4.13.3
Function block
IEC05000441-2-en.vsd
3PHSUM
BLOCK
DFTSPFC
G1AI3P*
G2AI3P*
AI3P
AI1
AI2
AI3
AI4
IEC05000441 V2 EN
Figure 41:
3PHSUM function block
4.13.4
Input and output signals
Table 52:
3PHSUM Input signals
Name
Type
Default
Description
BLOCK
BOOLEAN
0
Block
DFTSPFC
REAL
0
Number of samples per fundamental cycle used for
DFT calculation
G1AI3P
GROUP
SIGNAL
-
Group 1 analog input 3-phase group
G2AI3P
GROUP
SIGNAL
-
Group 2 analog input 3-phase group
Table 53:
3PHSUM Output signals
Name
Type
Description
AI3P
GROUP SIGNAL
Group analog input 3-phase group
AI1
GROUP SIGNAL
Group 1 analog input
AI2
GROUP SIGNAL
Group 2 analog input
AI3
GROUP SIGNAL
Group 3 analog input
AI4
GROUP SIGNAL
Group 4 analog input
4.13.5
Setting parameters
Settings
DFTRefExtOut
and
DFTReference
shall be set to default value
InternalDFTRef
if no VT inputs are available.
1MRK505222-UUS C
Section 4
Basic IED functions
115
Technical reference manual
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