Title :
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
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;
Conference_Titel :
Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE
Conference_Location :
Pittsburgh, PA
Print_ISBN :
978-1-4244-1905-0
Electronic_ISBN :
1932-5517
DOI :
10.1109/PES.2008.4596256
