Title :
Calculation of the interruption capability of SF6-CF4 and SF6-C2F6 mixtures. II. Arc decay modeling
Author :
Chervy, Benjamin ; Gonzalez, Jean-Jacques ; Gleizes, Alain
Author_Institution :
Univ. Paul Sabatier, Toulouse, France
fDate :
2/1/1996 12:00:00 AM
Abstract :
We evaluate, in this paper, the interruption capability of gas mixtures by simulating the decay of a nonblown wall-stabilized arc at atmospheric pressure. We have calculated, by a one-dimensional (1-D) transient model assuming local thermodynamic equilibrium and solving the mass and energy conservation equations, the variations of temperature and conductance. From our calculations, we can bring out that the most efficient gas for the interruption capability is the SF6, and that the mixtures SF6-CF4 and SF6-C2F6 are more efficient than SF6-N2 mixtures
Keywords :
SF6 insulation; circuit breakers; circuit-breaking arcs; gas mixtures; organic compounds; SF6-ethyl hexafluoride mixtures; SF6-hexafluoroethane mixtures; SF6-methyl tetrafluoride mixtures; SF6-tetrafluoromethane mixtures; arc decay modeling; atmospheric pressure; energy conservation equation; gas mixtures; interruption capability; local thermodynamic equilibrium; mass conservation equation; nonblown wall-stabilized arc; one-dimensional transient model; simulation; Atmospheric modeling; Circuit breakers; Cooling; Dielectrics; Energy conservation; Equations; Plasma applications; Plasma temperature; Thermal conductivity; Thermodynamics;
Journal_Title :
Plasma Science, IEEE Transactions on
