ABB RELION 670 Series Applications Manual page 357

1MRK 505 337-UUS A
800/5 A
380kV 120V
/
3
ANSI09000039 V1 EN-US
Figure 176: Single line diagram for 380kV OHL application
In order to monitor, supervise and calibrate the active and reactive power as indicated in figure
176 it is necessary to do the following:
1. Set correctly CT and VT data and phase angle reference channel
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:
•
•
•
Table 43: General settings parameters for the Measurement function
Setting
Operation
PowAmpFact
PowAngComp
Mode
k
VGenZeroDb
Table continues on next page
Application manual
380kV Busbar
kV
3
P Q
380kV OHL
general settings as shown in table 43.
level supervision of active power as shown in table 44.
calibration parameters as shown in table 45.
Short Description
Operation Off/On
Amplitude factor to scale
power calculations
Angle compensation for phase
shift between measured I & U
Selection of measured current
and voltage
Low pass filter coefficient for
power measurement, V and I
Zero point clamping in % of
Ubase
IED
ANSI09000039-1-en.vsd
Selected Comments
value
On Function must be
1.000 It can be used during commissioning to achieve
higher measurement accuracy. Typically no scaling
is required
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)
L1, L2, L3 All three phase-to-ground VT inputs are available
0.00 Typically no additional filtering is required
25 Set minimum voltage level to 25%. Voltage below
25% will force S, P and Q to zero.
Section 14
Monitoring
PhaseAngleRef using PCM600
On
351