Transformer winding diagnostics using deformation coefficient

Author

Joshi, P.M. ; Kulkarni, S.V.

Author_Institution

Syst. & Control Eng. Dept., Indian Inst. of Technol. Bombay, Mumbai

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

4

Abstract

This work presents the use of terminal capacitance measurements to detect deformations in transformer windings. The lumped parameter representation of windings is considered. The deformation coefficient (DC) derived from the measurements is used to detect winding deformations. The extent and location of deformation can also be determined by this method. This paper presents the mathematical basis underlying the method of using DC for windings. The formulation of DC is also explained. Simulation results are given to demonstrate the applicability of the method for deformation diagnostics.

Keywords

mathematical analysis; transformer windings; deformation coefficient; lumped parameter representation; mathematical method; terminal capacitance measurements; transformer winding diagnostics; Capacitance measurement; Deformable models; Equivalent circuits; Frequency measurement; Frequency response; Impedance; Inductance; Power transformers; US Department of Transportation; Windings; Deformation coefficient; frequency response analysis; ground capacitance; power transformer; series capacitance; winding deformation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4596256

Filename

4596256