Inspection After Occurrence Of Tripping - WEG ABW16 Manual De Instrucciones

open Circuit Breaker
Accessories
Items
Electric On
Closing coils
control.
Electric Off
Opening coils
control.
Verification of
Auxiliary contacts
continuity.
Verification
Motorized of automatic
activation charging of the
springs.
Auxiliary position Verification of
contacts switching.
Verification of
Subvoltage coil activation of
circuit breaker

5.4 InSpeCtIon AFter oCCurrenCe oF trIppIng

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.
70 | ABW
Method of
Inspection
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.
The circuit breaker turns off
when the subvoltage coil
supply (module) is removed.
Criteria
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.
Replacement of the coil and
subvoltage module.