DocumentCode
1252072
Title
A wavelet-based differential transformer protection
Author
Gomez-Morante, M. ; Nicoletti, Denise W.
Author_Institution
Worcester Polytech. Inst., MA, USA
Volume
14
Issue
4
fYear
1999
fDate
10/1/1999 12:00:00 AM
Firstpage
1351
Lastpage
1358
Abstract
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; inrush currents; inrush currents immunity; internal faults; transformer differential relays; transformer inrush currents; wavelet-based differential transformer protection; Circuit faults; Frequency; Magnetic analysis; Magnetization; Power transformers; Protective relaying; Relays; Surge protection; Transient analysis; Wavelet analysis;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.796228
Filename
796228
Link To Document