GE AKD-10 Application Manual page 62

Protection and control
Automatic throwover equipment shall be provided to transfer
a load bus to an alternate source [immediately/ with a time
delay] after detection of an abnormal condition on the normal
source. Return to normal shall be [manual/ automatic with
time delay]. The transfer scheme shall include [two main
breakers and one tie breaker in a 3-breaker system/the normal
main breaker and the emergency main in a 2-breaker system].
<Transfer logic shall be incorporated into a programmable
logic controller mounted in the switchgear. When ac control
power is derived within the switchgear, a "ride through" power
supply shall be provided with the PLC so that the programs
are executed without interruption during an undervoltage
condition.> (Refer to "Automatic Transfer Equipment"
description on page 31 for more details.)
Miscellaneous
<A portable breaker lifting device shall be provided.> <A
portable static full function test set to check the time current
characteristics of the trip unit shall be provided.>
<Provide infrared scanning windows in the rear covers of
switchgear sections to facilitate the use of an IR camera for
purposes of thermal scanning cable terminations. The IR
windows shall be an IR "transparent" mesh for indoor NEMA
1 applications or an IR crystal window for outdoor NEMA 3R
applications. IR windows shall have a gasketed cover plate
secured with tamper-resistant hardware.>
<Provide a remote racking device to allow movement of the
drawout circuit breaker between the CONNECT and DISCON-
NECT positions from a distance of up to 30 feet from the
front of the switchgear. The remote racking device shall be
powered from a 120 volt AC source and shall attached to
the front of the circuit breaker or to the circuit breaker
frame. Attaching the remote racking device shall not require
the breaker cubicle door to be opened. Drawout operation of
the circuit breaker with the remote racking device shall be
accomplished with the breaker cubicle door closed and
latched.>
Documentation
Standard print package shall include front view, floor plan,
single-line diagram, installation diagram, elementary diagram
showing 3-line power circuit, metering and control circuits,
switchgear internal wiring diagrams, and equipment bill of
material.
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