Owner's manual

Chapter 2 Installation Electrical I N S T A L L A T I O N
PM130 PLUS Powermeter Series 25
In case of a retrofit application where each external CT ends with two
wires:
1. Pass one wire through the meter CT
core.
2. Connect the wire to one of the meter termination screws.
3. Connect the second wire from the external CT to the
termination screw to close the loop.
Figure 2-8 Current Input Connection
Wiring Diagrams
For AC input ratings, see Technical Specifications in Appendix A for more
details.
Table 2 presents the available wiring configurations in the meter. For
more details, see Basic Meter Setup in Chapter 5.
Table 2: Wiring Configurations
Wiring Configuration
Setup Code
Figure
3-wire 2-element Delta direct connection using 2 CTs
3dir2
2-9
4-wire 3-element Wye direct connection using 3 CTs
4Ln3 or 4LL3
2-10
4-wire 3-element Wye connection using 3 PTs, 3 CTs
4Ln3 or 4LL3
2-11
3-wire 2-element Open Delta connection using 2 PTs, 2 CTs
3OP2
2-12
4-wire 2½-element Wye connection using 2 PTs, 3 CTs
3Ln3 or 3LL3
2-13
3-wire 2½-element Open Delta connection using 2 PTs, 3 CTs
3OP3
2-14
4-wire 3-element Delta direct connection using 3 CTs
4Ln3 or 4LL3
2-15
3-wire 2½-element Broken Delta connection using 2 PTs, 3 CTs
3bLn3 or 3bLL3
2-16