Table 518:
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 519:
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 520:
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
1MRK 502 048-UEN A
Section 17
Basic IED functions
647
Technical manual
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