ABB RET670 Product Manual page 28

Transformer protection RET670
Pre-configured
Product version: 1.1
Galvanic RS485 serial communication
module
The galvanic RS485 serial communication
module is used as an alternative for DNP3.0
communication.
GPS time synchronization module GSM
This module includes the GPS receiver used
for time synchronization. The GPS has one
SMA contact for connection to an antenna.
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 transform the
Figure 8. 1/2 x 19" case with rear cover
28
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 termnals.
Layout and dimensions
Dimensions
A
C
B
D
xx05000003.vsd
IEC05000003 V1 EN
1MRK 504 091-BEN B
Issued: June 2010
F
E
ABB