Citadel 2.0 - Instruction Manual - page:
117
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21
Automatic spring-charging check (control power required)
Repeat the automatic spring-charging check described in the section describing the
installation check and initial functional tests (refer to pages 15 to 21).
1.
The circuit breaker must be energized with control power for this check.
2.
Energize the control-power source.
3.
When control power is connected to the circuit breaker, the motor should
immediately operate and the closing spring should automatically charge. Visually
verify that the closing spring is charged.
A temporary source of control power may be required when performing maintenance
checks out of the switchgear cubicle.
When control power is connected to the circuit breaker, the closing spring should auto-
matically charge.
Electrical close and trip check (control power required)
An energized operational check of the Citadel circuit breaker shall be performed. This
check is made with the Citadel breaker in the test position of the switchgear cubicle.
The cubicle shall have its control power energized.
1.
Once the circuit breaker springs are charged, move the switchgear Close /
Trip switch to the Close position. Verify by both the sound of the circuit breaker
closing and by the main contact status indicator that the circuit breaker contacts
are closed.
2.
As soon as the circuit breaker has closed, the automatic spring-charging process
is repeated.
3.
After a satisfactory close operation is verified, move the switchgear Close / Trip
switch to the Trip position. Verify by both the sound of the circuit breaker opening
and by the main contact status indicator that the circuit breaker contacts are open.
4.
After a satisfactory open operation is verified, hold the circuit breaker manual
Trip button and apply and maintain an electrical close signal. The circuit breaker
should close, immediately trip, the close spring should charge, and the circuit
breaker should not attempt to close again.
Completion of these checks demonstrates satisfactory operation of auxiliary switches,
internal relays and open and close coils.
Hazardous voltage and high-speed moving parts will cause death, serious
injury and property damage.
NEVER bypass interlocks or otherwise defeat interlocks. Interlocks must
be in operation at all times.
Read instruction manuals, observe safety instructions and use qualified,
trained personnel ONLY.
DANGER
M A I N T E N A N C E
