Multilin 469 Motor Management Relay ... - GE Digital Energy

CHAPTER 6: ACTUAL VALUES
The EnerVista 469 Setup software displays the following screen for A2 METERING DATA
PHASORS values:
Pressing the “View” button displays the following screen:
The following phasor diagram illustrates the vector diagram of our example. By definition,
power factor is the cosine of the angle between the phase to neutral voltages and the
corresponding phase current. In this example, 18.2° is the angle between Van and Ia, Vbn
and Ib, and Vcn and Ic. Since the relay is measuring phase-phase quantities, and Vab is the
reference phasor, the angle displayed by the relay takes into consideration the 30° angle
between phase-phase and phase-neutral voltages.
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 6–21