ABB RELION 670 Series Applications Manual page 649

Transformer protection
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1MRK 504 152-UEN B
Table 62: Settings parameters for level supervision
Setting
PMin
PMax
PZeroDb
PRepTyp
PDbRepInt
PHiHiLim
PHiLim
PLowLim
PLowLowlLim
PLimHyst
Table 63: Settings for calibration parameters
Setting
IAmpComp5
IAmpComp30
IAmpComp100
UAmpComp5
UAmpComp30
UAmpComp100
IAngComp5
IAngComp30
IAngComp100
Measurement function application for a power transformer
Single line diagram for this application is given in figure 373.
Application manual
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)
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
Selected
Comments
value
-100
Minimum expected load
100
Maximum expected load
3000
Set zero point clamping to 45 MW that is, 3%
of 200 MW
db
Select amplitude deadband supervision
2
Set ±Δdb=30 MW that is, 2% (larger changes
than 30 MW will be reported)
60
High alarm limit that is, extreme overload
alarm
50
High warning limit that is, overload warning
-50
Low warning limit. Not active
-60
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
Section 17
Monitoring
SEMOD54481-61 v7
643

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