Section 3 Receiving, Handling And Storage; General; Receiving; Handling - Eaton 50VCPW-ND250 Installation, Operation And Maintenance Manual

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SECTION 3: RECEIVING, HANDLING AND
STORAGE

3-1 GENERAL

Type VCP-W Vacuum Circuit Breaker Elements are
subjected to complete factory production tests and
inspection before being packed. They are shipped in
packages designed to provide maximum protection to
the equipment during shipment and storage and at the
same time to provide convenient handling. Tools, such
as the maintenance tool, are shipped separately.

3-2 RECEIVING

If the circuit breaker element is not to be used immedi-
ately but is to be placed in storage; maximum protection
can be obtained by keeping it packed as shipped.
Upon receipt of the equipment, inspect the containers
for any signs of damage or rough handling. Open the
containers carefully to avoid any damage to the con-
tents. Use a nail puller rather than a crow bar when
required. When opening the containers, be careful to
save any loose items or hardware that may be other-
wise discarded with the packing material. Check the
contents of each package against the packing list.
Examine the circuit breaker element for any signs of
shipping damage such as broken, missing or loose
hardware, damaged or deformed insulation and other
components. File claims immediately with the carrier if
damage or loss is detected and notify the nearest
Cutler-Hammer Office.

3-3 HANDLING

!
DO NOT USE ANY LIFTING DEVICE AS A PLAT-
FORM FOR PERFORMING MAINTENANCE, REPAIR
OR ADJUSTMENT OF THE BREAKER OR FOR
OPENING, CLOSING THE CONTACTS OR CHARG-
ING THE SPRINGS. THE CIRCUIT BREAKER ELE-
MENT MAY SLIP OR FALL CAUSING SEVERE PER-
SONAL INJURY. ALWAYS PERFORM MAINTE-
NANCE, REPAIR AND ADJUSTMENTS ON A SOLID
WORK SURFACE CAPABLE OF SUPPORTING THE
BREAKER ELEMENT.
CAUTION
When a breaker element is ready for installation, a lifting
yoke in conjunction with an overhead lifter or portable
floor lifter can be used to move a breaker element.
When a breaker element is to be lifted, position the lift-
ing yoke over the breaker element and insert lifters into
the breaker element side openings with the lifting hole
toward the interrupters. Once the lifting yoke is securely
seated in the holes, the breaker element can be careful-
ly lifted and moved.
3-4 STORAGE
If the circuit breaker element is to be placed in storage,
maximum protection can be obtained by keeping it
packed as shipped. Before placing it in storage, checks
should be made to make sure that the breaker element
is free from shipping damage and is in satisfactory oper-
ating condition.
The circuit breaker element is shipped with its contacts
open and closing springs discharged. The indicators on
the front panel should confirm this. Insert the mainte-
nance tool in the manual charge socket opening (Figure
3-3). Charge the closing springs by pumping the handle
up and down approximately 38 times until a crisp metal-
lic "click" is heard. This indicates that the closing springs
are charged and is shown by the closing spring
"charged" (yellow) indicator. Remove the maintenance
tool. Operate the push-to-close button. The breaker ele-
ment will close as shown by the breaker contacts
"closed" (red) indicator. Operate the push-to-open but-
ton. The breaker element will trip as shown by the
breaker contacts "open" (green) indicator. After complet-
ing this initial check, leave the closing springs "dis-
charged" and breaker contacts "open".
Outdoor storage of the breaker element is NOT recom-
mended. If unavoidable, the outdoor location must be
well drained and a temporary shelter from sun, rain,
snow, corrosive fumes, dirt, falling objects and exces-
sive moisture must be provided. Containers should be
arranged to permit free circulation of air on all sides and
temporary heaters should be used to minimize conden-
sation. Moisture can cause rusting of metal parts and
deterioration of high voltage insulation. A heat level of
approximately 400 watts for each 100 cubic feet of vol-
ume is recommended with the heaters distributed uni-
formly throughout the structure near the floor.
Indoor storage should be in a building with sufficient
heat and air circulation to prevent condensation. If the
building is not heated, the same general rule for heat as
for outdoor storage should be applied.
I.B. 32-255-G
Effective 12/02