Shunt capacitance influences on single-phase transformer FRA spectrum

Mehdi Bagheri, B. T. Phung, Trevor Blackburn, Ali Naderian

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

9 Citations (Scopus)

Abstract

Frequency response analysis (FRA) is considered as an accurate, fast, effective and sensitive method for detection of mechanical defects within power transformers, providing worthy information on active part structure. FRA measurement has been industrialized and employed since the last decade while FRA spectrum interpretation is still under development. The interaction of distributed resistances, series and shunt capacitances as well as self- and mutual-inductances in transformer winding leads to FRA spectrum oscillations. In fact, each and every parameter has its own impact on this spectrum. This study has concentrated on shunt capacitance influences on frequency response spectrum oscillations in Bode diagram. Shunt capacitance impacts on low-, mid- and high-frequency bands of FRA spectrum are discussed. A practical study on a single phase air-core glassy model transformer is carried out to explore the influence of shunt capacitances of HV and LV windings with respect to the transformer tank on FRA spectrum. In addition, a single phase 11/0.25 kV, 25 kVA core type distribution transformer is also tested to evaluate the shunt capacitance impacts on FRA fluctuations.

Original languageEnglish
Title of host publication2013 IEEE Electrical Insulation Conference, EIC 2013
Pages225-229
Number of pages5
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event31st Electrical Insulation Conference, EIC 2013 - Ottawa, ON, Canada
Duration: Jun 2 2013Jun 5 2013

Other

Other31st Electrical Insulation Conference, EIC 2013
CountryCanada
CityOttawa, ON
Period6/2/136/5/13

Fingerprint

Spectrum analysis
Frequency response
Capacitance
Bode diagrams
Transformer windings
Power transformers
Inductance
Frequency bands
Defects
Air

Keywords

  • Frequency response analysis
  • Shunt capacitance
  • Transformer diagnosis
  • Transformer winding deformation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Bagheri, M., Phung, B. T., Blackburn, T., & Naderian, A. (2013). Shunt capacitance influences on single-phase transformer FRA spectrum. In 2013 IEEE Electrical Insulation Conference, EIC 2013 (pp. 225-229). [6554238] https://doi.org/10.1109/EIC.2013.6554238

Shunt capacitance influences on single-phase transformer FRA spectrum. / Bagheri, Mehdi; Phung, B. T.; Blackburn, Trevor; Naderian, Ali.

2013 IEEE Electrical Insulation Conference, EIC 2013. 2013. p. 225-229 6554238.

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

Bagheri, M, Phung, BT, Blackburn, T & Naderian, A 2013, Shunt capacitance influences on single-phase transformer FRA spectrum. in 2013 IEEE Electrical Insulation Conference, EIC 2013., 6554238, pp. 225-229, 31st Electrical Insulation Conference, EIC 2013, Ottawa, ON, Canada, 6/2/13. https://doi.org/10.1109/EIC.2013.6554238
Bagheri M, Phung BT, Blackburn T, Naderian A. Shunt capacitance influences on single-phase transformer FRA spectrum. In 2013 IEEE Electrical Insulation Conference, EIC 2013. 2013. p. 225-229. 6554238 https://doi.org/10.1109/EIC.2013.6554238
Bagheri, Mehdi ; Phung, B. T. ; Blackburn, Trevor ; Naderian, Ali. / Shunt capacitance influences on single-phase transformer FRA spectrum. 2013 IEEE Electrical Insulation Conference, EIC 2013. 2013. pp. 225-229
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