6–24 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUALCHAPTER 6: ACTUAL VALUESVBN: “2323 Volts”VCN: “2323 Volts”AVERAGE PHASE VOLTAGE: “2323 Volts”SYSTEM FREQUENCY: “60.00 Hz”In the A2 METERING DATA ZV PHASORS menu:VA PHASOR: “95.8% at 0° Lag”VB PHASOR: “95.8% at 120° Lag”VC PHASOR: “95.8% at 240° Lag”IA PHASOR: “100.0% at 18° Lag”IB PHASOR: “100.0% at 138° Lag”IC PHASOR: “100.0% at 258° Lag”The following phasor diagram illustrates the system vector diagram where the VTCONNECTION TYPE setting is selected as “Wye”. By definition, power factor is the cosine ofthe angle between the phase to neutral voltages and the corresponding phase current. Inthis example, 18.2° is the angle between Van and Ia, Vbn and Ib, and Vcn and Ic. Thephase-to-phase quantities are not shown in the A2 METERING DATA ZV PHASORS menuand the EnerVista 469 Setup software. However, they are shown on the following figure.FIGURE 6–10: Typical Phasor Diagram for Wye ConnectionThe EnerVista 469 Setup software displays the following screen:806563A1.CDRIaVanPhase RotationVabVcnVbnIcVcaIbVbcSystem Voltages:Van; VabVbn; VbcVcn; VcaVC (H2 – G1)VB (H1 – G1)VA (G2 – G1)Measured VoltagesCalculated VoltagesDisplayed Voltages:Van = VAVbn = VBVcn = VCVab = As CalculatedVbc = As CalculatedVca = As CalculatedVA3Vab ×=VB3Vbc ×=VC3Vca ×=
