Section 4 Inspection And Operation; Initial Inaspection; Manual Operation Check; Interface Verification - Eaton Cutler-Hammer VCP-WR Series Instructions For The Use, Operation And Maintenance

SECTION 4: INSPECTION AND
OPERATION
4-1 INITIAL INSPECTION
Before attempting to use or put a breaker into service,
examine it for loose or obviously damaged parts. In
addition, compare the breaker nameplate with
associated drawings, shipping papers and ordering
information for compatibility. A breaker should also be
operated manually.
In the case of a drawout breaker application, an
electrical operations check will be performed later after
the breaker has been combined with its drawout truck,
secondary wiring has been completed and an
appropriate structure with required interlocks provided.
For fixed breaker applications, an electrical operations
check should be performed after the breaker is
appropriately mounted, secondary wiring completed,
and appropriate interphase barriers installed.

4-2 MANUAL OPERATION CHECK

The breaker element should be on a solid, stable
work surface. Place the maintenance tool into the
manual charge socket opening and charge the
closing springs with approximately 38 up and down
strokes of the handle (Figure 3-7). When charging is
complete, the closing crank goes over center with an
audible "click" and the springs Charged/ Discharged
indicator shows "Charged".
NOTICE
If the springs are to be charged on a closed breaker,
no click is heard at the end of the charging
operation. Discontinue charging and remove the
maintenance tool as soon as the "Charged" flag is
fully visible.
Remove the maintenance tool. Close and trip the
breaker several times using the manual trip and close
buttons on the front of the circuit breaker (Figure 3-7).
I.B. 8295A61H07

4-3 INTERFACE VERIFICATION

It is the customer's responsibility to insure that all
drawout circuit breakers interface and operate properly
in conjunction with their breaker compartments. This
will include but not be limited to verification that
customer supplied trucks interface correctly with Cutler-
Hammer supplied breaker elements and the customer's
complete drawout circuit breaker interfaces properly
with the breaker compartment. All ANSI required
interlocks between the drawout circuit breaker and the
breaker compartment are the customer's responsibility.
For more information visit: www.EatonElectrical.com
Instruction Book
Effective: February 2007 Page 25