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An investigation of discharges in oil insulation using UHF PD detection

Cleary, G.P. and Judd, M.D. (2002) An investigation of discharges in oil insulation using UHF PD detection. In: 2002 IEEE 14th International Conference on Dielectric Liquids., 2002-07-07 - 2002-07-12, Graz.

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In this paper, partial discharge (PD) is generated using a range of electrode configurations in an oil insulated system. High voltage AC at 50 Hz is applied to each test configuration and the PD activity is recorded using an ultra high frequency (UHF) monitoring system. The PD signals are analysed in a phase resolved form, from which the corresponding statistical distributions are determined. The results indicate that different defect types can be distinguished on the basis of their phase-resolved patterns measured at UHF. Possible physical causes for the discharge patterns are discussed.

Item type: Conference or Workshop Item (Paper)
ID code: 39040
Keywords: electrodes, voltage , system testing , signal resolution , signal analysis , petroleum, partial discharges, oil insulation , monitoring, frequency , investigation, discharges, oil insulation, UHF PD detection, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date Deposited: 10 Apr 2012 14:02
Last modified: 22 May 2015 09:07

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