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PLSED309039EN PM1000 Series Power Meters

08/2010 Chapter 5 – Installation

Phase Labels

The phase labels shown on the display are programmable via the power

meters front panel PROG menu. You can setup the meter to display phase

labels convenient to your practice. The choices available are: 123 (factory

set), RYB, RST, PQR, ABC.

Connection Diagrams

Choose the diagram below that best describes your application. You must

ensure that the CT phase and corresponding PT phase are identical and

that the CT polarity is correct. Follow the outlined procedure to verify correct

connection.

Connection Diagram Symbols

Table 5-6: Connection diagrams symbols

Symbol

Description

Fuse

Current transformer

Shorting block

Potential transformer

3-phase 4-wire WYE connection with three CTs and three PTs

Direct voltage connection for the input voltages L-L up to 480 VAC.

Figure 5-3: 3-phase 4-wire WYE connection

NOTE:

Make sure WYE/Star is programmed in the power meter PROG menu- Setup.

For High – leg (US connection)

L1 – N = 120 V

L2 – N = 208 V

L3 – N = 120 V

0.25 A

Aux supply

(Control Power)

44 to 277 VAC/DC

Communication

(PM1200)

LOAD

LINE

L1 L2 L3 N

Use PT, if

VAC LL 481 V

80 t o 480 Vac LL

VER:03.04.00

D- D -IERS 485- TH M

Op t i on Li st :

RS 485

mA to 6A

COYYWWDXXXX Acc Cl: 1.0

44 to 277 V 50/60 Hz <5 VA

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 80 81

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