kanzari, Mohammed Yousfi
Rok vydání: 2005
Předmět:
Zdroj: IEEE Transactions on Dielectrics and Electrical Insulation. :1192-1200
ISSN: 1070-9878
Popis: The critical reduced electric field strengths of hot SF/sub 6/ corresponding to the dielectric recovery phase of a high voltage circuit breaker are calculated for a large temperature range (300-3000 K). Calculations are based on a multi-term Boltzmann equation solution using, in comparison to the literature works, improved cross section sets for the interactions of electrons with various SF/sub 6/ dissociated products. The obtained critical electric fields show a reasonable agreement with the available data. These results are then used in hydrodynamics simulations which correctly predicts the circuit breaker behaviors observed in the case of a successful breaking test as well as in a failed one.
Databáze: OpenAIRE