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

VBN: “2323 Volts”
VCN: “2323 Volts”
AVERAGE PHASE VOLTAGE: “2323 Volts”
SYSTEM FREQUENCY: “60.00 Hz”
In the A2 METERING DATA 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”
CHAPTER 6: ACTUAL VALUES
The following phasor diagram illustrates the system vector diagram where the VT
CONNECTION TYPE setting is selected as “Wye”. 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. The
phase-to-phase quantities are not shown in the A2 METERING DATA PHASORS menu
and the EnerVista 469 Setup software. However, they are shown on the following figure.
Vca
806563A1.CDR
Ib
Phase Rotation
Vcn
Vbn
FIGURE 6–10: Typical Phasor Diagram for Wye Connection
The EnerVista 469 Setup software displays the following screen:
6–24 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
Ic
Vbc
Van
Ia
Vab
System Voltages:
Van; Vab
Vbn; Vbc
Vcn; Vca
Measured Voltages
VA (G2 –G1)
VB (H1 – G1)
VC (H2 – G1)
Calculated Voltages
Vab = 3 × VA
Vbc = 3 × VB
Vca =
3 × VC
Displayed Voltages:
Van = VA
Vbn = VB
Vcn = VC
Vab =As Calculated
Vbc =As Calculated
Vca =As Calculated