Table 503: 3PHSUM Output signals
Name Type Description
AI3P GROUP SIGNAL Linear combination of two connected three phase
inputs
AI1 GROUP SIGNAL Linear combination of input 1 signals from both
SMAI blocks
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
17.10.5 Settings
Table 504: 3PHSUM Non group settings (basic)
Name Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 6 - 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
Table 505: 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
17.10.6 Operation principle
Summation block 3 phase 3PHSUM receives the three-phase signals from Signal
matrix for analog inputs function (SMAI). In the same way, the BLOCK input will
reset all the outputs of the function to 0.
17.11 Global base values GBASVAL
Section 17 1MRK 504 135-UEN A
Basic IED functions
590
Technical manual
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