Modular relay architecture unifies protection and control

Author

Kojovic, Ljubomir A. ; McCall, Jack ; Newton, Tim

Author_Institution

Cooper Power Syst., Franksville, WI, USA

Volume

11

Issue

3

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

30

Lastpage

35

Abstract

This article begins with a comparison in protective relaying designs between electromechanical and static relays versus microprocessor-based relays, and a comparison of methods and levels of integration of protection, control, and monitoring functions for microprocessor-based relays. The focus then shifts to a new universal protective relay architecture and its efficiencies for troubleshooting and outage analyses. Emphasis is on the architecture organization and its capabilities, such as online viewing of the relay and breaker/recloser statuses, monitoring of voltage and current magnitudes and other programmed measuring quantities, oscillography features, relay setting, and the relay scheme

Keywords

electric current measurement; microcomputer applications; power engineering computing; power system control; power system protection; relay protection; voltage measurement; architecture organization; breaker status; current monitoring; electromechanical relays; microprocessor-based relays; modular relay architecture; monitoring functions; oscillography; outage analyses; outage analysis; power system control; power system protection; protective relaying designs; recloser status; relay scheme; relay setting; static relays; troubleshooting; voltage monitoring; Application software; Costs; Digital relays; Embedded software; Frequency; Hardware; Microprocessors; Protection; Protective relaying; Wiring;

fLanguage

English

Journal_Title

Computer Applications in Power, IEEE

Publisher

ieee

ISSN

0895-0156

Type

jour

DOI

10.1109/67.694933

Filename

694933