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Experimental studies on surface discharge dynamics and decay under different voltage waveforms and electrode shapes

Experimental studies on surface discharge dynamics and decay under different voltage waveforms and electrode shapes
Experimental studies on surface discharge dynamics and decay under different voltage waveforms and electrode shapes
This paper studies the development and decay of surface discharge under various voltage waveforms and electrode shapes in air at atmospheric pressure. The electro-optical Pockels method is utilised to measure and quantify the distribution of surface charge. Charge is deposited on the surface of the Bismuth Silicon Oxide (BSO) sensing crystal from a high voltage needle or mushroom electrode. Sinusoidal, square pulse and ramp voltage waveforms of different polarities are generated in order to investigate the differences in the total surface charge, inception voltage and distribution pattern of positive and negative discharges. The total charge deposited can be found by integrating the post-processed charge density over the entire surface. This technique also enables the study of charge decay with time.
surface discharge, charge decay, pockels
978-0-620-44585-6
119-123
Tran, T.N.
1554bb74-41c5-437f-85f9-e262160c5432
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Swingler, S.G.
4f13fbb2-7d2e-480a-8687-acea6a4ed735
Coventry, P.F.
076966c1-9904-4df0-a404-25f1675ab053
Tran, T.N.
1554bb74-41c5-437f-85f9-e262160c5432
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Swingler, S.G.
4f13fbb2-7d2e-480a-8687-acea6a4ed735
Coventry, P.F.
076966c1-9904-4df0-a404-25f1675ab053

Tran, T.N., Lewin, P.L., Wilkinson, J.S., Swingler, S.G. and Coventry, P.F. (2009) Experimental studies on surface discharge dynamics and decay under different voltage waveforms and electrode shapes. 16th International Symposium on High Voltage Engineering, South Africa. 24 - 28 Aug 2009. pp. 119-123 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper studies the development and decay of surface discharge under various voltage waveforms and electrode shapes in air at atmospheric pressure. The electro-optical Pockels method is utilised to measure and quantify the distribution of surface charge. Charge is deposited on the surface of the Bismuth Silicon Oxide (BSO) sensing crystal from a high voltage needle or mushroom electrode. Sinusoidal, square pulse and ramp voltage waveforms of different polarities are generated in order to investigate the differences in the total surface charge, inception voltage and distribution pattern of positive and negative discharges. The total charge deposited can be found by integrating the post-processed charge density over the entire surface. This technique also enables the study of charge decay with time.

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More information

Published date: 24 August 2009
Venue - Dates: 16th International Symposium on High Voltage Engineering, South Africa, 2009-08-24 - 2009-08-28
Keywords: surface discharge, charge decay, pockels
Organisations: Optoelectronics Research Centre, Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 267814
URI: https://eprints.soton.ac.uk/id/eprint/267814
ISBN: 978-0-620-44585-6
PURE UUID: 12a6dd81-0e9f-4d9a-a9d1-922c94909440
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 31 Aug 2009 10:24
Last modified: 06 Jun 2018 13:19

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Contributors

Author: T.N. Tran
Author: P.L. Lewin
Author: J.S. Wilkinson ORCID iD
Author: S.G. Swingler
Author: P.F. Coventry

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