ABB REB670 Series - Page 364

The available measured values of an IED are depending on the actual hardware
(TRM) and the logic configuration made in PCM600.
Measurement function application for a 400kV OHL
SEMOD54481-12 v11
Single line diagram for this application is given in figure 196:
400kV Busbar
400kV OHL
P Q
1000/1 A
IEC09000039-3-en.vsdx
IED
kV
3
1,0
/
3
400
IEC09000039-1-EN V3 EN-US
Figure 196: Single line diagram for 400kV OHL application
In order to monitor, supervise and calibrate the active and reactive power as indicated in
figure 196 it is necessary to do the following:
1. Set correctly CT and VT data and phase angle reference channel
PhaseAngleRef using
PCM600 for analog input channels
2. Connect, in PCM600, measurement function to three-phase CT and VT inputs
3. Set under General settings parameters for the Measurement function:
• general settings as shown in table
49.
• level supervision of active power as shown in table 50.
• calibration parameters as shown in table
51.
Table 49: 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
Table continues on next page
Section 14 1MRK 505 370-UEN D
Monitoring
358 Busbar protection REB670
Application manual