Installation
Inspection
Check the following points:
1. Make a final mechanical inspection of
the circuit breaker. Verify the contacts
are in the OPEN position, and the
closing springs are DISCHARGED.
2. Confirm the circuit breaker is properly
set up and reasonably level on its
foundation and appropriately anchored
to the foundation.
3. Check the tightness of all hardware on
the cabinet, adjustable legs, bushings,
bus bars and operator mechanism.
4. Verify that the operating mechanism
has been properly lubricated.
5. Blocking, supports and other
temporary ties remove from circuit
breakers, instruments, protective
relays, etc.
6. Proper fuses correctly placed.
7. Temporary wiring jumpers (used on
the secondaries of current
transformers wired to external devices,
as shown on wiring diagrams)
removed.
8. Ground connections properly made.
9. Incoming primary and secondary
connections properly made and
checked for shorts or undesired
grounds.
10. Verify all covers, and bolted connectors
are securely fastened.
11. Protective relays coordinated with
other protective relays and protection
devices on the system. Refer to
protective relay instructions before
making any adjustments.
12. Examine the vacuum interrupters for
damage, and wipe the vacuum
interrupters and other insulating parts
with a clean, dry cloth.
13. All filters in vent areas are clean and
free of shipping or construction
material.
14. Retouch any paint that has been
damaged during installation.
Shipping bracing and tag between phase
barriers (on units so equipped) may
damage circuit breaker.
May result in damage to equipment.
Remove bracing and tag (on units so
equipped) before energizing circuit breaker
with high voltage.
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