ABB UniGear Digital, Commissioning And Testing Manual, Page: 15 / 98

ETHER NET NETWOR K VER IFICATIO N PROTECTIO N R ELAYS
1VLG5000 17 C 3
3 Ethernet network verification
The Ethernet network interconnects protection relays in a substation. As the GOOSE and Pro-
cess bus are used, to make the network functional is essential for most of the tests. The net-
work is set up and tested in the factory. Therefore, after switchgear assembly onsite, it is
only necessary to verify its functionality. Before starting any testing of the communication,
properly set the Ethernet settings in the protection relays, set the Ethernet switches and,
only then, interconnect the Ethernet network according to the project documentation.
It is supposed that the protection and control circuits are powered from the power supply.
3.1 Protection relays
Before starting any secondary testing of the protection relay functions, verify if the IP ad-
dresses, the network topology and time synchronization settings are in accordance with the
project documentation.
IP address setting
Check communication board setting according to documentation (for example Network
Overview diagram …).
On the protection relay LHMI go to -> Main Menu/Configuration/Communication/
Ethernet/Rear port(s)
– IP address = for example, 172.16.2.1
– Subnet mask = for example, 255.255.0.0
Figure 2: IP address setting for rear port(s)
Network topology setting
Check the network topology setting according to the documentation.
On the protection relay LHMI go to -> Main Menu/Configuration/Communication/
Ethernet/Redundancy/Redundant mode
– Redundancy mode = None
– Redundancy mode = HSR (High-availability Seamless Ring)
– Redundancy mode = PRP (Parallel Redundancy Protocol)