Voltage Protection and Control Relay REU615

Description

The voltage protection and control relay REU615 is available in two standard configurations, denoted A and B. Configuration A is preadapted for voltage and frequency-based protection schemes in utility and industrial power systems and distribution systems including networks with distributed power generation. The B configuration is designed for automatic voltage regulation of power transformers equipped with an on-load tap changer. Both configurations also feature additional CB control, measuring and supervising functions. REU615 is a member of ABB’s Relion® product family and part of its 615 protection and control product series. The 615 series relays are characterized by their compactness and withdrawable-unit design.

Re-engineered from the ground up, the 615 series has been designed to unleash the full potential of the IEC 61850 standard for communication and interoperability between substation automation devices.

Product benefits

Exclusively designed for automatic and manual voltage regulation, or alternatively for busbar under voltage and overvoltage supervision, load shedding and restoration
Ready-made standard configurations for fast and easy setup with tailoring capabilities
Withdrawable plug-in unit for swift installation and testing
Large graphical display showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI
Extensive life-cycle services

Product features

Extensive range of protection and control functionality for busbar voltage supervision, load shedding and restoration, including over frequency and under frequency protection for power generators and other AC equipment
Automatic voltage regulation of power transformers with a motor-driven on-load tap changer
Optional arc protection and high-speed outputs (not with automatic voltage regulator)
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