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Setting
Short Description
Selected
value
Comments
PHiHiLim
High High limit (physical value),
% of SBase
60
High alarm limit that is, extreme
overload alarm, hence it will be 415
MW.
PHiLim
High limit (physical value), in %
of SBase
50
High warning limit that is, overload
warning, hence it will be 371 MW.
PLowLim
Low limit (physical value), in % of
SBase
-50
Low warning limit -500 MW
PLowLowlLim
Low Low limit (physical value), in
% of SBase
-60
Low alarm limit -600 MW
PLimHyst
Hysteresis value in % of range
(common for all limits)
1
Set ±Δ Hysteresis 20 MW that is, 1%
of range (2000 MW)
Table 68:
Settings for calibration parameters
Setting
Short Description
Selected
value
Comments
IMagComp5
Magnitude factor to calibrate
current at 5% of In
0.00
IMagComp30
Magnitude factor to calibrate
current at 30% of In
0.00
IMagComp100
Magnitude factor to calibrate
current at 100% of In
0.00
VAmpComp5
Magnitude factor to calibrate
voltage at 5% of Vn
0.00
VMagComp30
Magnitude factor to calibrate
voltage at 30% of Vn
0.00
VMagComp100
Magnitude factor to calibrate
voltage at 100% of Vn
0.00
IAngComp5
Angle calibration for current at
5% of In
0.00
IAngComp30
Angle pre-calibration for current
at 30% of In
0.00
IAngComp100
Angle pre-calibration for current
at 100% of In
0.00
Measurement function application for a power transformer
SEMOD54481-61 v9
Single line diagram for this application is given in figure
.
Section 18
1MRK 504 163-UUS A
Monitoring
872
Transformer protection RET670 2.2 ANSI
Application manual
Summary of Contents for RELION RET670
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