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Automated analysis of digital relay data based on expert system

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2 Author(s)
X. Luo ; Department of Electrical Engineering, Texas A&M University, College Station, 77843-3128, USA ; M. Kezunovic

Modern digital protective relays generate various flies and reports which contain abundant data regarding fault disturbances and protection system operation. This paper presents an expert system based application for automated analysis of digital relay data. In this application, forward chaining reasoning is used to predict expected protection operation while backward chaining reasoning is employed to validate and diagnosis of actual protection operation. An EMTP/C++ based digital relay model with capability of insertion of user-defined errors and generation of files and reports is developed. The analysis capability of this application is tested using the relay model.

Published in:

Power Tech, 2005 IEEE Russia

Date of Conference:

27-30 June 2005