ABB RET670 Applications Manual page 762

Section 3
IED application
756
Table 210: General settings parameters for the Measurement function
Setting Short Description
Operation Operation Off/On
PowAmpFact Amplitude factor to scale power
calculations
PowAngComp Angle compensation for phase
shift between measured I & U
Mode Selection of measured current
and voltage
k Low pass filter coefficient for
power measurement, V and I
VGenZeroDb Zero point clamping in % of
Ubase
IGenZeroDb Zero point clamping in % of Ibase
VBase Base setting for voltage level in
kV
IBase Base setting for current level in A
Table 211: Settings parameters for level supervision
Setting Short Description
PMin
Minimum value
PMax
Minimum value
PZeroDb Zero point clamping in 0.001% of
range
PRepTyp
Reporting type
PDbRepInt
Cycl: Report interval (s), Db: In
% of range, Int Db: In %s
PHiHiLim
High High limit (physical value)
PHiLim High limit (physical value)
Table continues on next page
Selected Comments
value
On Function must be
1.000 It can be used during commissioning
to achieve higher measurement
accuracy. Typically no scaling is
required
0.0 It can be used during commissioning
to achieve higher measurement
accuracy. Typically no angle
compensation is required. As well
here required direction of P & Q
measurement is towards protected
object (as per IED internal default
direction)
L1, L2, L3 All three phase-to-ground VT inputs
are available
0.00 Typically no additional filtering is
required
25 Set minimum voltage level to 25%.
Voltage below 25% will force S, P and
Q to zero.
3 Set minimum current level to 3%.
Current below 3% will force S, P and
Q to zero.
400.00 Set rated OHL phase-to-phase voltage
800 Set rated primary CT current used for
OHL
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 magnitude 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
1MRK504116-UUS C
On
Application manual