User Supplied Equipment; Installation - GE PACSystems RX3i User Manual

4
GFK-2748C
When in hazardous locations, turn off power before replacing or wiring modules; and
DO NOT connect or disconnect equipment unless power has been switched off or the area is known
to be nonhazardous.
ATEX Zone 2
This product must be mounted in an enclosure certified in accordance with EN60079-15 for use in Zone 2, Group IIC and rated
IP54. The enclosure shall only be able to be opened with the use of a tool .
Quick Reference Guide
DO NOT TOUCH the connectors or wiring after powering up the PSM system. Hazardous voltages
exist, and death or injury may result.
The Terminal Assembly frame ground connection must always be installed and must be installed
before any other wiring is attached.
To reduce risk of electric shock or damage to the attached CTs, always open or disconnect all
voltage circuits and apply the shorting bar connections to the current inputs before installing or
servicing the connections to the Terminal Assembly.
Never disconnect the GRID 1 or GRID 2 field wiring while power is present. Personal injury or
equipment damage may result. Finger guards must be installed on the Terminal Assembly before
energizing the field wiring.

User Supplied Equipment

The user must supply the following components depending upon the application. This equipment includes:

5 Amp current transformers

Potential transformers for all installations

1 Amp fuses for each of the voltage leads connected to the Terminal Assembly.

1 Amp fuse for the common or return line for the voltage lead on the Terminal Assembly.

A CT shorting block for each current transformer (CT) connection used on the Terminal Assembly when used with
external CTs.

Installation

Enclosures
The Terminal Assembly and PSM module are considered open equipment (having live electrical parts that may be accessible
to users) and must be installed in a protective enclosure or incorporated into other assemblies manufactured to provide safety.
As a minimum, the enclosure or assemblies shall provide a degree of protection against solid objects up to 12 mm (for
example, fingers). For Non Hazardous environments, this equates to a NEMA/UL Type 1 enclosure or an IP20 rating providing
at least a pollution degree 2 environment.
The enclosure must be able to adequately dissipate the heat generated by all components mounted inside so that no
components overheat. Heat dissipation is also a factor in determining the need for enclosure cooling options such as fans and
air conditioning.
Installing the PSM Module
RX3i Power Sync and Measurement System
HIGH VOLTAGE; HIGH CURRENT