Ref601/Rej601 Overview; Overview - ABB REF601 Applications Manual

1MDU07212-YN Rev. C
Section 2
2.1
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
·
Alternate support for sensor 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
·
Additional Thermal overload protection, Negative sequence overcurrent, phase
discontinuity protection and circuit breaker failure protection
·
Multi shot Auto recloser functionality for overhead line
·
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 / IEC 60870-5-103 communication
·
Non-volatile memory for setting and fault records
·
User selectable rated frequency 50 / 60 Hz
·
Configurable binary inputs and outputs and LED
·
Multi language support for local HMI
·
Two setting groups
Section 2
REF601/REJ601 overview
7