Paper moisture variation vs. mechanical deformation impacts on transformer frequency response spectrum

Mehdi Bagheri, B. T. Phung, Trevor Blackburn

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

2 Citations (Scopus)

Abstract

Frequency Response Analysis (FRA) has been in use as a diagnostic method for transformers since the last decade and is emerging as a popular technique. However, accurate interpretation of FRA measurements is still under development. Recent studies reveal that apart from winding deformation, FRA data can also be influenced by moisture variation in transformer paper insulation. A better understating of this issue can in turn improve the frequency response interpretation Hence, a specific model transformer was fabricated for this study and the experiment was concentrated on the paper moisture variation and mechanical deformation influences on FRA spectrum deviation. Different physical changes to the test object are investigated and the results are recorded and discussed. These enable comparison of insulation characteristic and mechanical defect impacts on FRA data, and reveal factors influencing the FRA spectrum.

Original languageEnglish
Title of host publicationProceedings of 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
PublisherInstitute of Electrical Engineers of Japan
Pages128-131
Number of pages4
ISBN (Print)9784886860866
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes
Event2014 International Symposium on Electrical Insulating Materials, ISEIM 2014 - Niigata, Japan
Duration: Jun 1 2014Jun 5 2014

Publication series

NameProceedings of the International Symposium on Electrical Insulating Materials

Other

Other2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
CountryJapan
CityNiigata
Period6/1/146/5/14

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Keywords

  • Frequency Response Analysis
  • Moisture Variation
  • Transformer
  • Winding Deformation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Bagheri, M., Phung, B. T., & Blackburn, T. (2014). Paper moisture variation vs. mechanical deformation impacts on transformer frequency response spectrum. In Proceedings of 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014 (pp. 128-131). [6870737] (Proceedings of the International Symposium on Electrical Insulating Materials). Institute of Electrical Engineers of Japan. https://doi.org/10.1109/ISEIM.2014.6870737