Name Type Description
AI2 GROUP SIGNAL Linear combination of input 2 signals from both SMAI blocks
AI3 GROUP SIGNAL Linear combination of input 3 signals from both SMAI blocks
AI4 GROUP SIGNAL Linear combination of input 4 signals from both SMAI blocks
21.10.4 Settings
SEMOD55995-1 v2
SEMOD130361-4 v2
Settings
DFTRefExtOut
and
DFTReference
shall be set to default value
InternalDFTRef
if no VT inputs are available.
PID-6428-SETTINGS v3
Table 991: 3PHSUM Non group settings (basic)
Name Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base Value
groups
SummationType Group1+Group2
Group1-Group2
Group2-Group1
-(Group1+Group2)
- - Group1+Group2 Summation type
DFTReference InternalDFTRef
DFTRefGrp1
External DFT ref
- - InternalDFTRef DFT reference
DFTRefExtOut InternalDFTRef
DFTRefGrp1
External DFT ref
- - InternalDFTRef DFT reference for external output
Table 992: 3PHSUM Non group settings (advanced)
Name Values (Range) Unit Step Default Description
FreqMeasMinVal 5 - 200 % 1 10 Amplitude limit for frequency calculation in
% of UBase
21.10.5 Operation principle
SEMOD55749-4 v6
Summation block 3 phase 3PHSUM receives the three-phase signals from Signal matrix for analog
inputs function (SMAI). The BLOCK input will reset all the outputs of the function to 0.
21.11 Global base values GBASVAL
GUID-2FDB0A2C-10FE-4954-B6E4-9DA2EEEF1668 v1
Section 21 1MRK 502 066-UUS B
Basic IED functions
1270
Technical manual
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