DocumentCode
452781
Title
Detection of Winding Deformations During Short Time Current Tests
Author
Santhi, S. ; Jayalalitha, S. ; Kumar, V. Jagadeesh ; Jayashankar, V.
Author_Institution
Dept. of Electr. Eng., Indian Inst. of Technol., Chennai
Volume
1
fYear
2005
fDate
16-19 May 2005
Firstpage
203
Lastpage
208
Abstract
Transformers are required to demonstrate the ability to withstand short circuit currents. Over currents due to short circuit can cause winding deformation. A new method of testing and analyzing winding deformation online without untanking is presented in this paper. A study of alternate excitations to detect winding deformation is made. A comparison of Fourier transform and Wigner-Ville distribution methods of analysis is carried out
Keywords
Fourier transforms; Wigner distribution; automatic test equipment; deformation; power transformer testing; transformer windings; Fourier transforms; Wigner-Ville distribution method; online testing method; short time current tests; transformer windings; winding deformation detection; Circuit testing; Fourier transforms; Frequency estimation; Frequency response; Geometry; Mathematical model; Power transformers; Short circuit currents; Thermal loading; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Conference_Location
Ottawa, Ont.
Print_ISBN
0-7803-8879-8
Type
conf
DOI
10.1109/IMTC.2005.1604100
Filename
1604100
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