ITE 5HV-150, Инструкция по эксплуатации, Страница: 17 / 20

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Fig. 20-Guic/ing SHV-350 Breaker
into Housing
INSTALLATION OF SHV-350 CIRCUIT
BREAKER
1.
The breaker should be in the "OPEN" posi­
tion and the position indicator at the "TEST"
position.
2. By use of the steering handle, align the sides
of the circuit breaker with the sides of the circuit
breaker compartment.
3. Back the breaker into the compartment so
that the guide bar at the bottom of the circuit
breaker enters the guide slot on the compartment
floor. See Fig. 20.
4.
Push the breaker approximately half way into
the compartment and then remove the steering
handle.
5. Using the two handles on the lower front
panel, continue pushing the breaker until the
rollers on the racking mechanism cranks snap up
into the vertical guides in the structure. The circuit
breaker is now latched in the "TEST" position.
6. If desired, energize the control circuit and
electrically close and trip the circuit breaker by
means of the push buttons.
7. With the circuit breaker in the "OPEN"
position, insert the racking rod, push down on the
racking release lever, and rack the breaker to the
"OPERATING" position as shown in Fig. 21.
IB-5909
Fig. 21-Raclcing in SHV-350 Breaker
to
Fully Connected Position
REMOVING 5HV -350 BREAKER FROM
HOUSING
1. Trip the breaker by means of the control
switch.
2. Open the compartment door, insert the rack­
ing rod, push down on the racking release lever
and rack the circuit breaker out to the
'
'rEST"
position as indicated by the position
indicator.
If it is desired to remove the circuit breaker from
the switchboard, continue as follows:
3. Insert the racking rod into the hole in the
racking
wheel
directly above the "TEST" position
nameplate.
4.
Push down on the racking release lever, and
move the racking rod slightly (15 degrees) in the
"IN" direction.
5. Release the racking release lever, and move
the racking rod in the direction of the "OUT"
arrow {upward) approxima.tely
30 degrees. This
upward motion of the racking rod must be fast
enough to move the circuit breaker forward past
the self-latching "TEST" position.
6. Remove the racking rod and pull
the
circuit
breaker forward, using the two handles on the
,.
·
lower front panel, until the circuit breaker
is
' · ·
approximately half way out of the compartment.
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