An investigation on the influence of tap changer on Frequency Response Analysis

Yousof, M. F. M., Ekanayake, C. and Saha, T. K. (2015). An investigation on the influence of tap changer on Frequency Response Analysis. In: ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM, Sydney, Australia, (963-966). 19-22 July 2015. doi:10.1109/ICPADM.2015.7295434


Author Yousof, M. F. M.
Ekanayake, C.
Saha, T. K.
Title of paper An investigation on the influence of tap changer on Frequency Response Analysis
Conference name IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM
Conference location Sydney, Australia
Conference dates 19-22 July 2015
Convener IEEE
Proceedings title ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials
Journal name Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
Series Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
Place of Publication Piscataway, NJ, United States
Publisher Institute for Electrical and Electronic Engineers
Publication Year 2015
Sub-type Fully published paper
DOI 10.1109/ICPADM.2015.7295434
Open Access Status Not Open Access
ISBN 9781479989034
Volume 2015-October
Start page 963
End page 966
Total pages 4
Collection year 2016
Language eng
Abstract/Summary Tap changer in power transformer has a high failure rate thus its condition requires extra attention. In this paper, the possibility of using Frequency Response Analysis to monitor tap changer status was explored. Initial study showed that the settings in tap changer can influence the frequency response of HV and LV windings. In addition, the low frequency region of the inductive inter-winding response was used to calculate the winding turns ratio. By simulating a faulty tap changer, the frequency response was able to show clear variations especially on the short circuit test. With the findings, a flow chart was proposed, which can be served as a guideline to determine the condition of tap changer based on the changes in the response. The chart also considered other types of fault.
Keyword Frequency response analysis
Tap changer
Transformer
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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