ABB Relion 670 Series Technical Reference Manual page 1009

1MRK505222-UUS C
Technical reference manual
IED
Preprocessing blocks
SMAI
TRM module
110 V 1 A 1 A
IEC08000072 V2 EN
Figure 491: Example of signal path for sampled analogue values from MU and
conventional CT/VT
Application
Preprocessing blocks
SMAI
MU1 MU2
OEM Module
CD
IEC61850-9-2LE
Ethernet Switch
IEC61850-9-2LE
ABB
1PPS
Merging
Unit
Combi
CT
Sensor
Conventional VT
Section 17
Station communication
Station Wide
GPS Clock
Splitter
Electrical-to-
Optical Converter
1PPS
IEC61850-9-2LE
ABB
1PPS
Merging
Unit
Combi
CT
Sensor
en08000072-2.vsd
1003