Title :
A wavelet-based differential transformer protection
Author :
Gómez-Morante, Moisés ; Nicoletti, Denise W.
Author_Institution :
Worcester Polytech. Inst., MA, USA
fDate :
31 Jan-4 Feb 1999
Abstract :
Summary form only given as follows. Transformer inrush currents were traditionally evaluated by means of Fourier analysis. Such an approach affects the design of transformer differential relays concerning their immunity to inrush currents. This paper presents a wavelet-based method, which seems to provide a reliable and computationally efficient tool for distinguishing between internal faults and inrush currents.
Keywords :
power transformer protection; relay protection; wavelet transforms; Fourier analysis; differential transformer protection; inrush currents; inrush currents immunity; internal faults; transformer differential relays; transformer inrush currents; wavelet-based method; Protective relaying; Surge protection;
Conference_Titel :
Power Engineering Society 1999 Winter Meeting, IEEE
Print_ISBN :
0-7803-4893-1
DOI :
10.1109/PESW.1999.747344
