Comparison of contact measurement and free-space radiation measurement of partial discharge signals

A. Jaber, P. Lazaridis, Y. Zhang, D. Upton, H. Ahmed, U. Khan, B. Saeed, P. Mather, M. F Q Vieira, R. Atkinson, M. Judd, I. A. Glover

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

9 Citations (Scopus)


Two partial discharge (PD) measurement techniques, a contact measurement technique (similar to the IEC 60270 standard measurement) and a free-space radiation (FSR) measurement technique, are compared for the case of a floating electrode PD source. The discharge pulse shapes and PD characteristics under high voltage DC conditions are obtained. A comparison shows greater similarity between the two measurements than was expected. It is inferred that the dominant mechanism in shaping the spectrum is the band-limiting effect of the radiating structure rather than band limiting by the receiving antenna. The cumulative energies of PD pulses in both frequency and time domains are also considered.
Original languageEnglish
Title of host publication2015 21st International Conference on Automation and Computing (ICAC)
Place of PublicationGlasgow, UK
Number of pages4
ISBN (Electronic)9780992680114
Publication statusPublished - Sep 2015


  • electromagnetic wave radiated
  • IEC 60270 measurement
  • partial discharge
  • radio frequency
  • ultra high frequency
  • antenna measurements
  • frequency-domain analysis

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