Localization of partial discharges using UHF sensors in power transformers

Z. B. Shen, E. F. El-Saadany

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Transformer failure is usually triggered by external events such as lightning strikes, switching transients, or short circuits. However, susceptibility to these events is usually due to some incipient weakness in the insulation system, which may be detected at an earlier stage by monitoring partial discharge activities. Usually, PDs are detected acoustically, chemically, or electrically. The acoustic and chemical PD detection technology has been successfully used on power transformers for many years. However, in this paper, The PD's UHF phenomenon in power transformers is simulated by MATLAB and FEMLAB, and the monitoring method of using UHF sensors is analyzed. Furthermore, a new PD localization method using three UHF sensors is also proposed.

Original languageBritish English
Title of host publication2006 IEEE Power Engineering Society General Meeting, PES
PublisherIEEE Computer Society
ISBN (Print)1424404932, 9781424404933
DOIs
StatePublished - 2006
Event2006 IEEE Power Engineering Society General Meeting, PES - Montreal, QC, Canada
Duration: 18 Jun 200622 Jun 2006

Publication series

Name2006 IEEE Power Engineering Society General Meeting, PES

Conference

Conference2006 IEEE Power Engineering Society General Meeting, PES
Country/TerritoryCanada
CityMontreal, QC
Period18/06/0622/06/06

Keywords

  • Condition monitoring
  • Dielectric material
  • Monitoring system
  • Partial discharge (PD)
  • Power transformer
  • Simulation
  • UHF sensor
  • Ultra high frequency (UHF) signal

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