ABB RELION 650 Series Product Manual page 22

Transformer protection RET650 2.1 IEC
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.
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
Case size A B
(mm)/
(inches)
6U, 1/2 x 19" 265.9/ 223.7/
10.47 8.81
The H and K dimensions are defined by the 19" rack mounting kit.
Mounting alternatives
22
SEMOD158664-5 v3
SEMOD141113-4 v7
M14875-3 v9
M16727-3 v2
IP14539-1 v1
C D E F
242.1/ 255.8/ 205.7/ 190.5/
9.53 10.07 8.10 7.50
IEC04000448 V2 EN-US
Figure 4. Case without rear cover
IEC04000464 V2 EN-US
Figure 5. Case without rear cover with 19" rack mounting kit
G H J
203.7/ - 228.6/
8.02 9.00
• 19" rack mounting kit
• Flush mounting kit with cut-out dimensions:
1MRK 504 161-BEN C
K
-
IP14826-1 v1 M2152-3 v5
M15243-12 v8
M16079-3 v13
ABB