ABB RELION RED670 Series Product Manual page 54

Line differential protection RED670 2.2
Product version: 2.2
module has one RS485 communication port. The RS485 is a
balanced serial communication that can be used either in 2-
wire or 4-wire connections. A 2-wire connection uses the
same signal for RX and TX and is a multidrop communication
with no dedicated Master or slave. This variant requires
however a control of the output. The 4-wire connection has
separated signals for RX and TX multidrop communication
with a dedicated Master and the rest are slaves. No special
control signal is needed in this case.
GPS time synchronization module GTM
This module includes a GPS receiver used for time
synchronization. The GTM has one SMA contact for
connection to an antenna. It also includes an optical PPS ST-
connector output.
IRIG-B Time synchronizing module
The IRIG-B time synchronizing module is used for accurate
time synchronizing of the IED from a station clock.
Electrical (BNC) and optical connection (ST) for 0XX and 12X
IRIG-B support.
Transformer input module TRM
The transformer input module is used to galvanically separate
and adapt the secondary currents and voltages generated by
the measuring transformers. The module has twelve inputs in
different combinations of currents and voltage inputs.
Alternative connectors of Ring lug or Compression type can
be ordered.
High impedance resistor unit
The high impedance resistor unit, with resistors for pick-up
value setting and a voltage dependent resistor, is available in
a single phase unit and a three phase unit. Both are mounted
on a 1/1 19 inch apparatus plate with compression type
terminals.
Layout and dimensions
Dimensions
54
A
M14851-3 v5
SEMOD141113-4 v8
IEC08000163 V2 EN-US
M14875-3 v9
Figure 19. Case with rear cover
M16727-3 v2
F
IP14539-1 v1
IP14826-1 v1
IEC08000165 V2 EN-US
Figure 20. Case with rear cover and 19" rack mounting kit
1MRK 505 379-BEN C
E
B
K
G
H
IEC08000165-2-en.vsdx
M15243-4 v7
D
C
IEC08000163-2-en.vsd
J
ABB