ABB Relion 630 Series Operation Manual page 88

Section 4
Using the HMI
80
and if GR1 and GR2 power sources are configured for grid
connectivity with the adjacent electrical network (area).
For more information, see the engineering manual.
GUID-38463B24-5777-4D10-B133-76E34F451452 V2 EN
Figure 73: Substation structure
3. Click any one of the subnetworks under Load shedding under the IED in the
substation structure to view the corresponding subnetwork display.
• In cPMS - LS Configuration A, there is no adjacent electrical network
(area) and hence Subnetwork 1...4 have identical displays.
• In cPMS - LS Configuration B, where interconnected adjacent electrical
network (area) is present and monitored by the respective IEDs,
Subnetwork 1 and 2 displays are identical and contain additional
information related to the peer station (area) Power balance and Must be
shed power. However, Subnetwork 3 and 4 displays do not show this
additional information.
1MRS757183 F
PML630/Compact Load-Shedding Solution
Operation Manual