Table 46:
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-ground VT inputs
are available
k
Low pass filter coefficient for
power measurement, V and I
0.00
Typically no additional filtering is
required
VGenZeroDb
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.
VBase (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 47:
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 magnitude 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
1MRK 511 401-UUS A
Section 17
Monitoring
Bay control REC670 2.2 ANSI
517
Application manual
Summary of Contents for Relion REC670
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