NDLI: Impact of advancements of numerical distance relays over setting and testing the ground faults characteristics

Content Provider	IEEE Xplore Digital Library
Author	Paduraru, C.
Copyright Year	2004
Description	Author affiliation: MEGGER, Dallas, TX, USA (Paduraru, C.)
Abstract	The paper describes different techniques in testing the characteristics of modern microprocessor impedance relays and their influence over developing a valid test plan. First, a brief description of historical development of distance relays is described. Then, the need for automated testing of the relays is explained. A practical application in testing phase-to-ground faults characteristics is presented. First the concept of loop impedance calculation is described. Challenges experienced and solutions provided for automatic testing of the impedance relays are shown. The paper emphasizes the importance of correct selection of the zero sequence compensation factors and shows the impact over relay operation. Finally the results are summarized and conclusions are drawn.
Starting Page	87
Ending Page	90
File Size	532581
Page Count	4
File Format	PDF
ISBN	0780386108
DOI	10.1109/ICPST.2004.1459971
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-21
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protective relaying Impedance Automatic testing Relays Power system simulation Power system relaying Modems Microprocessors Protection Manufacturing
Content Type	Text
Resource Type	Article

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Impact of advancements of numerical distance relays over setting and testing the ground faults characteristics