Load-Shedding Application Modes - ABB Relion 630 Series Operation Manual

Section 3
IED Overview
3.2.4.4
24
IED set to
test mode
from LHMI
61850 Stack
Operation On/ Off
Load-shedding
Block
GUID-3601B5EB-FBBC-4144-B082-67903DBDAEDC V2 EN
Figure 8: IED Test mode handling sequence
Table 12: Semantics of IED LN0 behaviour, based on modes
IED mode Functionality mode
(LSCACLS mode)
On On
Test On
Test Blocked
Test Off

Load-shedding application modes

The IED supports different load-shedding application modes.
• On
• Off
• Blocked
The load shed AFL functions support the On, Off and Blocked modes for fast load-
shedding and slow load-shedding. If the LSCACLS function block Operation is set to
AFL
Fast
Blocked
LNBeh
On
Test
Test+Blocked
Off
PML630/Compact Load-Shedding Solution
1MRS757183 F
LLN 0
Mod
stVal=3
Q=0
Mod
stVal=3
Q= 000000000010
FLS
Mod
stVal=1
Q=0
Mod
stVal = 3/4/5
Q= 000000000010
SLLS
Mod
stVal =1
Q=0
Mod
stVal = 3/4/5
Q= 000000000010
LNBeh value
1
3
4
5
Operation Manual