User`s manual

4 RX3i Power Sync and Measurement System
GFK-2748
Quick Reference Guide
Warning
HIGH VOLTAGE; HIGH CURRENT
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.
Do not hot-swap the PSM module. (Power to the host controller must be off before
inserting or removing the module).
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
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 12mm (e.g.
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.
When this system is installed in an area designated as Class 1 Zone 2 in Europe, compliance with the ATEX Directive requires
an enclosure with a minimum rating of IP54.
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.
The Terminal Assembly must be securely installed on a rigid, conductive, 12 – 14 gauge steel panel using four user supplied
M4 - M5 or #8 - #10 SAE bolts. The Terminal Assembly should be mounted near the host controller rack containing the PSM
module, close enough to accommodate the 2 meter interface cables provided.
For detailed installation and power system connection instructions, refer to the PACSystems RX3i Power Sync and
Measurement Module User's Manual, GFK-2749.