Advanced on-line condition monitoring of, and inter-turn short circuit setectionin, power transformers

Ehnaish Aburaghiega, M E A Farrag, Donald Hepburn, Belen Garcia

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

2 Citations (Scopus)
96 Downloads (Pure)


Transformers are an important part of any electrical power system network, warning of fault before failure is vital. The application of on-line fault detection reduces the cost of outages and the possibility of unpredicted failures. This paper outlines an electrically based on-line condition monitoring and short circuit detection method for power transformers. This method uses measurements of voltage and current in both sides of a transformer to classify its health and to identify fault conditions while in operation. Simulation results, relating to a number of short circuit winding faults, are analyzed and discussed. The results confirm that it is possible to identify a variety of short circuit conditions in primary and secondary windings from externally measurable parameters, i.e. measurement of voltages and currents in a transformer’s windings can, based on available winding data, identify changes inside the transformer. The effect of load variation on the magnitude of the measured voltages and currents is also considered in this analysis.
Original languageEnglish
Title of host publication2018 53rd International Universities Power Engineering Conference (UPEC)
ISBN (Electronic)9781538629109
ISBN (Print)978-1-5386-2910-9
Publication statusPublished - 13 Dec 2018


  • fault detection
  • loop current
  • on-line condition monitoring
  • short circuit
  • voltages and currents

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Renewable Energy, Sustainability and the Environment


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