Network Determination - ABB RELION 630 Series Technical Manual

1MRS757256 F
7.8.4.1
PML630/Compact Load-Shedding Solution
Technical Manual
BLOCK
EXT_LS_TRG
FLS_CNT_RST
NW_SOURCE
NW_CB12
NW_CB13
NW_CB14
NW_CB15
NW_CB16
NW_CB23
NW_CB24
NW_CB25
NW_CB26
Network
determination
NW_CB34
NW_CB35
NW_CB36
NW_CB45
NW_CB46
NW_CB56
BB1
BB2
BB3
BB4
BB5
BB6
LS_RESET
LS_RESET_SN1
LS_RESET_SN2
LS_RESET_SN3
LS_RESET_SN4
MAN_SHD_SN1
MAN_SHD_SN2
MAN_SHD_SN3
MAN_SHD_SN4
MAN_PRIO_SN1
MAN_PRIO_SN2
MAN_PRIO_SN3
MAN_PRIO_SN4
MAN_POW_SN1
MAN_POW_SN2
MAN_POW_SN3
MAN_POW_SN4
MAN_LS_QVAL
GUID-9453B79D-3108-4025-964C-4123D497FDAB V1 EN
Figure 150: Functional module diagram
This function receives the load-shedding data for the power sources from NPMMXU
through the NW_SOURCE group input.
This function receives load-shedding data for the network circuit breakers from the
corresponding instances of NCBDCSWI through the NW_CB12, NW_CB13...
NW_CB56 group inputs.
This function also receives the load-shedding data from the different instances of
LDMMXU through the BB1...BB6 group inputs.

Network determination

This module receives the following data from NPMMXU function.
• Compensated circuit breaker status of power sources COMP_STS_SRC<n>
• Each power source busbar number (busbar 1...4)
Power management functions
LS blocking
and trigger
General
Load busbar
monitoring
Load
generation
balance
Subnetwork
priority
calculation
load shed
busbar
command
Manual LS
selection
Section 7
FLS_COUNTER
SRC1-8_SN_NO
CB12-56_SN_NO
BB1-6_SN_NO
LS_START
FLS_START
SLS_START
LS_OPERATE
logic
FLS_OPERATE
SLS_OPERATE
B_SET_CHANGE
SNW1
SNW2
SNW3
SNW4
PPLS1
Peer
PPLS2
logic
LS_OPR_BB1
LS_OPR_BB2
Load
LS_OPR_BB3
LS_OPR_BB4
LS_OPR_BB5
LS_OPR_BB6
MAN_LS_BEH
279