Title :
Harmonic analysis of transient currents during sympathetic interaction
Author :
Bronzeado, H.S. ; Brogan, P.B. ; Yacamini, R.
Author_Institution :
Companhia Hidro Eletrica do Sao Francisco, Recife, Brazil
fDate :
11/1/1996 12:00:00 AM
Abstract :
The phenomenon of sympathetic interaction between transformers, which is very likely to occur when a transformer is energised onto a system to which there are other transformers already connected, changes significantly the duration and the magnitude of the transient magnetising currents in the transformers involved. This phenomenon is discussed in the paper, with the harmonic content of the transient currents and its associated overvoltages being analysed. It is shown that the importance of taking into consideration the saturation characteristics of the transformers already in operation when studying transformer transient inrush
Keywords :
harmonic analysis; magnetisation; overvoltage; power transformers; transient analysis; harmonic analysis; saturation characteristics; temporary harmonic overvoltages; transformer energisation; transformer transient inrush; transformers sympathetic interaction; transient currents; transient magnetising currents; Harmonic analysis; Magnetic flux; Power engineering and energy; Power system harmonics; Power system transients; Saturation magnetization; Surges; Switches; Transformers; Transient analysis;
Journal_Title :
Power Systems, IEEE Transactions on
