CTCT
ABB
Merging
Unit
Ethernet Switch
IED
Combi
Sensor
Conventional VT
IEC61850-9-2LE
IEC61850-9-2LE
Splitter
Electrical-to-
Optical Converter
1PPS
1PPS
110 V
1 A
1 A
IEC61850-8-1
Station Wide
SCADA System
Station Wide
GPS Clock
Other
Relays
IEC61850-8-1
en08000069-3.vsd
IEC08000069 V2 EN-US
Figure 83: Example of a station configuration with the IED receiving analog
values from both classical measuring transformers and merging
units.
15.3.2 Setting guidelines
GUID-29B296B3-6185-459F-B06F-8E7F0C6C9460 v4
Merging Units (MUs) have several settings on local HMI under:
1MRK 505 388-UEN B Section 15
Station communication
Busbar protection REB650 2.2 IEC 243
Application manual