Abstract
It is now known that SF6/CF4 mixtures (50–50) make a suitable candidate to supplant pure SF6 in high voltage circuit breakers for low temperature environment applications. When a circuit breaker is operating, the arc plasma decays in the presence of metal, carbon, oxygen and water coming from partial vaporisation and desorption of the electrodes and nozzle (composed of an organic insulator) under the stress. So, in an effort to approach conditions occurring in practice and as a continuation of previous investigations1,2 in our laboratory, we studied the spark decomposition of SF6 and SF6+50%CF4 mixtures in the presence of a solid insulator struck by the electric arc.
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References
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Coll, I., Casanovas, AM., Pradayrol, C., Casanovas, J. (1998). Influence of a Solid Insulator on the Spark Decomposition of SF6 and SF6+50%CF4 Mixtures. In: Christophorou, L.G., Olthoff, J.K. (eds) Gaseous Dielectrics VIII. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4899-7_52
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DOI: https://doi.org/10.1007/978-1-4615-4899-7_52
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