Air Circuit Breaker Interruptor Abierto Disjuntor Aberto ABW - Weg

open Circuit Breaker
Accessories
Items
Closing coils
Opening coils
Auxiliary contacts
Motorized
activation
Auxiliary position
contacts
Subvoltage coil
Method of
Inspection
Electric On
control.
Electric Off
control.
Verification of
continuity.
Verification
of automatic
charging of the
springs.
Verification of
switching.
Verification of
activation of
circuit breaker
Criteria
The circuit breaker must
turn on after coil supply.
The circuit breaker must
turn off after coil supply.
Verify switching of contacts
after operation of the circuit
breaker.
Motorized activation must
automatically charge the
springs of the mechanism
of operation of the circuit
breaker.
Contacts switch according
to position of the circuit
breaker within the removal
carriage.
5.4 InSpeCtIon AFter oCCurrenCe oF trIppIng
70 | ABW English
recommended
procedures
Replacement of closing
coil.
Replacement of opening
coil.
Replacement of block of
auxiliary contacts.
Replacement of the
motorized activation.
Replacement of the block
of contacts.
The circuit breaker turns off
Replacement of the coil and
when the subvoltage coil
subvoltage module.
supply (module) is removed.
After opening of the circuit breaker through activation of the protection unit, a detailed
inspection must be made, as described before, for checking its operation.
In addition, the temperature rise of the circuit breaker must be accompanied to check
it operating conditions. In the case of elevated overheating, the circuit breaker must be
replaced.