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Three-Phase Transformer Winding Deformation Diagnostics using Terminal Capacitance Measurements
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Prasad Joshi
Published/Copyright:
July 23, 2009
This paper presents a novel method for determining location and extent of deformation in three-phase transformer windings. It is established, with experiments on laboratory scale model coils, that the deformation coefficient is an effective indicator of deformation in star and delta connected windings. The diagnostic procedure is easy to implement and deskilled. The diagnostic procedure is elaborated in the paper. Simulation results are compared with experimental readings on the model coils.
Keywords: axial deformation; deformation coefficient; delta connected windings; ground capacitance; power transformers; radial deformation; series capacitance; star connected windings
Published Online: 2009-7-23
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Keywords for this article
axial deformation;
deformation coefficient;
delta connected windings;
ground capacitance;
power transformers;
radial deformation;
series capacitance;
star connected windings
Articles in the same Issue
- Article
- Bibliography on Power Systems Probabilistic Security Analysis 1968-2008
- Effect of Dry Zone Formation around Underground Power Cables on Their Ratings
- A New Digital Relaying Scheme for Parallel Transmission Line
- Power Quality Disturbance Classification Based on Adaptive Neuro-Fuzzy System
- Power Flow Analysis of HVAC and HVDC Transmission Systems for Offshore Wind Parks
- Analysis of Frequencies Radiated by the Point-to-Plane Electrode Configuration under DC and AC Voltages
- Minimization of Financial Losses due to Voltage Sag in an Indian Distribution System using D-STATCOM
- Three-Phase Transformer Winding Deformation Diagnostics using Terminal Capacitance Measurements
