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Hazardous voltage and high-speed moving parts.
Will cause death, serious injury and property damage.
Do not bypass interlocks or otherwise make interlocks inoperative.
Interlocks must be in operation at all times.
Read instruction manuals, observe safety instructions and use qualified
personnel.
Automatic spring-charging check
(control power required)
Repeat the automatic spring-charging check
described in the section describing the
installation checks and initial functional tests
(refer to pages 6-7).
Primary tasks of this check are:
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 closing spring should
automatically charge. Visually verify that
the closing spring is charged.
Note:
A temporary source of control power
and test leads may be required if the control-
power source has not been connected to the
circuit breaker. When control power is
connected to the circuit breaker, the closing
spring should automatically charge.
Electrical close and trip check
(control power required)
A check of the circuit breaker control circuits
shall be performed. This check is made with
the control circuit of the circuit breaker
energized.
1. Once the circuit breaker springs are
charged, operate the circuit breaker
electrical close command (via pushbutton,
control switch or equivalent means).
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, operate the circuit breaker
electrical close command (via pushbutton,
control switch or equivalent means).
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.
Summary of Contents for 3AH35-SE Series
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