NDLI: Modeling transformer internal faults using Matlab

Content Provider	IEEE Xplore Digital Library
Author	Elrefaie, H.B. Megahed, A.I.
Copyright Year	2002
Description	Author affiliation: Electr. Eng. Dept., Alexandria Univ., Egypt (Elrefaie, H.B.; Megahed, A.I.)
Abstract	This paper describes a technique for modeling transformer internal faults using MATLAB. In this technique a model for simulating a two-winding-single-phase transformer is modified to be suitable for simulating an internal fault in one of the windings. The transformer is represented by three-windings in this case; one winding is the healthy winding, while the other two represent the faulty windings. Three differential equations representing these windings are simulated and solved using MATLAB/SIMULINK. Simulation results include inrush magnetizing current and internal fault current. A fast Fourier transform (FFT) is used to analyze the simulated currents, and it shows that the second harmonic component of the internal fault current is not predominant which agrees with transformer theories.
Starting Page	226
Ending Page	230
File Size	385378
Page Count	5
File Format	PDF
ISBN	0780375270
DOI	10.1109/MELECON.2002.1014563
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-07
Publisher Place	Egypt
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mathematical model MATLAB Circuit faults Phase transformers Power system modeling Computational modeling Power system simulation Couplings Differential equations Fault currents
Content Type	Text
Resource Type	Article

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