ABB | SACE Emax 2
92 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
Putting into service and maintenance | 1 - Putting into service
Continued from the previous page
Accessories
(*)
to be checked
Procedure
Closing coil with
Ekip Com Actuator
1. Power the protection trip unit with the Vaux auxiliary power supply.
2. Power the Ekip Com Actuator contacts.
3. Charge the springs.
4. Select “close CB” from the Ekip Touch menu
Result: The circuit-breaker closes correctly; the signals are normal.
NOTE! The test can be performed if the protection trip unit and the coils are
energized.
Lock for circuit-
breaker in open
position (key or
padlock)
1. Open the circuit-breaker
2. Keep the opening pushbutton pressed
3. Turn the key and remove it
4. Attempt the circuit-breaker closing operation.
Result: Both manual and electrical closing is prevented.
Auxiliary open/
closed contacts of
the circuit-breaker
1. Connect the auxiliary contacts to appropriate signalling circuits or to the
multimeter.
2. perform some closing and opening operations on the circuit-breaker.
Result: signalling occurs normally.
Circuit-breaker
connected,
isolated for test,
disconnected
auxiliary contacts
1. Connect the auxiliary contacts to appropriate signalling circuits.
2. bring the circuit-breaker to the connected, isolated for test and disconnected
position.
Result: the signals due to the relative operations are normal.
Locking devices
for connected/
test/disconnected
positions
(**)
1. Perform operating tests.
Result: the interlocks function correctly.
Interlocks between
circuit breakers
assembled side by
side and stacked
1. Perform operating tests.
Result: the interlocks function correctly.
Racking-in/out
device
(**)
1. Perform a few racking-in and racking-out operations.
Result: in the rack-in operation the circuit-breaker is connected correctly. There is
no particular resistance during the first turns of the handle.
Auxiliary
accessories and
auxiliary voltage
Verify the proper installation. The supply voltage of the auxiliary accessories must be
between 85% and 110% of the rated voltage for the auxiliary accessories.
Modules
1. Power the protection trip unit
Result: Verify that Power LED is lit up on each accessory present.
Make sure that the Local Bus communication line is activated on the protection trip
unit.
External
connections
1. In the case of Neutral external homopolar, or residual-current sensors to set the
model and protection parameters appropriately.
Result: No alarm present on the protection trip unit.
WARNING! During this phase the circuit-breaker must be open and
disconnected (if withdrawable).
(*)
if present.
(**) withdrawable versions only.
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