ABB REB670 Applications Manual page 415

Busbar protection 2.1 ansi, relion 670 series
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1MRK 505 337-UUS -
Application manual
Table 41:
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 (set in
Base setting for voltage level in
Global base)
kV
IBase (set in
Base setting for current level in A
Global base)
Table 42:
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
-100
Minimum expected load
100
Maximum expected load
3000
Set zero point clamping to 45 MW that
is, 3% of 200 MW
db
Select magnitude 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
Section 14
Monitoring
On
409

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