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Chapter 2 Installation
Electrical Installation
28
PM135 Powermeter Series
This configuration provides accurate power measurements only if the voltages are balanced.
Figure
2-13 4-Wire Wye 2½-Element Connection Using 2 PTs, 3 CTs (Wiring Mode = 3LL3 or 3Ln3)
Figure
2-14 3-Wire 2½-Element Open Delta Connection Using 2 PTs, 3 CTs (Wiring Mode = 3OP3)