Fault
probable Cause
Undue
1. Incorrect settings of the
activation
protection functions.
of the
protection
2. Fault in the protection unit.
unit
1. Poor contact in the
connection to the internal
TCs.
Protection
unit does not
2. Poor contact in the
activate
connection with the trip coil.
3. Fault of protection unit.
1. Removal rod does not
enter into the orifice.
Insertion/
removal is
2. Removal rod does not
not possible
turn.
3. Claws of the removal
carriage damaged.
1. Fault in the removal
mechanism – lock does not
jump outward when circuit
breaker reaches TEST and/or
INSERTED positions.
Indicator
2. Fault in the removal
and/or
mechanism – removal rod
position lock
continues free for movement
do not work
even after the lock jumps
outward.
3. Fault in removal
mechanism – position
indicator does not work.
1. Poor contact in internal
Contatos
connections.
auxiliares
não
2. Parts of the block of
funcionam
auxiliary contacts damaged.
Corrective Actions
1st Alternative
Set parameters correctly.
-
Check status of the
connections by means of the
protection unit menus.
Check activation by means
of the test menu of the
protection unit.
-
Maintain the off button
pressed to release the
internal lock and insert the
removal rod.
Turn lightly the removal
rod in the clockwise and
counterclockwise direction
and press the position lock
inward (UNLOCK position).
-
-
-
-
-
-
English
open Circuit Breaker
2nd Alternative
Contact WEG
technical
assistance.
Contact WEG
technical
assistance.
Contact WEG
technical
assistance.
Contact WEG
technical
assistance.
.
Contact WEG
technical
assistance.
ABW | 73