ABB SACE Emax 2 Series Operating Instructions Manual page 268

Low voltage air circuit-breaker
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Final check list Perform the operations described below after having completed the general inspection procedures and
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Continued from the previous page
Accessories
to
(*)
Procedure
be checked
1. Check selectivity connections (between Ekip Touch and the other units) as
shown in circuit diagrams
2. Provide Ekip Touch with auxiliary power and make sure that CB status is:
Open
3. Check that the protection of the selectivity concerned has been enabled
(example: S protection)
4. Select the Test - Zone Selectivity menu and the submenu of the protection
concerned; repeat points 5, 6, 7 and 8 for each protection activated
NOTE: for selectivity D, consider submenu S for the Forward connections
Zone selectivity
and G for the Backward connections
Check Output:
5. Select the Force Output command and check, on the unit connected to the
Ekip Touch output, that the state of its Input = ON
6. Select Release Output and check on the unit that Input = OFF
Check Input:
7. Select the Force Output command in the unit connected to the Ekip Touch
input; check on Trip unit: Input = ON
8. Select Release Output and check on Trip unit: Input = OFF
checked the accessories. Print this sheet and use it to make an inspection report in the "Checks" column.
Operation
1
Circuit-breaker OFF
Circuit-breaker
2
connected
3
Trip unit Parameters
Removal of the Ekip
4
TT
Connecting the
5
voltage
Closing the
6
switchgear
7
Charging the springs Charge the closing springs
8
Undervoltage coil
Opening and closing
9
coils
Mechanical interlock
10
of the circuit-breaker
11
Locking devices
12
Status signals
Description
Open the circuit-breaker
Switch the circuit-breaker in withdrawable version to the
connected position and reposition the crank in its seat
Adjust the protection trip unit in accordance with the
design specifications of the installation (drawn up by
design engineer of the installation). If necessary, power the
protection trip unit with an Ekip TT unit
If present, remove the Ekip TT unit
Connect the auxiliary voltage
Close the switchgear door
Make sure that undervoltage coil is energized
Make sure that opening and closing coils are NOT energized
If present, make sure that the mechanical interlock of the
circuit-breaker is not active
If present, make sure that the locking devices of the circuit-
breaker are not active
Make sure that the signalling devices on the front of the
circuit-breaker indicate: circuit-breaker open - springs
discharged O - OPEN and white spring signalling device
DISCHARGED SPRING
ABB | SACE Emax 2
Check
Putting into service and maintenance
1 - Putting into service

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