Instruction Book
Effective: March 2007
Page 17
IB6513C80G
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a. The circuit breaker
’
s faceplate and barriers must be
positioned properly and securely bolted in position, as
shown in Figures
3-2
through
3-5,
before inserting the
breaker into the cell.
CAUTION
EXAMINE THE INSIDE OF THE CELL BEFORE
INSERTING THE BREAKER FOR EXCESSIVE DIRT
OR ANYTHING THAT MIGHT INTERFERE WITH THE
BREAKER TRAVEL.
WARNING
KEEP HANDS OFF THE TOP EDGE OF THE FRONT
BARRIER WHEN PUSHING A BREAKER INTO A
CELL. FAILURE TO DO SO COULD RESULT IN
BODILY INJURY, IF FINGERS BECOME WEDGED
BETWEEN THE BREAKER AND THE CELL. USE THE
HANDLES PROVIDED ON THE FRONT OF THE
BREAKER FACEPLATE, OR USE BOTH FULLY
OPENED HANDS FLAT ON THE FRONT OF THE
FACEPLATE.
b. Position the breaker in front of the cell, and line up
the guide channel on the rear right hand side of the
breaker near the floor with the guide rail on the right
hand side of the cell floor. Once the breaker is aligned
with the cell floor guide, push the breaker into the cell
until the rail latch at the front of the guide channel
catches in a notch in the guide rail, and prevents
further movement of the breaker toward the rear of the
cell (Figures
4-9
and
4-10
).
The breaker is now in the
Test position, and secondary contacts can be
engaged.
NOTICE
As soon as the secondary contacts make up, the
motor will charge the closing spring, if the control
circuit is energized.
c. To engage the secondary contacts on the 5kV.
design, lift the handle on the front left hand side of the
breaker chassis to a horizontal position. Once the rod
is pointing straight out from the breaker, push it
manually to the rear until the secondaries are initially
en-gaged. At this point, the small horizontal pin in the
handle will have engaged two slots in the lever, which is
pivoted immediately above the handle. To insure
complete secondary engagement, push down firmly on
the curved end of the lever as far as it will go,
using your foot or hand (Figure
4-11
).
When using a
foot, care should be taken not to bend the lever by
using excessive force.
d.To engage the secondary contacts on the 7.5 or 15kV.
designs, unlatch the secondary operating rod, and
move it to the left, until it points straight out from the
breaker. Push the rod manually to the rear until the
secondaries are initially engaged. Once initial
engagement is achieved, hold the operating rod firmly
in that position with one hand, while grasping the
secondary engaging handle with the other hand. The
secondary engaging handle is located to the right of
the operating rod, just inside a rectangular hole. By
pulling firmly on the engaging handle, complete
secondary engagement will be insured (Figure
4-12
).
e. The breaker may now be electrically closed and
tripped by using a control switch on the cell door, or it
may be manually operated by means of the close and
trip buttons, located on the faceplate of the breaker.
F i g u r e 4 - 9 P o s i t i o n i n g o f 5 k V D H P - V R B r e a k e r