Net Emission Coefficients in SF6 Arc Plasmas With Cu Admixture

Net Emission Coefficients in SF6 Arc Plasmas With Cu Admixture

Paper in proceedings (conference paper)

Recently, we have used an approximate method of partial characteristics to evaluate the radiation properties of pure SF6 arc plasmas. Our data of radiative heat transfer have been widely used for modeling of a switching process in high power circuit breakers with SF6 gas as an insulation and quenching medium. In this paper, we extended the data for Cu vapor contribution. We present net emission coefficients which take into account vaporization from Cu contacts. We treated various mixtures of SF6 and Cu with 1%, 5% and 10% of Cu admixture, respectively. It follows from the results that Cu vapor contributes to the higher radiation emission.

Recently, we have used an approximate method of partial characteristics to evaluate the radiation properties of pure SF6 arc plasmas. Our data of radiative heat transfer have been widely used for modeling of a switching process in high power circuit breakers with SF6 gas as an insulation and quenching medium. In this paper, we extended the data for Cu vapor contribution. We present net emission coefficients which take into account vaporization from Cu contacts. We treated various mixtures of SF6 and Cu with 1%, 5% and 10% of Cu admixture, respectively. It follows from the results that Cu vapor contributes to the higher radiation emission.

Plasma radiation, SF6 arc, method of partial characteristics

AUBRECHT, V., BARTLOVÁ, M., DOHNAL, P.

2011

15.09.2003

Institute of Molecular and Atomic Physics

Minsk, Belarus

5-85389-039-5

Proceedings of IV International Conference "Plasma Physics and Plasma Technology"

277

280

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