CET Electric Technology
15
Figure 2-13 Panel Cutout (LED)
2.4 Wiring connections
PMC-D726M can satisfy both Wye and Delta three phase power systems. Please read this section
carefully before installation and choose the correct wiring method for your power system. The following
Wiring Modes are supported:
3-Phase 4-Wire (3P4W) Wye Direct Connection with 3CTs
3-Phase 4-Wire (3P4W) Wye Direct Connection with 2CTs
3-Phase 3-Wire (3P3W) open Delta with 2PTs and 3CTs.
3-Phase 3-Wire (3P3W) open Delta with 2PTs and 2CTs
2.4.1 3-Phase 4-Wire (3P4W) Wye Direct Connection with 3CTs
Please consult the serial number label to ensure that the system phase voltage is less than or equal to
the meter’s voltage input specification.
Set the Wiring Mode to Wye.
Caution
Under no circumstances should the PT secondary be shorted.
Under no circumstances should the CT secondary be open when the CT primary is
energized. CT shorting blocks should be installed to allow for easy maintenance.