Phasors - GE MOTOR MANAGEMENT RELAY 469 Instruction Manual

8 469 PC SOFTWARE
The 469PC software can be used to view the phasor diagram of three phase currents and voltages. The pha-
sors are for:
• Phase Voltages A, B, and C
• Phase Currents A, B, and C
1. With 469PC running and the communications established, open the Metering Data window by selecting
the Actual > Metering Data menu item then clicking the Phasors tab. The phasor diagram and the values
of voltage phasors, and current phasors are displayed.
Longer arrows are the voltage phasors, shorter arrows are the current phasors.
NOTE
2. Va and Ia are the references (i.e. zero degree phase). The lagging angle is clockwise.
VOLTAGE LEVEL
Displays the value and
the angle of the voltage

phasors

CURRENT LEVEL
Displays the value and angle
of the current phasors
GE Power Management
CURRENT PHASOR
Short arrow
Figure 8–11: PHASORS
469 Motor Management Relay
8.3 USING 469PC
8.3.9 PHASORS
VOLTAGE PHASOR
Long arrow
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