NDLI: Turn-to-turn fault detection in transformers using negative sequence currents

Content Provider	IEEE Xplore Digital Library
Author	Babiy, M. Gokaraju, R. Garcia, J.C.
Copyright Year	2011
Description	Author affiliation: University of Saskatchewan, Saskatoon, Canada (Babiy, M.; Gokaraju, R.) \|\| Manitoba HVDC Research Centre, Winnipeg, Canada (Garcia, J.C.)
Abstract	This paper presents a new, simple and efficient protection technique which is based on negative sequence currents. Using this protection technique, it is possible to detect minor internal turn-to-turn faults in power transformers. Also, it can differentiate between internal and external faults. The discrimination is achieved by comparing the phase shift between two phasors of total negative sequence current. The new protection technique has been studied via an extensive simulation study using PSCAD®/EMTDC™ software in a three-phase power system and also has been compared with a traditional differential algorithm. The results indicate that the new technique can provide a fast and sensitive approach for identifying minor internal turn-to-turn faults in power transformers.
Starting Page	158
Ending Page	163
File Size	559298
Page Count	6
File Format	PDF
ISBN	9781457704055
e-ISBN	9781457704048
DOI	10.1109/EPEC.2011.6070187
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-03
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings negative sequence current Windings Phase transformers Artificial neural networks Transformer protection internal turn-to-turn faults Power transformers Circuit faults Relays
Content Type	Text
Resource Type	Article

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