Jump to ContentJump to Main Navigation
Show Summary Details
More options …

International Journal of Emerging Electric Power Systems

Editor-in-Chief: Sidhu, Tarlochan

Ed. by Khaparde, S A / Rosolowski, Eugeniusz / Saha, Tapan K / Gao, Fei


CiteScore 2018: 0.86

SCImago Journal Rank (SJR) 2018: 0.220
Source Normalized Impact per Paper (SNIP) 2018: 0.430

Online
ISSN
1553-779X
See all formats and pricing
More options …
Volume 14, Issue 6

Issues

Estimation of Transformer Winding Capacitances through Frequency Response Analysis – An Experimental Investigation

Krupa Shah
  • Corresponding author
  • Department of Electrical Engineering, Indian Institute of Technology Gandhinagar, VGEC College Campus Visat-Gandhinagar Highway, Ahmedabad, Gujarat 382424, India
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ K. Ragavan
  • Department of Electrical Engineering, Indian Institute of Technology Gandhinagar, VGEC College Campus Visat-Gandhinagar Highway, Ahmedabad, Gujarat 382424, India
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-10-19 | DOI: https://doi.org/10.1515/ijeeps-2013-0098

Abstract

This article focuses on developing a non-invasive method for determining capacitances using frequency response data. The proposed methodology involves acquiring driving-point impedance of the winding under consideration over wide frequency range. With certain terminal conditions and using the terminal impedance measured at specific frequencies, input and shunt capacitances are determined. For the purpose of estimating series capacitance of the winding, an algorithm is proposed. To demonstrate the capability of the method, initially model coils that have provisions for connecting external capacitances are considered. Then, it is found that the estimated values of capacitances are nearly same as those of connected capacitances. The method is, then, extended to transformer winding, and a capacitive ladder network is constructed. To assess the accuracy of estimation, capacitive voltage distribution is utilized. That is, the voltage distribution in the winding is compared with that of synthesized circuit. A good agreement between those data reveals that the estimated capacitance values are accurate.

Keywords: driving-point impedance; frequency response analysis; power transformer; series capacitance; terminal measurement

References

  • 1.

    Stein GM. A study of the initial surge distribution in concentric transformer windings. IEEE Trans PAS 1964;83:877–93.CrossrefGoogle Scholar

  • 2.

    Dick EE, Erven CC. Transformer diagnostic testing viafrequency response analysis. IEEE Trans PAS 1978;97:2144–53.CrossrefGoogle Scholar

  • 3.

    Bjerkan E. High frequency modelling of power transformer: stresses and diagnostics. PhD thesis, Norwegian University of Science and Technology, Trondheim, Nov 2005.Google Scholar

  • 4.

    Satish L, Sahoo SK. Locating faults in a transformer winding: an experimental study. Electric Power Syst Res 2009;79:89–97.CrossrefWeb of ScienceGoogle Scholar

  • 5.

    Blume LF, Boyajian A, Camilli G, Lennox TC, Minneci S, Montsinger VM. Transformer engineering, 2nd ed. John Wiley & Sons: New York; Chapman & Hall: London, 1951.Google Scholar

  • 6.

    Abetti PA, Maginniss FJ. Natural frequencies of coils and windings determined by equivalent circuit. AIEE Trans PAS 1953;72:495–504.Google Scholar

  • 7.

    Allibone TE, Mckenzie DB, Perry FR. The effects of impulse voltages on transformer windings. J IEE 1937;80:117–46.Google Scholar

  • 8.

    Pramanik S, Satish L. Estimation of series capacitance of a transformer winding based on frequency-response data: an indirect measurement approach. IEEE Trans Power Deliv 2011;26:2870–8.Web of ScienceCrossrefGoogle Scholar

  • 9.

    Jayaram BN. The series capacitance of transformerwindings. Electrotechnics, Indian Institute of Science, No: 28, 1961:69–87.Google Scholar

  • 10.

    White EL. An experimental study of surges and oscillations in windings of core-type transformers. Proc IEE 1960;107:421–31.Google Scholar

  • 11.

    Chowdhuri P. Calculation of series capacitance for transient analysis of windings. IEEE Trans Power Deliv 1987;2:133–9.CrossrefGoogle Scholar

  • 12.

    Miki A, Hosoya T, Okuyama K. A calculation method for impulse voltage distribution and transferred voltage in transformer windings. IEEE Trans PAS 1978;97:930–9.CrossrefGoogle Scholar

  • 13.

    Bjerkan E, Hoidalen HK. High frequency FEM-based power transformer modeling: investigation of internal stresses due to network initiated overvoltages. Electric Power Syst Res 2007;77:1483–9.CrossrefWeb of ScienceGoogle Scholar

  • 14.

    Rashtchi V, Shayeghi H, Mahdavi M, Kimiyaghalam A, Rezapour E. Using an improved PSO algorithm for parameter identification of transformer detailed model. Int J Electron Electrical Eng 2008;2:666–72.Google Scholar

  • 15.

    Shintemirov A, Tang WJ, Tang WH, Wu QH. Improved modelling of power transformer winding using bacterial swarming algorithm and frequency response analysis. Electric Power Syst Res 2010;80:1111–20.CrossrefWeb of ScienceGoogle Scholar

  • 16.

    Ragavan K. An efficient solution to generalized model of a transformer winding and localization of discrete changes based on measurements. PhD thesis, Indian Institute of Science, 2006.Google Scholar

  • 17.

    Dent BM, Hartil ER, Miles JG. A method of analysis of transformer impulse voltage distribution using a digital computer. Proc IEE, Part A 1958;105:445–59.CrossrefGoogle Scholar

  • 18.

    Oguz Soysal A. A method for wide frequency range modeling of power transformers and rotating machines. IEEE Trans Power Deliv 1993;8:1802–10.CrossrefGoogle Scholar

  • 19.

    Guillemin EA. Synthesis of passive networks. New York: John Wiley & Sons, 1957.Google Scholar

About the article

Published Online: 2013-10-19


Citation Information: International Journal of Emerging Electric Power Systems, Volume 14, Issue 6, Pages 549–559, ISSN (Online) 1553-779X, ISSN (Print) 2194-5756, DOI: https://doi.org/10.1515/ijeeps-2013-0098.

Export Citation

©2013 by Walter de Gruyter Berlin / Boston.Get Permission

Comments (0)

Please log in or register to comment.
Log in