•
general settings as shown in table
.
•
level supervision of active power as shown in table
.
•
calibration parameters as shown in table
.
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
Summary of Contents for REB650
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