Eaton 380 VCP-Wind, Инструкция по использованию, эксплуатации и обслуживанию, Страница: 18 / 49

Page 12
I.B. 70A2580H02
Effective November 2012
CAUTION
BEFORE INSERTING THE CIRCUIT BREAKER
EXAMINE THE INSIDE OF THE CELL STRUCTURE
FOR EXCESSIVE DIRT OR ANYTHING THAT MIGHT
INTERFERE WITH THE CIRCUIT BREAKER
MOVEMENT.
WARNING
EXTREME CAUTION MUST BE EXERCISED TO
INSURE THAT PRIMARY CIRCUITS ARE NOT
ENERGIZED WHILE CHECKS ARE PERFORMED IN
THE CIRCUIT BREAKER COMPARTMENT. FAILURE
TO DO SO MAY RESULT IN PERSONAL INJURY OR
DEATH.
The circuit breaker is normally tested electrically in its cell
structure in the TEST position. To achieve the TEST
position, the circuit breaker must first be placed in the cell
structure and the secondary contacts engaged. To
complete this testing procedure, the operator should first
be familiar with inserting and removing the circuit breaker
into and from the cell structure.
WARNING
DO NOT PULL ON OR USE THE MAIN (PRIMARY)
CONDUCTORS AND OR THE PRIMARY
DISCONNECTS TO MANEUVER THE CIRCUIT
BREAKER IN ANY FASHION. FAILURE TO COMPLY
WITH THIS CAUTION COULD RESULT IN
SIGNIFICANT EQUIPMENT DAMAGE.
4-8.1 CIRCUIT BREAKER INSERTION AND
REMOVAL
The drawout VCP-Wind circuit breaker is designed to be
in one of three different positions within the structure with
the door closed, DISCONNECT, TEST and CONNECT.
While in the structure, the circuit breaker should never be
allowed to remain at an intermediate position between
the TEST and CONNECT positions.
a) DISCONNECT POSITION: (See Figure 4-4)
Position the circuit breaker squarely in front of the
structure. Integrally mounted wheels facilitate circuit
breaker movement outside of and into the structure.
Once the side mounted circuit breaker alignment rollers
are aligned with the structure mounted alignment rails,
pull the shoot bolt handles in to retract the pins on the
side of the breaker. Then push the breaker into the
structure until the pins line up with the first set of slots in
the alignment rail blocks.
b) TEST POSITION: (See Figure 4-5)
Pull the shoot bolt handles in, which will remove the
retractable pins from the first set of slots in the
structure alignment rail blocks and then push the
circuit breaker in until the pins line up with the second
set of slots. Then release the shoot bolt handles
making sure handles return back to their outer most
position. If handles are not in outer most position the
breaker will not be able to be levered.
Once in the TEST position secondary contacts have
automatically engaged and the circuit breaker floor
wheels should be lifted off the floor approximately
1/8”.
c) CONNECT POSITION: (See Figure 4-6)
To move the circuit breaker from the TEST to
CONNECT position the breaker must be open, it can
not be levered between TEST & CONNECT positions
if the breaker is closed), engage the levering crank
with the circuit breaker mounted levering shaft and
begin turning the handle in a clockwise direction.
Structure mounted positive guidance rails interface
with the circuit breaker alignment rollers to insure
proper primary and secondary connections.
NOTICE
The circuit breaker includes all necessary
interlocks that when interfaced with a compatible
structure will render the circuit breaker
mechanism mechanically and electrically trip-
free during the levering process into or out of the
structure. For detailed information pertaining to
individual circuit breaker interlocks,
refer to Paragraph 4-9 in this section.
When the circuit breaker reaches the CONNECT
position, it will become impossible to continue turning
the levering crank in the clockwise direction. When
using the levering crank, the torque limiter will slip to
prevent damage to the circuit breaker.
To remove the circuit breaker from the structure,
reverse the procedure just described by turning the
levering crank in a counterclockwise direction. Keep
in mind that you can not remove a breaker from the
CONNECT position if it is closed.