Thursday 10
A. Arcs
Chair: P. Robin-Jouan, A. Gleizes - Each talk is 10'+2' duration
› 10:15 - 10:25 (10min)
› Cabannes
Radiative properties in High Voltage Circuit Breakers Arc Plasma: Validity of mixture laws for SF6/C2F4 mixtures and impact of copper on Net Emission Coefficients.
Loïc Hermette  2, 1@  , Yann Cressault  3@  , Alain Gleizes  4, 5@  , C. Jan  2, 5  , K. Bousoltane  2  
2 : SIEMENS Transmission & Distribution  (SIEMENS T&D)  -  Website
Siemens
1 rue de la Neva, BP 178 38004 Grenoble -  France
1 : Laboratoire Plasma et Conversion d'Energie  (LAPLACE)  -  Website
CNRS : UMR5213, Université Paul Sabatier [UPS] - Toulouse III, Institut National Polytechnique de Toulouse, Université Paul Sabatier (UPS) - Toulouse III
118 Route de Narbonne 31062 TOULOUSE CEDEX 9 -  France
3 : Université de Toulouse, UPS, INPT, Laboratoire Plasma et Conversion d'Energie  (Université de Toulouse, UPS, INPT, LAPLACE)
Université de Toulouse, UPS, INPT
118 route de Narbonne, F-31062 Toulouse Cedex 9 -  France
4 : CNRS, LAPLACE
CNRS : UMR5213
F-31062 Toulouse -  France
5 : Laboratoire Plasma et Conversion d'Energie [Toulouse]  (LAPLACE)  -  Website
Université Paul Sabatier (UPS) - Toulouse III, CNRS : UMR5213, Institut National Polytechnique de Toulouse
118 Route de Narbonne 31062 TOULOUSE CEDEX 9 -  France

In this paper, we tried to estimate the radiative properties of SF6-C2F4-Cu thermal plasmas existing in High Voltage Circuit Breakers (HVBV). The calculation was realized assuming the Local Thermodynamic Equilibrium (LTE), binary and ternary mixtures with mass concentrations, temperatures from 300K to 30 000K and pressures of 1 bar and 8 bar. Two methods were used to estimate these properties: the Net Emission Coefficient (NEC) by neglecting the lines overlapping and the mixing rules using either the NECs of the pure gases or the NECs of a given SF6-C2F4 mixture and of pure Cu plasma. Some results are proposed and discussed. The tone of the conclusion is that the linear interpolation seems to be a good approximation for low pressure and high temperatures.


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