Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations

Mehdi Bagheri, Mohammad Salay Naderi, Trevor Blackburn, Zhang Daming Zhang

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

7 Citations (Scopus)

Abstract

Diagnosis methods have been employed to recognize transformer internal defects since many years ago. Frequency Response Analysis (FRA) has been utilized as an offline diagnosis test since last decade to investigate mechanical integrity of transformer while this technique is quite capable to provide worthy information about electromagnetic characteristics of the windings. This study has concentrated on transformer winding frequency response trace oscillations presented in Bode diagram. Mathematical approach using travelling wave theory is employed to explore frequency response trace behavior. The correlation between winding behavior in frequency domain and time domain is highlighted. Eventually, practical study has been performed on continuous and interleaved 66 kV disc windings to validate mathematical calculation.

Original languageEnglish
Title of host publicationPECon 2012 - 2012 IEEE International Conference on Power and Energy
Pages962-966
Number of pages5
DOIs
Publication statusPublished - Dec 1 2012
Event2012 IEEE International Conference on Power and Energy, PECon 2012 - Kota Kinabalu, Malaysia
Duration: Dec 2 2012Dec 5 2012

Publication series

NamePECon 2012 - 2012 IEEE International Conference on Power and Energy

Other

Other2012 IEEE International Conference on Power and Energy, PECon 2012
CountryMalaysia
CityKota Kinabalu
Period12/2/1212/5/12

Keywords

  • Frequency response analysis
  • Initial impulse voltage distribution
  • Transformer
  • Winding structure

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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