Eaton Power Xpert Meter 4000, Быстрый старт

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3.7. Wiring
Wiring of the Power Xpert
®
Meter must follow a suitable wiring plan drawing. The phase
wiring plan refers to the drawings made for the specific application. It describes all
electrical connections between the meter and external equipment. A network wiring
diagram can also be helpful for networked systems. Specific wiring diagrams are useful
when creating the overall wiring plan drawing. Wiring diagrams for each system configura -
tion are addressed below.
WARNINGS
SHOCK HAZARDS:
IF THIS DEVICE IS BEING USED ON A SINGLE PHASE SYSTEM, WIRE TO PHASE A
AND NEUTRAL.
The following general considerations should be complied with during the wiring of the
Power Xpert
®
Meter.
All wiring must conform to applicable Federal, State and Local codes.
The wires to the terminal blocks must not be larger than AWG No. 10 (CT, VT, VX). Larger
wire will not connect properly to the terminal block.
Wiring diagrams contacts are shown in their de-energized position.
Because the Power Xpert
®
Meter monitors the neutral-to-ground voltage, the chassis of
the meter must be connected to ground. A good low impedance ground is essential for
proper functioning.
PT AND CT SECONDARY CIRCUITS ARE CAPABLE OF GENERATING DANGEROUS
VOLTAGES AND CURRENTS WITH THEIR PRIMARY CIRCUITS ENERGIZED, AND
COULD CAUSE PERSONAL INJURY AND OR DEATH.
The proper selection of any required current transformers or potential transformers is
critical to the proper and accurate functioning of the Power Xpert
®
Meter. Instrumentation
grade devices are required. Shorting blocks for CTs and a three-phase switch or cir-
cuit breaker for voltage are recommended near the equipment for ease of installa-
tion. If assistance with the selection process is desired, contact Power Quality Technical
Support representative.
Wiring Diagrams
Page 22
IB02601007E
www.eaton.com
3 Mounting and Wiring