ABB REF620 Feeder Protection

Description The REF620 is a dedicated feeder management relay designed for protecting, controlling, measuring, and supervising utility and industrial power distribution systems. It is suitable for various network configurations, including radial, looped, and meshed networks, with or without distributed power generation. Specifications Protection Functions: Overcurrent, earth fault, phase discontinuity, and more Communication Protocols: IEC 61850 Editions 1 and 2, Modbus, DNP3, IEC 60870-5-103 Time Synchronization: IEEE 1588 V2 Precision Time Protocol Display: Large graphical display for customizable single-line diagrams (SLDs) Design: Withdrawable plug-in unit for easy installation and testing Features Extensive Protection and Control: Offers a wide range of protection and control functions for both incoming and outgoing feeders High Sensitivity and Selectivity: Advanced earth-fault protection with multifrequency admittance-based detection Scalability: Provides f