10
A DVAC® 3 8 K V I N STA LL ATI ON , OPE R ATI ON A N D M A I NTE N A NCE M A N UA L
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Insertion and removal
This section describes the necessary steps for
inserting and removing a circuit breaker to and
from the switchgear’s “disconnect” position.
Racking the circuit breaker to and from disconnect,
test and connected positions is covered in the next
section.
The following rules should always be observed
when inserting a circuit breaker into the switchgear
compartment:
• Note: ABB has specific accessories to be used
with ABB breakers.
• Always compare the breaker ratings nameplate
with the switchgear ratings nameplate.
• Verify that breaker secondary control voltage
ratings are compatible with switchgear control
voltage ratings.
• Always make sure lifting angles (item
1
on
previous page) are removed prior to inserting
breaker into breaker compartment, or “cell.”
• Do not attempt to insert the circuit breaker prior
to a complete inspection of both breaker and
switchgear compartment.
• Breaker and compartment must be free of tools,
obstructions or foreign objects.
• Do not attempt to insert or rack a closed circuit
breaker.
• Do not force a breaker into or out of the cell.
• Do not remove or rotate the interference blocking
plate in the switchgear compartment. This
interference plate prevents an improperly rated
circuit breaker from being inserted into the
switchgear compartment.
Remove the lifting angle before inserting
the circuit breaker into the cell.
