1. Set correctly all CT and VT and phase angle reference channel
PhaseAngleRef
data using
PCM600 for analog input channels
2. Connect, in PCM600, measurement function to LV side CT & VT inputs
3. Set the setting parameters for relevant Measurement function as shown in the following
table
52:
Table 52: General settings parameters for the Measurement function
Setting Short description Selected
value
Comment
Operation
Operation
Off
/
On On
Function must be
On
PowAmpFact
Amplitude factor to scale
power calculations
1.000 Typically no scaling is required
PowAngComp
Angle compensation for phase
shift between measured I & U
180.0 Typically no angle compensation is required.
However here the required direction of P & Q
measurement is towards busbar (Not per IED
internal default direction). Therefore angle
compensation have to be used in order to get
measurements in aliment with the required
direction.
Mode
Selection of measured current
and voltage
L1L2 Only UL1L2 phase-to-phase voltage is
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%
IGenZeroDb Zero point clamping in % of
Ibase
3 Set minimum current level to 3%
UBase (set in
Global base)
Base setting for voltage level
in kV
35.00 Set LV side rated phase-to-phase voltage
IBase (set in
Global base)
Base setting for current level
in A
495 Set transformer LV winding rated current
SBase (set in
Global base)
Base setting for power in MVA 31.5 Set based on rated power
Measurement function application for a generator
SEMOD54481-110 v8
Single line diagram for this application is given in figure
198.
1MRK 505 370-UEN D Section 14
Monitoring
Busbar protection REB670 361
Application manual
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