REF620 DIS0010 ABB Feeder Protection & Control Unit

Description

TheABB REF620is acompact feeder management relaydesigned toprotect and control incoming and outgoing feedersin medium-voltage substations. It combinesovercurrent, earth-fault, and advanced protection functionswithbreaker control, monitoring, and communication capabilities. As part of theRelion® family, the REF620 is optimized forIEC 61850 digital substations, offeringscalable functionalityandeasy integrationinto modern grid automation systems.