ABB RELION RET670 Applications Manual page 876

Section 18
Monitoring
870
Measurement function application for a 380kV OHL
Single line diagram for this application is given in figure 403:
380kV Busbar
800/5 A
380kV 120V
/
kV
3 3
P Q
380kV OHL
ANSI09000039 V1 EN-US
Figure 403: Single line diagram for 380kV OHL application
In order to monitor, supervise and calibrate the active and reactive power as indicated
in figure 403 it is necessary to do the following:
1. Set correctly CT and VT data and phase angle reference channel PhaseAngleRef
(see Section "Setting of the phase reference
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 66.
• level supervision of active power as shown in table 67.
• calibration parameters as shown in table 68.
IED
ANSI09000039-1-en.vsd
channel") using PCM600 for analog
Transformer protection RET670 2.2 ANSI
1MRK 504 163-UUS A
SEMOD54481-12 v11
Application manual