Locating inter-disc faults in transformer winding using frequency response analysis

Yousof, M. F. M., Ekanayake, C. and Saha, T. K. (2013). Locating inter-disc faults in transformer winding using frequency response analysis. In: 2013 Australasian Universities Power Engineering Conference, AUPEC 2013. 2013 Australasian Universities Power Engineering Conference, AUPEC 2013, Hobart, TAS, Australia, (6725454.1-6725454.6). 29 September - 3 October 2013. doi:10.1109/AUPEC.2013.6725454

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Author Yousof, M. F. M.
Ekanayake, C.
Saha, T. K.
Title of paper Locating inter-disc faults in transformer winding using frequency response analysis
Conference name 2013 Australasian Universities Power Engineering Conference, AUPEC 2013
Conference location Hobart, TAS, Australia
Conference dates 29 September - 3 October 2013
Proceedings title 2013 Australasian Universities Power Engineering Conference, AUPEC 2013
Journal name 2013 Australasian Universities Power Engineering Conference, AUPEC 2013
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2013
Sub-type Fully published paper
DOI 10.1109/AUPEC.2013.6725454
Open Access Status DOI
ISBN 9781862959132
Start page 6725454.1
End page 6725454.6
Total pages 6
Language eng
Abstract/Summary Frequency response analysis (FRA) is a technique for evaluating the mechanical integrity of power transformers. This paper proposes a methodology to locate inter-disc fault in a transformer winding through FRA measurements. A core-type three phase transformer is used for simulating faults on several locations along the interleaved winding, from top to bottom end. Correlation coefficient, vector fitting and Nyquist plot are employed to assist in the analysis. By drawing the transfer function of the winding response on Nyquist plot, key information is extracted and two equations are developed to locate the fault.
Keyword Frequency response analysis
Transfer function
Transformer
Winding
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collections: Official 2014 Collection
School of Information Technology and Electrical Engineering Publications
 
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