• general settings as shown in table 24.
• level supervision of active power as shown in table 25.
• calibration parameters as shown in table 26.
Table 24: General settings parameters for the Measurement function
Setting
Short Description Selected
value
Comments
Operation Operation Off/On On Function must be
On
PowAmpFact Amplitude factor to scale power
calculations
1.000 It can be used during
commissioning to achieve higher
measurement accuracy.
Typically no scaling is required
PowAngComp
Angle compensation for phase
shift between measured I & U
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)
Mode Selection of measured current
and voltage
L1, L2, L3 All three phase-to-earth VT
inputs are available
k Low pass filter coefficient for
power measurement, U and I
0.00 Typically no additional filtering is
required
UGenZeroDb Zero point clamping in % of
Ubase
25 Set minimum voltage level to
25%. Voltage below 25% will
force S, P and Q to zero.
IGenZeroDb
Zero point clamping in % of
Ibase
3 Set minimum current level to 3%.
Current below 3% will force S, P
and Q to zero.
UBase (set in
Global base)
Base setting for voltage level in
kV
400.00 Set rated OHL phase-to-phase
voltage
IBase (set in
Global base)
Base setting for current level in
A
1000 Set rated primary CT current
used for OHL
SBase (set in
Global base)
Base Setting for power base in
MVA
1000 Set based on rated Power
Table 25: Settings parameters for level supervision
Setting
Short Description Selected
value
Comments
PMin
Minimum value -100 Minimum expected load
PMax
Minimum value 100 Maximum expected load
PZeroDb
Zero point clamping in 0.001% of
range
3000 Set zero point clamping to 60
MW that is, 3% of 200 MW
PRepTyp
Reporting type db Select amplitude deadband
supervision
PDbRepInt
Cycl: Report interval (s), Db: In
0.001% of range, Int Db: In
0.001%s
2000
Set ±Δdb=40 MW that is, 2%
(larger changes than 40 MW will
be reported)
Table continues on next page
Section 12 1MRK 505 388-UEN B
Monitoring
204 Busbar protection REB650 2.2 IEC
Application manual
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