Analysis of Dielectric Breakdown of Hot SF6 Gas in a Gas Circuit Breaker

Title & Authors
Analysis of Dielectric Breakdown of Hot SF6 Gas in a Gas Circuit Breaker
Kim, Hong-Kyu; Chong, Jin-Kyo; Song, Ki-Dong;

Abstract
This paper presents the analysis of the dielectric characteristics of a hot $\small{SF_6}$ gas in a gas circuit breaker. Hot gas flow is analyzed using the FVFLIC method considering the moving boundary, material properties of real $\small{SF_6}$ gas, and arc plasma. In the arc model, the re-absorption of the emitted radiation is approximated with the boundary source layer where the re-absorbed radiation energy is input as an energy source term in the energy conservation equation. The breakdown criterion of a hot gas is predicted using the critical electric field as a function of temperature and pressure. To validate the simulation method, breakdown voltage for a 145kV 40kA circuit breaker was measured for various conditions. Consistent results between the simulation and experiment were confirmed.
Keywords
Gas circuit breaker;Hot $\small{SF_6}$ gas;Dielectric breakdown;Critical electric field;Arc plasma;
Language
English
Cited by
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Analysis of SLF Interruption Performance of Self-Blast Circuit Breaker by Means of CFD Calculation,;;;

Journal of Electrical Engineering and Technology, 2014. vol.9. 1, pp.254-258
1.
Analysis of SLF Interruption Performance of Self-Blast Circuit Breaker by Means of CFD Calculation, Journal of Electrical Engineering and Technology, 2014, 9, 1, 254
References
1.
Y. Hayashi, K. Suzuki, E. Haginomori, H. Toda and H. Ikeda, "On the hot gas exhaustion in the exhaust chamber of a gas circuit breaker after short-circuit current interruption," J. Phys. D, Appl. Phys., Vol. 30, pp. 3123-3130, 1997.

2.
T. Uchii, S. Nishiwaki and S. A. Boggs, "Effects of hot \$SF_6\$ on post-arc circuit breaker design," IEEE Trans. Power Delivery, Vol. 19, pp. 124-130, Jan. 2004.

3.
Y. Zhao and D. E. Winterbone, "The finite volume FLIC method and its stability analysis," Int. J. Mesh. Sci., Vol. 37, pp. 1147-60, 1995.

4.
G. J. Cliteur, Y. Hayashi, E. Haginomori and K. Suzuki, "Calculation of the uniform breakdown field strength of \$SF_6\$ gas," IEEE Trans. Dielect. Elect. Insulation, Vol. 5, pp. 843-849, 1998.

5.
M. Yousfi, Ph. Robin-Jouan, Z. Kanzari, "Breakdown Electric Field Calculations of Hot \$SF_6\$ for High Voltage Circuit Breaker Applications," IEEE Trans. on Dielect.Elect. Insulation, Vol. 12, No. 6, pp. 1192-1200, 2005.

6.
Ph. Robin-Jouan and M. Yousfi, "New Breakdown Electric Field Calculations for \$SF_6\$ High Voltage Circuit Breaker Applications," Proceedings of Gas Discharge and Their Applications – Xi'an, China, pp. 317-320, 2006.

7.
C. M. Dixon, J. D. Yan and M. T. C. Fang, "A comparison of three radiation models for the calculation of nozzle arcs," J. Phys. D: Appl. Phys., Vol. 37, pp. 3309-3318, 2004.

8.
L. S. Frost and R. W. Liebermann, "Composition and transport properties of \$SF_6\$ and their use in a simplified enthalpy flow arc model," Proc. IEEE, Vol. 59, pp. 474-485, Apr. 1971.

9.
J. F. Zhang, M. T. C. Fang and D.B. Newland, "Theoretical investigation of a 2kA DC nitrogen arc in a supersonic nozzle," J. Phys. D: Appl. Phys., Vol. 20, pp. 368-379, 1987.