ABB RELION 630 Series Technical Manual page 269

1MRS757256 F
PML630/Compact Load-Shedding Solution
Technical Manual
Configuration
check
SOURCE1
SOURCE2
SOURCE3
SOURCE4
SOURCE5
SOURCE6
SOURCE7
SOURCE8
SLS_TRG_INH
PPLS1_QVAL
PPLS1_DATA
PPLS2_DATA
PPLS2_QVAL
TEST
Test request
PPLS1_TEST
logic
PPLS2_TEST
GUID-F0D4405B-6063-4F23-899F-996568BA25D0 V1 EN
Figure 146: Functional module diagram
NPMMXU receives the inputs from power sources through the SOURCE1...
SOURCE8 group inputs. The SOURCE1 group input consists of load-shedding
information corresponding to the power source 1. Similarly, SOURCE2...SOURCE8
contain load-shedding information for the corresponding power sources.
This function receives the load-shedding data of adjacent electrical network area 1 and
adjacent electrical network area 2 through the PPLS1_DATA and PPLS2_DATA
inputs respectively. Table 304
input. The PPLS2_DATA input contains the identical information for adjacent
electrical network area 2.
Table 304: PPLS1_DATA bits information
Bits Bit Description
1 CB status of adjacent electrical network area 1
2 Power balance status of adjacent electrical network area 1
3 Must-shedding status of adjacent electrical network area 1
4 Error status of adjacent electrical network area 1
5...29 Spinning reserve or must shed of adjacent electrical network area 1
30 CB blocking status of adjacent electrical network area 1
31 Load-shedding blocking status of adjacent electrical network area 1
Power management functions
Source1/
source2 LS
data handle
General logic
Power
monitoring
Load shed
sharing
mode
Adjacent
area LS
data
handle
shows the information contained in the PPLS1_DATA
Section 7
CONFIG_ERROR
Binary to
integer
NW_SOURCE
Busbar logic
NW_PPLS1
NW_PPLS2
TEST_REQUEST
263