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Detection of GHz frequency components of partical discharge in various media

Fernando, S, Bojovschi, A, Wong, K and Rowe, W 2009, 'Detection of GHz frequency components of partical discharge in various media', in Kenneth John Nixon and Jan Peter Reynders (ed.) Proceedings of the 16th International Symposium on High Voltage Engineering (ISH 2009), Cape Town, South Africa, 24-28 Aug 2009, pp. 687-692.

Document type: Conference Paper
Collection: Conference Papers

Title Detection of GHz frequency components of partical discharge in various media
Author(s) Fernando, S
Bojovschi, A
Wong, K
Rowe, W
Year 2009
Conference name 16th International Symposium on High Voltage Engineering (ISH 2009)
Conference location Cape Town, South Africa
Conference dates 24-28 Aug 2009
Proceedings title Proceedings of the 16th International Symposium on High Voltage Engineering (ISH 2009)
Editor(s) Kenneth John Nixon and Jan Peter Reynders
Publisher South African Institute of Electrical Engineers
Place of publication Cape Town, South Africa
Start page 687
End page 692
Total pages 6
Abstract This paper concentrates on the characterization of high frequency radiation from Partial Discharge sources in dielectric materials. It is envisaged that identifying partial discharge radiation in this band could provide an advantageous detection solution, as interferers such as television and other common radio communication bands will not cloud the signal analysis. The experimental setup consists of a high voltage electrode in a point-to-plane excitation architecture. Three insulator materials are considered as the dielectric medium between the point and plane. A wideband double-ridged waveguide horn antenna located in close proximity to the partial discharge source is used as the partial discharge radiation sensor. The Power Spectral Density (PSD) is calculated and analyzed from 0 to 2.5 GHz. The influence of insulator geometry, dielectric properties, and imperfections (cavities/voids) on the resulting partial discharge radiation is under investigation. Results have shown that partial discharge generation in the material samples tested displays consistent PSD fluctuations in the frequency range between 300 MHz and 1.1 GHz.
Subjects Electrical and Electronic Engineering not elsewhere classified
Copyright notice Copyright © SAIEE, Innes House, Johannesburg
ISBN 9780620445849
 
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Created: Fri, 28 Oct 2011, 10:03:00 EST by Catalyst Administrator