General Description - GE AKD-10 Application Manual

General description

AKD-10 Switchgear is industrial-duty equipment built to
ANSI standards and uses 100% rated WavePro
Voltage Power Circuit Breakers. It is designed to have more
margin within its ratings to provide maximum continuity of
service for those applications subject to severe duty, such as
repetitive switching encountered with motor starting, power
factor correction, demand control, load shedding, etc.
A major factor contributing to this extended continuity of
service is the availability of renewal parts complete with
detailed maintenance instructions and original equipment
documentation. From a coordination standpoint, WavePro
circuit breakers provide full selectivity with each other and
with other protective devices. The bus sizing is based on
temperature rise rather than on current density (as with
switchboard construction).
AKD-10 switchgear is available with the following maximum
nominal ratings:
• 600 Vac
• 5000 Amps ac
• 50/60 Hz
• 2200 Vac RMS dielectric
• 200 kA symmetrical short circuit
AKD-10 switchgear sections are provided in either 22", 30" or
38" widths. It is designed to be operated in an ambient tem-
perature between -30°C and 40°C (-22°F and 104°F).
WavePro low voltage power circuit breakers are available for
AKD-10 switchgear in six frame sizes:
• 800A WPS/WPH/WPX/WPF-08
• 1600A WPS/WPH/WPF-16
• 2000A WPS-20
• 3200A WPS/WPH/WPX-32
• 4000A WPS/WPX-40
• 5000A WPS/WPX-50
All breakers can be equipped with current limiting fuses.
WPF-08 and WPF-16 are provided with integrally mounted
fuses, while a separate fuse carriage is required for WPS-20,
™
Low WPS-32, WPS-40, and WPS-50 type breakers.
Low voltage circuit breakers rated 800/1600/2000 amps can
be stacked in four-high combinations resulting in reduced
floor space requirements. The 11-gauge, bolted modular-
designed steel frame permits flexibility in arrangements of
breakers and associated components.
AKD-10 switchgear houses low voltage power circuit breakers,
instrumentation, and other auxiliary circuit protective devices
in single or multiple source configurations. AKD-10 switchgear
can be applied either as a power distribution unit or as part
of a unit substation in indoor or outdoor construction.
AKD-10 switchgear is manufactured in GE's ISO 9002 certified
facility in Burlington, Iowa. It complies with ANSI standards
C37.20.1 and NEMA SG-5, and it is UL listed to standard
1558, file no. E76012. The switchgear has been conformance
tested according to ANSI C37.51. AKD-10 switchgear can
also be labeled per CSA standard C22.2.
ANSI standards require that switchgear operates at the rat-
ings of devices installed. Switchgear short circuit ratings are
based on two 30-cycle withstand tests with 15-second interval,
performed at 15% power factor and 635 Vac maximum. For
switchboards, a single 3-cycle withstand test at 20% power
factor and 600 Vac maximum is performed.
General Electric's AKD-10 Low voltage switchgear can help
you meet today's challenges for greater productivity,
increased operator safety and improved equipment reliability
and maintainability.
3