NDLI: Computation of Very Fast Transient Overvoltages in Transformer Windings

Content Provider	IEEE Xplore Digital Library
Author	Popov, M. van der Sluis, L. Paap, G. C. de Herdt, H.
Copyright Year	1981
Abstract	The paper deals with the computation of very fast transient overvoltages (VFTO) in transformer windings. For this purpose an algorithm is developed. The applied algorithm uses a hybrid model, which is a combination of the multi-conductor transmission line model (MTLM) and the single-transmission line model (STLM). By means of the STLM, the voltages at the end of each coil are calculated. Then, these values are used in the MTLM to determine the distributed overvoltages along the turns. Also, this method significantly reduces the number of linear equations that needs to be solved for each frequency to determine the required voltages in frequency domain. The algorithm uses a modified continuous Fourier transformation that provides an accurate time domain computation. As an example, the inter-turn voltage distributions for two 500 kV auto-transformers are computed and compared with measurements provided by other publications.
Starting Page	62
Ending Page	62
Page Count	1
File Size	334552
File Format	PDF
ISSN	02721724
Volume Number	22
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surges Windings Power system transients Soil Electrodes Power system modeling Hybrid power systems Electro-osmosis Geometry Power transmission lines transformer Fast transients modified Fourier transformation overvoltages switching surges
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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