Ref601/Rej601 Overview; Overview; Product Version History - ABB REF601 Applications Manual

1MDU07212-YN Rev. A
Section 2
2.1
2.2
REF601 / REJ601
Application Manual

REF601/REJ601 overview

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. REF601/REJ601 is a 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 REF601/REJ601 features compact size and ease of use. The features include:
Standard 1A or 5A CT input for phase current measurement
Earth current measurement internally or externally through CBCT
Three-stage overcurrent protection
Two-stage earth-fault protection
Inrush detection for stability during transformer charging
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 communication
Non-volatile memory for setting and fault records
User selectable rated frequency 50 / 60 Hz
Configurable binary inputs and outputs

Product version history

Product version Release date
1.0 20.03.2009
1.0 SP1 21.08.2009
2.0 04.04.2012
2.1 28.09.2012
Section 2
REF601/REJ601 overview
Product History
Product released
Service Pack released
Version 2.0 released
Version 2.1 release with support
of conventional current
transformer
7