ABB | SACE Emax 2
Putting into service and maintenance
1 - Putting into service
46 | © 2023 ABB | 1SDH001000R0002 - ECN000297030
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.
External modules
1. For all modules with terminal box: check connection to
Ekip Supply in
mechanical seat of terminal box
For
Ekip Signalling 10K and Ekip Multimeter: check connection of the bus of
module (W3-W4) to the respective sockets of
Ekip supply or terminal box
2. Power up the Trip unit (and external modules if there is a separate supply)
and make sure they are on
3. Check on menu or via Ekip Connect that the local bus on the Trip unit is
enabled
4. Check that the Power LED on each module is on in the same way as the
Power LED of Ekip Touch (steady or synchronous flash)
5. Check on menu or via Ekip Connect to make sure that all installed modules
are present and that there are no alarms
External neutral,
single-pole sensor
(SGR), residual
current sensor
(Rc)
1. Make sure that the sensor is connected to the terminal box
2. Power up the Trip unit and make sure it is on
3. For
External neutral: check in the Settings - Circuit-breaker menu that
Configuration= 3P + N; otherwise change the parameter
For single-pole and residual current sensors: set presence and size in the
Settings - Circuit-breaker - Earth protection menu; protection parameters in
the
Protections or Advanced menus
4. Make sure there are no alarms
(*)
if present.
(**) withdrawable versions only.
