Table 328:
Bits information for LS_OPR_BB1
Bit No
Bit description
1
Load-shed operate sheddable load 1
2
Load-shed operate sheddable load 2
3
Load-shed operate sheddable load 3
4
Load-shed operate sheddable load 4
5
Load-shed operate sheddable load 5
6
Load-shed operate sheddable load 6
7
Load-shed operate sheddable load 7
8
Load-shed operate sheddable load 8
9
Load-shed operate sheddable load 9
10
Load-shed operate sheddable load 10
Bits information for
LS_OPR_BB2...LS_OPR_BB6
are identical
to
LS_OPR_BB1
.
These outputs are reported to the corresponding instances of the load-shedding trip
command function LSPTRC.
The load-shedding operation command for the busbar is a hold value. The load-
shedding operation information for the busbars can be reset by the
RESET_SN1
,
RESET_SN2
,
RESET_SN3
or
RESET_SN4
inputs for the respective subnetworks.
The load-shedding operation commands for all six busbars can be reset by the
RESET
input.
If the subnetwork number of a busbar is changed, the load-shedding
operation command for the respective busbar is reset.
shows the signals provided to respective SNWRCLS functions through
group output
SNW1
,
SNW2
,
SNW3
and
SNW4
.
Table 329:
The group signal for SNW
z
Signal description
Group signal description for SNW<z>
Cumulative shed power for priority p = 1,2,3,..19
CUM_LOD_PR
p
z
Available power of the subnetwork
AVA_POWER
z
Running load of the subnetwork
RUNNING_LOAD
z
Total sheddable power of the subnetwork
SHDABL_LOAD
z
Power balance of the subnetwork
POWER_BAL
z
Total load inhibited by system in the subnetwork
TOT_INH_SYS
z
Total load inhibited by operator in the subnetwork TOT_INH_OPR
z
Table continues on next page
1MRS757256 F
Section 7
Power management functions
PML630/Compact Load-Shedding Solution
295
Technical Manual
Summary of Contents for Relion 630 Series
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