Critical Parameters of Gas Cavities in Dielectric Liquids Stressed with High Electric Fields

• Authors: I. Timoshkin , S. Macgregor , M. Given , V. Atrazhev , V. Vorob'ev
• Languages of publication: EN

Abstracts

EN

Electric field stimulates formation of gas-filled cavities on sharp electrodes in insulating liquids which may initiate the dielectric breakdown of these liquids. Using an analytical model based on electrical and thermodynamic properties of fluids, the critical dimensions of gas-filled bubbles in ester fluid and transformer oils stressed with an impulse electric field were calculated. The results obtained in this paper could be important for the optimisation of the application of these liquids in high voltage and pulsed power systems.

Keywords

EN

52.80.Wq; 77.22.Jp

Discipline

• 52.80.Wq: Discharge in liquids and solids(for electric breakdown in liquids, see 77.22.Jp)
• 77.22.Jp: Dielectric breakdown and space-charge effects(for dielectric breakdown in gases, see 51.50.+v)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1022-1024

Dates

published

2009-06

Contributors

author

I. Timoshkin

• Department of Electronic and Electrical Engineering, University of Strathclyde, 204 George Street, Glasgow, G1 1XW, UK

author

S. Macgregor

• Department of Electronic and Electrical Engineering, University of Strathclyde, 204 George Street, Glasgow, G1 1XW, UK

author

M. Given

• Department of Electronic and Electrical Engineering, University of Strathclyde, 204 George Street, Glasgow, G1 1XW, UK

author

V. Atrazhev

• Joint Institute for High Temperatures, Russian Academy of Sciences, 12/14 Izhorskaya St., Moscow, 127412, Russia

author

V. Vorob'ev

• Joint Institute for High Temperatures, Russian Academy of Sciences, 12/14 Izhorskaya St., Moscow, 127412, Russia

References

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• 3. V. Vorob'ev, S. Malyshenko, Zh. Eksp. Teor. Fiz. 120, 863 (2001)
• 4. V. Vorob'ev, S. Malyshenko, A. Petrin, J. Phys. D 35, 257 (2002)
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• 6. V. Vorob'ev, S. Malyshenko, Exp. Therm. Fluid Sci. 26, 833 (2002)
• 7. V. Vorob'ev, S. Malyshenko, Appl. Phys. Lett. 60, 371 (2002)
• 8. S. MacGregor, I. Timoshkin, M. Given, Study of the dielectric properties of Diala D and Midel 7131 insulating fluids, Internal report, University of Strathclyde, 2007
• 9. P. Leask, Acta Phys. Pol. A 115, 998 (2009)
• 10. F.C. Perrier, A. Beroual, J.-L. Bessede, IEEE Int. Symp. Electrical Insulation, Indianapolis, USA 2004, p. 237

Identifiers

DOI

10.12693/APhysPolA.115.1022