Description
REF620 is a dedicated feeder management relay for protection, control, measurement and supervision in utility and industrial power distribution systems, including radial, looped and meshed networks, with or without distributed power generation. Compact and versatile feeder protection relay solution with integration of protection, control, monitoring and supervision in one relay. REF620 is a member of ABB's Relion® family and part of its 620 protection and control product series. Scope Protection for medium voltage substation incoming and outgoing feeders
Key benefits
Extensive protection and control functionality, either with sensors or conventional instrument transformers
Functional scalability and extensive possibilities to easily tailor configurations to application-specific requirements
Withdrawable plug-in unit design for swift installation and testing
Large graphical display for showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI
Extensive life-cycle services
Key features
Wide range of protection and control functionality for incoming and outgoing feeders
Extensive earth-fault protection portfolio with unique multifrequency admittance-based protection for higher sensitivity and selectivity
Several optional functionality packages – advanced and fast fault location of short circuits and earth faults, interconnection protection for distributed power generation, capacitor bank, basic motor and arc protection
Supports native IEC 61850 Editions 1 and 2, including redundancy HSR and PRP, GOOSE messaging and IEC 61850-9-2 LE for less wiring and supervised communication
Supports Modbus, DNP3 and IEC 60870-5-103 communication protocols and for different time synchronization methods, including high-accuracy time synchronization via IEEE 1588 V2 Precision Time Protocol
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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