GE AKD-10 Application Manual page 7

• Breaker rejection feature (standard)
A rejection system is provided as standard in each breaker compartment
to prevent the insertion of a breaker with inadequate short circuit and/or
incorrect continuous current ratings.
• Wheels and guidebar (standard)
™
All WavePro circuit breakers are equipped with wheels and a guidebar to pro-
vide easy and accurate drawout operation. When installing the breakers, they
are lowered onto the extended drawout rails. Wheels on the side of the breaker
allow the breaker to be easily rolled into the cubicle until the breaker engages
the racking pins in the cubicle. The breaker is equipped with a rugged guidebar
that ensures precise alignment of the primary and secondary disconnects during
insertion and withdrawal.
• Drawout padlock provision (standard)
WavePro and AKD-10 offer an array of standard, safety locking features that
provide extra measures of security when breaker, equipment, or load mainte-
nance is performed. In addition to the padlocking feature on the breaker that
keeps it open and tripfree, WavePro breakers are also equipped with provisions
Œ  to padlock them in either the TEST or DISCONNECT position. Furthermore,
breaker cubicles are furnished with padlocking provisions on the drawout rails
Ž to prevent unauthorized installation of a breaker that has been removed from
the cubicle for equipment or load maintenance.
This array of locking features should accommodate any type of "lockout -
tagout" procedure a customer may have implemented at their facility. All of the
padlock provisions on WavePro breakers and AKD-10 equipment will accept any
combination of up to three padlocks with 1/4" to 3/8"
diameter shank.
• Expansion capabilities
AKD-10 switchgear is designed to be easily expanded to handle increased loading.
It is very common to specify "fully equipped future breaker" cubicles when
ordering a substation or line-up. The fully equipped future breaker cubicle con-
tains line and loadside primary disconnects, drawout rails and a cutout in the
cubicle door. At time of manufacture, the cubicle can also be outfitted with any
necessary metering, protection, and control devices if so specified or these can
be added when the breaker is installed. Adding a new feeder can then be as
simple as removing a cover from the cubicle door and installing the breaker.
If the breaker arrangement in a line-up of AKD-10 yields blank compartments,
these can be specified as "field convertible blank compartments" or "space
compartments." The space compartment has the lineside bus installed in the
cubicle but has neither the loadside bus nor the drawout rails. The cubicle door
is furnished without a cutout. Converting the space compartment to accept a
feeder breaker requires the addition of the loadside bussing, the drawout rails
and a new cubicle door. All of these items are added from the front of the
switchgear. Space compartments apply to 800 through 2000 amp frame
breakers only.
Standard bus configurations used in AKD-10 have provisions for future bus
extension built in. Should the switchgear have no future breaker nor space
compartments, additional vertical sections can be mechanically and electrically
connected to the AKD-10 line-up without modifications or the use of transition
sections. AKD-10 sections can also be added to existing AKD-8 equipment without
the use of transition sections.
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