ABB | SACE Emax 2
248 | © 2013
ABB |
1SDH001000R0002 - L7804
Putting into service and maintenance | 2 - Identification of alarms or failures
Continued from the previous page
Faults
Possible causes
Suggestions
The circuit-breaker
doesn't open when
the opening coil is
powered
The operating mechanism is
locked
Contact ABB
The power supply voltage of the
auxiliary circuits is too low
Measure the voltage: it should
not be lower than 85% of the
rated voltage of the coil
The power supply voltage is
different to that indicated on the
rating plate
Use the correct voltage
The cables of the coil are
not inserted correctly in the
terminals
Make sure there is continuity
between cable and terminal
and if necessary reconnect
the cables of the coil to the
terminals
The connections of the power
supply circuit are wrong
Check the connections using the
relevant wiring diagram
The opening coil is damaged
Replace the coil
The circuit-breaker
doesn't open when
the under-voltage coil
trips
The operating mechanism is
locked
Perform the opening operation
manually; if the fault persists
contact ABB
It is not possible
to load the closing
springs by means of
the manual loading
lever
The operating mechanism is
locked
Contact ABB
It is not possible
to load the closing
springs by means of
the gearmotor
The cables of the gearmotor
are not inserted correctly in the
terminals
Make sure there is continuity
between cable and terminal
and if necessary reconnect the
cables of the gearmotor to the
terminals
The connections of the power
supply circuit are wrong
Check the connections using
the relevant wiring diagram
The circuit-breaker is in
disconnected position
Switch the circuit-breaker to the
test or connected position
The gearmotor protection
internal fuse has tripped
Replace the fuse
The gearmotor is damaged
Replace the gearmotor
It is not possible to
press the button in
order to insert the
racking out crank
handle
The circuit-breaker is closed
Press the opening push-button
in order to allow the insertion
of the crank with the circuit-
breaker open
It is not possible to
insert the moving
part in the fixed part
The racking-in/racking-out
operation is not performed
correctly
See the chapter “Description
- circuit-breaker insertion and
extraction operations” on page
18
The moving part is incompatible
with the fixed part
Check the compatibility
between the moving part and
the fixed part
It is not possible
to lock the circuit-
breaker in the open
position
The opening push-button is not
being pressed
Press the opening push-button
and activate the lock
The lock in open position is
defective
Contact ABB
It is not possible to
perform the Trip Test
The opening solenoid is not
inserted correctly
Check the connection of the
opening solenoid and check the
messages on the display
The trip signal of the protection
release has not been reset
Press the reset push-button
The busbar current is greater
than 0
Correct condition of operation.
Continued on the next page