NDLI: Performance Enhancement of the Transformer Restricted Earth Fault Relay

Content Provider	IEEE Xplore Digital Library
Author	Davarpanah, M. Sanaye-Pasand, M. Iravani, R.
Copyright Year	1986
Abstract	The restricted earth fault (REF) relay is one of the protection units of the transformer digital protection system which typically has a fast response and thus is prone to maloperation. Based on measurement results and time-domain simulation results, this paper provides a comprehensive performance evaluation of the REF relay which is an augmented-based adaptive restraint current approach for performance stabilization. The investigation results provide justifications to introduce modification to the relay to improve its performance during transients and, thus, improve the relay security. This paper also introduces and evaluates a scheme to modify the REF relay performance. The proposed scheme has been implemented in the field, and the results indicate performance improvement.
Sponsorship	IEEE Power Engineering Society
Starting Page	467
Ending Page	474
Page Count	8
File Size	1549755
File Format	PDF
ISSN	08858977
Volume Number	28
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Circuit faults Power transformers Surges Fault currents Trajectory Current transformers transformer protection Current-transformer (CT) saturation inrush current relay maloperation relay transient test restricted earth fault (REF) relay
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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