ABB RELION 670 Series Product Manual page 46

Transformer protection RET670 2.1 IEC
Examples of applications:
• Line differential protection
• Binary signal transfer
Galvanic RS485 serial communication module
The Galvanic RS485 communication module (RS485) is
used for DNP3.0 and IEC 60870-5-103 communication.
The 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.
The Pulse Per Second (PPS) input shall be used for
synchronizing when IEC 61850-9-2LE is used.
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
46
SEMOD158664-5 v3
A
M14851-3 v5
IEC08000163 V2 EN-US
Figure 13. Case with rear cover
SEMOD141113-4 v7
F
M14875-3 v9
M16727-3 v2
IEC08000165 V1 EN-US
Figure 14. Case with rear cover and 19" rack mounting kit
IP14539-1 v1
1MRK 504 155-BEN F
E
B
K
G
H
IP14826-1 v1 M15243-4 v6
D
C
IEC08000163-2-en.vsd
J
xx08000165.vsd
ABB