Air Circuit Breaker Interruptor Abierto Disjuntor Aberto ABW - Weg

Fault probable Cause
Undue
activation
of the
protection
unit
Protection
unit does not
activate
Insertion/
removal is
not possible
Indicator
and/or
position lock
do not work
Contatos
auxiliares
não
funcionam
1. Incorrect settings of the
protection functions.
English
open Circuit Breaker
Corrective Actions
1st Alternative 2nd Alternative
Set parameters correctly.
2. Fault in the protection unit. -
1. Poor contact in the
connection to the internal
TCs.
2. Poor contact in the
connection with the trip coil.
Contact WEG
technical
assistance.
Check status of the
connections by means of the
protection unit menus. Contact WEG
Check activation by means
of the test menu of the
protection unit.
3. Fault of protection unit. -
1. Removal rod does not
enter into the orifice.
2. Removal rod does not
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.
2. Fault in the removal
mechanism – removal rod
continues free for movement
even after the lock jumps
outward.
3. Fault in removal
mechanism – position
indicator does not work.
1. Poor contact in internal
connections.
2. Parts of the block of
auxiliary contacts damaged.
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).
-
-
-
-
technical
assistance.
Contact WEG
technical
assistance.
Contact WEG
technical
assistance.
.
- Contact WEG
technical
-
assistance.
ABW | 73