NDLI: A new approach for calculating zone-2 setting of distance relays and its use in an adaptive protection system

Content Provider	IEEE Xplore Digital Library
Author	Sidhu, T.S. Baltazar, D.S. Palomino, R.M. Sachdev, M.S.
Copyright Year	1986
Abstract	This paper presents a method for calculating zone-2 setting of distance relays without causing coordination problems. The proposed method is based on the impedance seen by distance relays when faults are simulated on the reach of zone-1 of primary relays for the maximum and minimum generation outputs of the power system. It is shown that the proposed method increases the reach of zone-2 relays without causing coordination problems. The proposed method is modified for use in an adaptive protection system. It is shown that further improvements can be achieved when settings are calculated using the proposed method and the prevailing system conditions. Measures to alleviate the impact of communication failure are discussed. The proposed method and its adaptive version were applied to an existing power system and some results are reported in the paper.
Sponsorship	IEEE Power Engineering Society
Starting Page	70
Ending Page	77
Page Count	8
File Size	420348
File Format	PDF
ISSN	08858977
Volume Number	19
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protective relaying Adaptive systems Power system protection Power system relaying Power system faults Delay Power system simulation Digital relays Impedance Power generation
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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