GE PQMII Instruction Manual page 34

CHAPTER 2: INSTALLATION
The 2½ element 4-wire wye connection can be used for situations where cost or size
restrictions limit the number of VTs to two. With this connection, Phase Vbn voltage is
calculated using the two existing voltages. Select the
S2 SYSTEM SETUP CURRENT/VOLTAGE
setpoint.
CONFIGURATION VT WIRING: "4 WIRE WYE (2 VTs)"
This wiring configuration will only provide accurate power measurements if the voltages
are balanced.
2–6 PQMII POWER QUALITY METER – INSTRUCTION MANUAL