Testing and Maintenance of Protective Relays
The performance of protective relay is affected by maintenance. Basic requirements of sensitivity, selectivity, reliability and stability can be satisfied only if the maintenance is excellent.
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A comprehensive testing program should simulate fault and normal operating conditions of the relay. Acceptance testing, commissioning, and startup will include control power tests, current transformer
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FIST 3-8-March18-2010
The protection system as defined in this volume includes ―protective relays, associated communications systems, voltage and current sensing devices, station batteries, and direct current