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Table 517:
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
15.10.5
Settings
Table 518:
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
Group2
Group1-Group2
Group2-Group1
-(Group2)
-
-
Group2
Summation type
DFTReference
InternalDFTRef
DFTRefGrp1
External DFT ref
-
-
InternalDFTRef
DFT reference
Table 519:
3PHSUM Non group settings (advanced)
Name
Values (Range)
Unit
Step
Default
Description
FreqMeasMinVal
5 - 200
%
1
10
Magnitude limit for frequency calculation in %
of Vbase
15.10.6
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.
15.11
Global base values GBASVAL
Section 15
1MRK 511 287-UUS A
Basic IED functions
618
Technical manual
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