Settings; Operation Principle; Global Base Values Gbasval - ABB RET650 Technical Manual

Section 17
Basic IED functions
17.10.5
Table 504: 3PHSUM Non group settings (basic)
Name
GlobalBaseSel
SummationType
DFTReference
Table 505: 3PHSUM Non group settings (advanced)
Name
FreqMeasMinVal
17.10.6
17.11
590
Table 503: 3PHSUM Output signals
Name
AI3P
AI1
AI2
AI3
AI4

Settings

Values (Range) Unit
1 - 6 -
Group1+Group2 -
Group1-Group2
Group2-Group1
-(Group1+Group2)
InternalDFTRef -
DFTRefGrp1
External DFT ref
Values (Range) Unit
5 - 200 %

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.

Global base values GBASVAL

Type Description
GROUP SIGNAL Linear combination of two connected three phase
inputs
GROUP SIGNAL Linear combination of input 1 signals from both
SMAI blocks
GROUP SIGNAL Linear combination of input 2 signals from both
SMAI blocks
GROUP SIGNAL Linear combination of input 3 signals from both
SMAI blocks
GROUP SIGNAL Linear combination of input 4 signals from both
SMAI blocks
Step Default
1 1
- Group1+Group2
- InternalDFTRef
Step Default
1 10
1MRK 504 135-UEN A
Description
Selection of one of the Global Base Value
groups
Summation type
DFT reference
Description
Amplitude limit for frequency calculation in
% of Ubase
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