Abstract
The interruption of high alternative currents in high-voltage SF6 circuit breakers leads in general to rather strong erosion of the contacts and of the nozzle surrounding the electric arc. The plasma created by the arc is thus established in a mixture composed of the filling gas, the copper vapor, the vapor of the nozzle material and several impurities such as water and oxygen coming from wall desorption. In modern circuit breakers, the nozzle ablation erosion is enhanced in order to increase the pressure in the upstream part of the apparatus, which leads to a strong blowing of the arc at current zero without using an energetic piston effect.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
T. Sakuta and T. Takashima Multi-mixing effects of nozzle and electrode materials on transport and thermodynamic properties of SF6 under current interruption conditions, X th Int. Conf. Gas Disch. Appl., Swansea, edited by W.T. Williams, 1,110–114 (1992)
B. Chervy, A. Gleizes and M. Razafinimanana Thermodynamic properties and transport coefficients in SF6-Cu mixtures, J. Phys. D: Appl Phys. 27,1193–1206 (1994)
B. Chervy, H. Riad and A. Gleizes, Calculation of the interruption capability of SF6-CF4 and SF6-C2F6 mixtures, IEEE Trans. Plasma Sc. 24,198–209 (1996)
J.J. Lowke, R.E. Voshall and H.C. Ludwig, Decay of electrical conductance and temperature of arc plasma, J. Appl. Phys. 44,3153(1973)
K.P. Brand and J. Kopainsky, Appl. Phys. 16,425–432 (1978)
I. Coll, A.M. Casanovas, L. Vial, A. Gleizes and J. Casanovas, Chemical kinetics modelling of a decaying arc plasma in the presence of a solid organic insulator, copper, oxygen and water, J. Phys. D Appl. Phys. 33,221–229 (2000)
J.B. Belhaouari, J.J. Gonzalez and A. Gleizes, Simulation of a decaying SF6 arc plasma: hydrodynamic and kinetic coupling study, J. Phys. D Appl. Phys. 31,1219–1232 (1998)
1. Sauers, S.M. Mahajan and R.A. Cacheiro Gaseous Dielectrics,edited by L. Christophorou, pp. 423–431 (1994)
A.M. Casanovas, I. Coll, C. Pradayrol and J. Casanovas, Influence of a solid insulator on the spark decomposition of SF6 and 50% SF6+50%CF4 mixtures, J. Phys. D Appl. Phys 31, 2835–2845 (1998)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer Science+Business Media New York
About this chapter
Cite this chapter
Gleizes, A., Casanovas, AM., Coll, I. (2001). Ablation in SF6 Circuit-Breaker Arcs: Plasma Properties and By-Products Formation. In: Christophorou, L.G., Olthoff, J.K. (eds) Gaseous Dielectrics IX. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-0583-9_55
Download citation
DOI: https://doi.org/10.1007/978-1-4615-0583-9_55
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-5143-6
Online ISBN: 978-1-4615-0583-9
eBook Packages: Springer Book Archive