Electrical breakdown of short non-uniform air gaps
Hogg, M. G. and Timoshkin, I. V. and Macgregor, S. J. and Wilson, M. P. and Given, M. J. and Wang, T.; (2013) Electrical breakdown of short non-uniform air gaps. In: Digest of Technical Papers-IEEE International Pulsed Power Conference. IEEE, GBR. ISBN 9781467351676 (https://doi.org/10.1109/PPC.2013.6627482)
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Abstract
The breakdown voltage of air in highly divergent electric fields in not very short gaps (a few mm and above) is typically higher for negative energisation compared to positive energisation. Volumetric negative space charge, created by attachment of electrons to electronegative molecules in the case of negative energisation, reduces the field in the vicinity of the sharp cathode, resulting in higher breakdown voltages. This paper investigates self-breakdown voltages in short, mm and sub-mm gaps formed by point and plane electrodes and filled with atmospheric air at pressures 0.5-3.5 atm (abs). It is expected that space charge effects will change self-breakdown voltages for positive and negative energisation modes resulting in their different functional behaviour as compared with larger inter-electrode gaps.
ORCID iDs
Hogg, M. G. ORCID: https://orcid.org/0000-0002-9335-3440, Timoshkin, I. V. ORCID: https://orcid.org/0000-0002-0380-9003, Macgregor, S. J. ORCID: https://orcid.org/0000-0002-0808-585X, Wilson, M. P., Given, M. J. ORCID: https://orcid.org/0000-0002-6354-2486 and Wang, T. ORCID: https://orcid.org/0000-0003-3054-0772;-
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Item type: Book Section ID code: 50857 Dates: DateEvent4 December 2013PublishedNotes: (c) 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works Subjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering
University of Strathclyde > University of StrathclydeDepositing user: Pure Administrator Date deposited: 19 Dec 2014 15:24 Last modified: 02 Oct 2024 00:12 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/50857