Hobart GPU-600 Series, Operation And Maintenance Manual

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OM-2244 / Operation and Maintenance Manual
DCS-600/ Series 500082/ Solid State Transformer-Rectifiers
December 15, 2014 Chapter 1-2
Page 1
Section 2 Preparation for Use, Storage, or Shipping
1) Receipt and Inspection of Equipment
The GPU has been thoroughly inspected and tested at the factory and prepared for shipment in
accordance with standard industrial practices for safe shipment. Upon receiving this equipment, inspect it
as follows.
a) Visually inspect the shipping crate for damage. If any damage is detected, request that the carrier
agent inspect the shipment and note the damage on the delivery receipt. This is for your protection.
b) If there is no obvious damage to the shipping crate, unpack the unit as follows:
2) Unpacking the Unit
a) Remove the crate. Take care to avoid damage to the equipment if bars, hammers, etc. are used in
unpacking. Remove all unused hardware from the unit.
b) Visually inspect the unit for evidence of external damage such as damaged sheet metal, scratches,
dents, etc. Check also for loose connections and components. If the equipment has been damaged
in transit, file a claim for damage at once. If you require assistance with a damage claim, furnish ITW
GSE with full information about the claim.
NOTE: Save the shipping container until the unit has been put into service and determined to be
operating correctly.
3) Operating Location Selection
For best operating characteristics and longest unit life, select an installation site that is not exposed to
high humidity, dust, high ambient temperature, flooding, or corrosive agents. Moisture can condense on
electrical components, causing corrosion or shorting circuits. Dirt on components helps retain this
moisture in addition to providing a conducting material.
Adequate air circulation is needed at all times in order to assure proper operation. Provide a minimum of
12 inches (305mm) of free air space at both the front and rear of the unit. Make sure that the ventilator
openings are not obstructed. The unit should not be installed on a grade greater than 10°.
4) Input Cable Selection
Figure 1 shows input cable size requirements for GPU units covered by this manual. This information is
from the U.S. National Electrical Code ANSI/NFPA 70. Install this equipment per the latest edition,
available from the National Fire Protection Association (www.nfpa.org). The customer must also furnish a
suitable means to safely disconnect power from the GPU.
The GPU has a large inrush current when it is first turned on, much like a large electric motor. Therefore,
to avoid falsely tripping the supply line circuit breaker or fuse, the circuit breaker or fuse should be the
type used with electric motors.
Any problems consult our Service Department