ABB SACE Emax 2 Series - Page 276

ABB | SACE Emax 2
Putting into service and maintenance
3 - E1.2 maintenance and E2.2, E4.2 and E6.2 first level maintenance
273 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
Final checks
Reassemble and check the circuit-breaker:
1. Reassemble all the parts by performing all the operations indicated in the paragraph “Disassembly
Operations” in reverse order and, if necessary, reconnect the auxiliary power supply.
2. Put the movable part (breakers) in the test position (see indication TEST).
3. Perform the following operations 10 times:
• Opening (in both local and remote modes, if applicable)
• Closing (in both local and remote modes, if applicable)
• Tripping via Trip Test
4. Perform the operations in the following sequence:
• Open - Springs discharged
• Open - Springs charged
• Closed - Springs discharged
• Closed - Springs charged
5. Check that the following operate correctly:
• accessories, if provided.
• gearmotor, if provided.
• undervoltage coil, if provided.
• opening coil, if provided.
• closing coil, if provided.
• auxiliary contacts of the circuit-breaker, if provided.
• lock for circuit-breaker in open position (key or padlock), if provided
Interlock check
Check that the vertical or horizontal interlocking devices (if provided) are installed and that they operate
correctly.
WARNING! the interlocks cannot be tested in the Test or Disconnected positions.
Perform maintenance periodically as indicated in the table below.
Activity Frequency Maintenance operations
Functionality
1 year or
20% of mechanical life or
20% of electrical life
See kit sheet
Check tightness
Lubrication As shown in the figure
Cables
Three years or 50% of the mechanical life or
50% of the electrical life of the largest
circuit-breaker involved in the interlock.
After a trip due to a short-circuit.
Replacement is advisable
(*)
(*)
(*)
Figure 153
(*)
Use Mobilgrease 28, also available in the ABB greasing kit.