Triacta PowerHawk 6320, Руководство по установке

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Triacta Power Technologies PowerHawk 6320
8 Installation
Installing the reference voltage cable and power cable in a 120/240V
application
The PowerHawk has two voltage inputs. Auxiliary voltage is phase-independent and only
provides power to the internal circuits. The reference voltage (A, B, C, N) provides phase
voltages for power calculations, and the configuration depends on the type of service being
metered (single-phase, poly-phase, or three-phase).
The PowerHawk 6320 is shipped from the factory with shorting wires in the auxiliary power
inputs that power the unit from the reference voltage inputs. The following procedures explain
how to connect the reference voltage inputs for each of the service types. For instructions on
how to use the auxiliary power inputs see “Using the auxiliary power input” on page 11.
For a single- or poly-phase panel, use a 3-wire (red, black, white) 14 AWG (1.63 mm
2
) cable.
For a three-phase panel, use a 4-wire (red, black, blue, white) 14 AWG (1.63 mm
2
) cable.
Metallic, flexible armored cable (BX cable) is recommended for commercial installations.
As a safety precaution, the PowerHawk must be connected to its own breaker or switched
disconnect so it can be powered down separately by tripping a single breaker. The disconnect
device must located within easy reach of the meter operator, and must be labeled. For multiple
PowerHawk installations, the same disconnect can be used to power all PowerHawk units.
To install the power cable in a 120/240V application
WARNING: Ensure that the breaker you use to provide power to the PowerHawk is off
before connecting the power cable.
CAUTION: When connecting the power, ensure that there is a 1-inch loop of wire on each
lead inside the unit.
Note: If the breaker panel does not designate phase A and phase B feeds, make your own
designation and use it for the rest of the installation.
1. Connect the PowerHawk A, B, and N leads to the breaker or fused disconnect as follows:
WARNING: The A, B, wiring sequence between the PowerHawk and the panel must
match, or the measurement readings will be wrong.