GE Power Management PQM Power Quality Meter 2-7
2 INSTALLATION 2.2 ELECTRICAL
2
The 2½ element 4 wire wye connection can be used for situations where cost or size restrictions limit the num-
ber of VTs to two. With this connection, Phase
V
bn
voltage is calculated using the two existing voltages. Select
the
S2 SYSTEM SETUP \ CURRENT/VOLTAGE CONFIGURATION \ VT WIRING: 4WIREWYE(2VTs)
setpoint.
This wiring configuration will only provide accurate power measurements if the voltages are
balanced.
Figure 2–5: WIRING DIAGRAM 4-WIRE WYE (2 VTs)
NOTE
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