Compact and versatile solution for utility and industrial power distribution systems

RED615 is a phase-segregated, two-end, line differential protection and control relay for protection, control, measurement and supervision of overhead line and cable feeders in utility and industrial power distribution networks, including radial, looped and meshed distribution networks, with or without distributed generation. RED615 is also ideal for line differential applications with an in-zone transformer. RED615 relays communicate between substations either over a fiber-optic link or a galvanic pilot wire connection.

Compact and versatile solution for utility and industrial power distribution systems with integration of protection, control, monitoring and supervision in one relay.

RED615 is a member of ABB’s Relion^® product family and part of its 615 protection and control series of relays.

• Feeder protection including communicating two-end line differential

Product benefits

• Selective unit protection as phase-segregated two-end line differential protection, either with sensors or conventional instrument transformers
   
• Ready-made standard configurations, including line differential communication, for fast and easy setup with tailoring capabilities
   
• 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

Product features

• Line differential protection with directional or non-directional overcurrent and earth-fault protection, voltage- and frequency-based protection and measurement functionality
   
• Line differential communication between substations either over a fiber-optic link or a galvanic pilot wire connection; ideal for line differential applications with an in-zone transformer
   
• Optional advanced and fast fault location of short circuits and earth faults
   
• Supports IEC 61850 Editions 1 and 2, including HSR and PRP, GOOSE messaging and IEC 61850-9-2 LE for less wiring and supervised communication
   
• IEEE 1588 V2 for high-accuracy time synchronization and maximum benefit of substation-level Ethernet communication
   
• Supports Modbus, DNP3 and IEC 60870-5-103 communication protocols