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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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Critical parameters of gas cavities in dielectric liquids stressed with high electric field

Timoshkin, I. and MacGregor, S.J. and Given, M.J. and Atrazhev, V. and Vorob'ev, V. (2009) Critical parameters of gas cavities in dielectric liquids stressed with high electric field. Acta Physica Polonica A, 115 (6). pp. 1022-1024. ISSN 0587-4246

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Abstract

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.