NDLI: An investigation into the effect of insulation defect on radiometric partial discharge measurements

Content Provider	IEEE Xplore Digital Library
Author	Sa Xiao Moore, P.J. Judd, M.D. Portugues, I.
Copyright Year	2009
Description	Author affiliation: University of Strathclyde Glasgow, UK, G1 1XW (Sa Xiao; Moore, P.J.; Judd, M.D.) \|\| Elimpus Ltd, Lanarkshire, UK, ML4 3NQ (Portugues, I.)
Abstract	Measuring partial discharge (PD) activity in high voltage plant using radio frequency (RF) equipment is a well-established technique used to monitor insulation integrity. This paper presents a study of partial discharge behaviour involving gaseous, liquid and solid dielectrics typical of insulation defects that may occur in practice. Discharge pulses with varying rise times and decay times were simulated using a double exponential pulse shape to represent PDs in different dielectrics. The results show how the differing rate of change of current among PD pulses affects the frequency spectra and energy spread of the radiated RF signals. In the RF PD experimental measurements, results are in accordance with the simulation results which incorporated the effects of changing PD behaviours in different dielectrics. It concluded that PDs in different insulating systems produce varying physical effects corresponding to the different discharge mechanisms. These results can provide insight for the interpretation of signals from radiometric PD measurement systems.
Starting Page	67
Ending Page	71
File Size	1202254
Page Count	5
File Format	PDF
ISBN	9781424439157
DOI	10.1109/EIC.2009.5166326
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-31
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiometry Partial discharge measurement Partial discharges Dielectrics and electrical insulation Dielectric measurements Radio frequency Dielectric liquids Pulse shaping methods Frequency measurement Voltage
Content Type	Text
Resource Type	Article

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