A Review of Partial Discharge Detection Techniques in Power Transformers

Shady Khalil, Mahmoud Sayed, Mohammed A. Shams, Amira Mohamed

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

Abstract

Power Transformer is the heart of the electric power system. One of the main causes of power transformers' insulation failure is Partial discharge (PD). Partial discharges are electrical sparks which occur within the insulation material of power transformers. Degradation of insulation material is indicated by the presence of partial discharges. PD detection in transformers is an intricate task due to the inductive behavior of the transformer windings. The two main categories of PD detection are on-line detection techniques and off-line detection techniques. Off-line PD detection techniques incur high costs due to the downtime of power transformers alongside the utilization of expensive instrumentation. In contrast, on-line PD detection techniques are less expensive and can be performed on energized power transformers. Due to the variable nature of PD activity in power transformers, continuous on-line monitoring of PD activity is an optimal solution for gaining deeper insights into the characteristics of the PD activity. This paper provides an overview of PD activity in power transformers including its mechanism and mathematical modeling. Off-line and on-line PD detection techniques are reviewed and compared.

Original languageEnglish
Title of host publication2018 20th International Middle East Power Systems Conference, MEPCON 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1020-1025
Number of pages6
ISBN (Electronic)9781538666548
DOIs
Publication statusPublished - 4 Feb 2019
Event20th International Middle East Power Systems Conference, MEPCON 2018 - Cairo, Egypt
Duration: 18 Dec 201820 Dec 2018

Publication series

Name2018 20th International Middle East Power Systems Conference, MEPCON 2018 - Proceedings

Conference

Conference20th International Middle East Power Systems Conference, MEPCON 2018
CountryEgypt
CityCairo
Period18/12/1820/12/18

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Keywords

  • corona
  • electric breakdown
  • partial discharges
  • power transformers

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Khalil, S., Sayed, M., Shams, M. A., & Mohamed, A. (2019). A Review of Partial Discharge Detection Techniques in Power Transformers. In 2018 20th International Middle East Power Systems Conference, MEPCON 2018 - Proceedings (pp. 1020-1025). [8635126] (2018 20th International Middle East Power Systems Conference, MEPCON 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEPCON.2018.8635126