Pre-Energization Check; General - Toshiba JK Series Instruction Manual

Basic Installation and Operation Guide

PRE-ENERGIZATION CHECK

General

AFTER INSTALLATION, BUT BEFORE ENERGIZING THE CONTROLLER for the first time, follow the procedure
below to verify that the equipment is properly installed and functional.
There is a rating data label (Fig. 15) on the inside of each medium
voltage compartment door. Verify that the controller ratings properly
match the system data by checking the following:
1. Verify agreement of load current (e.g. motor full load &
locked rotor current with nameplate).
2. Verify that system voltage, number of phases, and
frequency matches controller rating.
3. Verify that available short circuit current of power
system is less than rated short circuit capacity of
controller.
Check connections - Although the equipment and devices have
been completely tested at the factory, a final field check should be
made that all electrical wiring and bus bar connections are correct
and have not become loose in transportation (Fig. 16). Refer to the
MAINTENANCE Section for electrical joint specification.
All blocks or other temporary braces used for shipment must be
removed.
Before closing the enclosure, all metal chips, scrap wire, and
other debris left over from installation must be cleaned out. If
there is an appreciable accumulation of dust or dirt, the
enclosure should be cleaned by using a brush, vacuum
cleaner, or clean, lint free brush.
The integrity of all bus bar supports must be checked to
confirm they are secured and without damage.
Care should be exercised that when covers are installed and
doors closed, no wires are pinched, and that all enclosure
parts are properly aligned and tightened.
A supply of spare parts, fuses, etc. should be established.
Instruction manuals and diagrams should be collected and filed.
TOSHIBA
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
JK 720 Series Controllers
Fig. 15 Data Label on Controller
Fig. 16 Check Connections
10