Chapter 2 Installation
Electrical Installation
22
Series PM174 Powermeters
Figure 2-20 3-Wire 2-element Open Delta Connection Using 2 PTs, 2 CTs.
Wiring Mode = 3OP2
Figure 2-21 4-Wire Wye 2½-Element Connection Using 2 PTs, 3 CTs.
Wiring Mode = 3LL3 or 3Ln3