Measurement Function Application For A Power Transformer - ABB Relion 650 Series Applications Manual

Section 15
Monitoring
Table 31:
Setting
PMin
PMax
PZeroDb
PRepTyp
PDbRepInt
PHiHiLim
PHiLim
PLowLim
PLowLowlLim
PLimHyst
Table 32:
Setting
IAmpComp5
IAmpComp30
IAmpComp100
UAmpComp5
UAmpComp30
UAmpComp100
IAngComp5
IAngComp30
IAngComp100
15.4.4.2

Measurement function application for a power transformer

Single line diagram for this application is given in figure 109.
224
Settings parameters for level supervision
Short Description
Minimum value
Minimum value
Zero point clamping in 0.001%
of range
Reporting type
Cycl: Report interval (s), Db: In
% of range, Int Db: In %s
High High limit (physical value)
High limit (physical value)
Low limit (physical value)
Low Low limit (physical value)
Hysteresis value in % of range
(common for all limits)
Settings for calibration parameters
Short Description
Amplitude factor to calibrate
current at 5% of Ir
Amplitude factor to calibrate
current at 30% of Ir
Amplitude factor to calibrate
current at 100% of Ir
Amplitude factor to calibrate
voltage at 5% of Ur
Amplitude factor to calibrate
voltage at 30% of Ur
Amplitude factor to calibrate
voltage at 100% of Ur
Angle calibration for current at
5% of Ir
Angle pre-calibration for
current at 30% of Ir
Angle pre-calibration for
current at 100% of Ir
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Selected Comments
value
-750 Minimum expected load
750 Maximum expected load
3000 Set zero point clamping to 45 MW that is, 3%
of 1500 MW
db Select amplitude deadband supervision
2 Set ±Δdb=30 MW that is, 2% (larger changes
than 30 MW will be reported)
600 High alarm limit that is, extreme overload
alarm
500 High warning limit that is, overload warning
-800 Low warning limit. Not active
-800 Low alarm limit. Not active
2 Set ±Δ Hysteresis MW that is, 2%
Selected Comments
value
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1MRK 504 124-UEN B
SEMOD54481-61 v6
Transformer protection RET650
Application manual