Access Control; Local Hmi; Inputs And Outputs; Application Warning - ABB REJ603 Product Manual

Self-powered feeder protection
REJ603
Product version: 3.0
9.

Access control

To protect the relay from unauthorized access
and to maintain the integrity of information, the
relay is enabled with a three-level, role-based
user authentication system password for the
operator, engineer and administrator
password is alpha-numeric based and is
administrator programmable for three levels of
hierarchy.

10. Local HMI

Local HMI of relay contains LCD display, LED
indicators and navigation keys. The
measurement, events, setting can be viewed in
display.
Phase as well earth fault trip indication is
provided through hand-reset electromechanical
flag which ensures availability of relay operation
indication even in absence of primary CT
current.
The relay has additionally two LED indications
on LHMI, the green color 'ready' LED is provided
to indicate the relay in operation when minimum
current required for operation is available and for
indicating internal relay failure. The yellow
colored 'start' LED is provided to indicate the
protection pick up.

11. Inputs and outputs

The relay is equipped with four 1A or 5A analog
current inputs, 3 for phase current and 1 for
earth current measurements.
Table 4. Input/output overview
Relay type
REJ603
6
The relay has optional one binary input. The
binary input is configured for remote (external)
trip and protection blocking.
The relay has a one capacitor discharge impulse
output (24V DC, 100 mJ) for tripping circuit
levels. The
breaker with sensitive trip coil. Additionally two
bi-stable signal outputs are available for
protection start / trip and remote trip indications
to an external system.
The bi-stable output contacts are pre-configured
according to default configuration, however can
be easily reconfigured for protection start,
protection trip and remote trip indication by using
the LHMI menu.

12. Application warning

In case the relay REJ603 (optional functionality
with external power supply) is supplied with UPS
step-wave or square-wave, an interposing
transformer is needed to keep the supply voltage
(peak voltage) below the upper limit of the relay.
These are the recommended transformer
characteristics:
Nominal Power: 7.5 VA

Secondary voltage: in the range

30...150 V AC
Analog input Binary inputs
CT BI
4 1 (optional)
1MDB07217-YN
Issued: 2017-011-21
Revision: E
Binary outputs
BO
1 (Impulse trip)
2 (Bi-stable signaling)
ABB