ABB Relion REM601 - Section 2 REF601;REJ601;REM601 overview; 2.1 Overview

1MDU07212-YN Rev. D Section 2
REF601/REJ601/REM601 overview
REF601 / REJ601 / REM601 7
Application Manual
Section 2 REF601/REJ601/REM601 overview
2.1 Overview
REF601/REJ601 is a dedicated feeder protection relay, intended for the protection
of utility substations and industrial power systems, in primary and secondary
distribution networks. Similarly REM601 is a dedicated motor protection relay,
intended for the protection of medium voltage and low voltage asynchronous
motors in manufacturing and process industry. REF601/REJ601/REM601 are the
member of ABB’s Relion
®
product family and part of its 605 series.
The relay provides an optimized composition of protection, monitoring and control
functionality in one unit, with the best performance usability in its class and is
based on ABB’s in-depth knowledge of protection and numerical technology.
The common features of REF601/REJ601/REM601 includes:
 Compact size and ease of use
 Standard 1A or 5A CT input for phase current measurement
 Alternate support for sensor input for phase current measurement
 Earth current measurement internally or externally through CBCT
 Local and remote control of circuit breaker
 Trip Circuit Supervision and relay internal supervision
 Lockout function
 100 event logs with date and time stamping
 Five analogue fault records
 Non-resettable trip counter
 On-line current measurements in primary value
 Comprehensive local HMI
 Universal auxiliary supply
 Optional MODBUS RTU or IEC 60870-5-103 communication
 Non-volatile memory for setting and fault records
 User selectable rated frequency 50 / 60 Hz
 Configurable binary inputs, outputs and alarm LEDs
 Multi language support for local HMI
 Two setting groups