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Subnetwork
Slow LS
enable
calculation
SLS_ENA_BB1
BB1_SN_NO
Subnetwork
Slow LS
enable
calculation
SLS_ENA_BB4
BB4_SN_NO
OR
OR
OR
OR
SLS_ENA_SNW1
SLS_ENA_SNW2
SLS_ENA_SNW3
SLS_ENA_SNW4
GUID-78B5B261-143D-4EB4-AB48-1A66921D0716 V1 EN
Figure 155:
Calculation of slow load-shed enable signal for subnetworks
The module receives the must shed status,
RCV_MS_STS1
and
RCV_MS_STS2
,
from NPMMXU function corresponding to adjacent electrical areas connected
through power source 1 and power source 2. If must shed status gets active, extended
load-shed trigger is generated corresponding to the subnetwork of the power source 1
or power source 2.
shows extended load-shed triggers for different subnetworks for various
conditions.
Subnetwork
extended LS
trigger
calculation
RCV_MS_STS1
SRC1_SN_NO
Subnetwork
extended LS
trigger
calculation
RCV_MS_STS2
SRC2_SN_NO
LS_BLOCK3
LS_BLOCK4
OR
OR
OR
OR
AND
AND
AND
AND
LS_BLOCK2
LS_BLOCK1
EXTD_TRG_SNW1
EXTD_TRG_SNW2
EXTD_TRG_SNW3
EXTD_TRG_SNW4
0
1
0
1
GUID-0806BC16-B266-4415-A20C-11AE4C17CF68 V1 EN
Figure 156:
Calculation of extended load-shed triggers for subnetworks
1MRS757256 F
Section 7
Power management functions
PML630/Compact Load-Shedding Solution
285
Technical Manual
Summary of Contents for Relion 630 Series
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