High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) An International Journal

ISSN for PRINT: 1093-3611

For Online Access

Best Paper Award Selection - Editorial Board Site

2005, Volume9

Issue 4

174 pages

DOI: 10.1615/HighTempMatProc.v9.i4

Issue price - $144.00

M. Yousfi
Universitó Paul Sabatier, CPAT-UMR 5002 CNRS, 118 Route De Narbonne, 31062 Toulouse Cedex 9, France

Ph. Robin-Jouan
Centre de Recherche de la Transmission d'Energie AREVA T&D, 130 rue Leon Blum 69611 Villeurbanne Cedex, France

Z. Kanzari
Universitó Paul Sabatier, CPAT-UMR 5002 CNRS, 118 Route De Narbonne, 31062 Toulouse Cedex 9, France

This paper is devoted to the breakdown electric field strength calculations of hot SF₆ under the conditions of the usual dielectric recovery phase in a high voltage circuit breaker. This means that calculations are undertaken for a large temperature range (300 K up to 3000 K) and different gas pressures (1 up to 7 atmospheres). Calculations are based on a rigorous multi-term Boltzmann equation solution using improved cross section sets for the interactions between the electrons and the various SF₆ dissociation products. The present breakdown electric fields show an interesting agreement with the sparse literature results. Then our results are used as input data in hydrodynamics simulation codes. This allows thus to correctly predicting the circuit breaker behaviours observed in the case of a successful breaking test and a failure one.

DOI: 10.1615/HighTempMatProc.v9.i4.70 Download article, 573-582 pages

Article price - $35.00

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