Description; Relay Functions - ABB REJ603 Product Manual

Self-powered feeder protection
REJ603
Product version: 3.0
1.

Description

REJ603 is a self-powered feeder protection
relay, intended for the protection of utility substa-
tions and industrial power systems, in secondary
distribution networks. REJ603 is a member of
ABB's Relion product family and part of its 605
®
series.
The feeder protection relay REJ603 is designed
to be a part of Ring Main Units (RMU) and
secondary distribution switchgears. The REJ603
relay is a self-powered numerical relay, which
receives power from the main current
transformers. This way REJ603 is an ideal
choice for installations where an auxiliary
supplies are not available and hence is suitable
for unmanned distribution substations having no
auxiliary supplies.
Relay has add-on optional function of remote trip
through binary input with selection of auxiliary
power version.
Table 1. Standard configurations
Description
Self-powered feeder protection
Table 2. Application configurations and supported functions
Functionality
Protections
Non-directional overcurrent protection, low-set stage
Non-directional overcurrent protection, high-set stage
Non-directional overcurrent protection, instantaneous stage
Earth-fault protection, low-set stage
Earth-fault protection, high-set stage
Three phase transformer inrush detector
Three-phase thermal protection for feeders, cables and distribution
transformers
Two setting group
External remote trip input with power supply
3
2.

Relay functions

The relay provides an optimized composition of
protection and monitoring functionality in one
unit, with the best performance usability in its
class and are based on ABB's in-depth
knowledge of protection and numerical
technology.
REJ603 offers pre-configured functionality which
facilitates easy and fast commissioning of
switchgear.
To emphasize the simplicity of relay's usage,
only application specific parameters needs to set
within the relay's intended area of application.
The relay also has short power up time which
ensures fast operation during switch on to fault.
The relay supports functions as indicated in
Table 2.
ANSI
51
50-1
50-2
51N
50N
68
49
1MDB07217-YN
Issued: 2017-11-21
Revision: E
Relay type
REJ603
IEC B
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