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DEH-41473
Section 8. Operating the Switchgear
General
DANGER: Electrical arc flash hazard. Personal
protection equipment required. Turn off power to the
equipment before working inside.
WARNING: The breaker compartment door must be
closed and latched to maintain the integrity of the arc
resistant enclosure. The breaker compartment door should
not be opened when the circuit breaker is closed and in the
connected position when the equipment is energized.
WARNING: When a circuit breaker is removed from its
compartment. The future cassette barrier and the future
breaker door cover must be installed and the circuit
breaker compartment door closed and latched to maintain
the integrity of the arc resistant enclosure.
WARNING: The EntelliGuard racking handle must be
returned to its compartment to maintain the integrity of the
arc resistant enclosure.
WARNING: Either the key interlock(s) or the metallic key
interlock plug(s) must be installed to maintain the integrity
of the arc resistant enclosure.
WARNING: Either the position switch or the metallic
position switch cover must be installed to maintain the
integrity of the arc resistant enclosure.
CAUTION: If the dead front gasket of the breaker door
gasket is damaged, these components should be replaced
to ensure the integrity of the arc resistant enclosure.
Included below are abbreviated operating instructions for
EntelliGuard circuit breakers. Before activation of the circuit
breakers or operation of the switchgear equipment,
thoroughly read, and be familiar with the circuit breaker
manuals which will be supplied as supplementary information
to this manual. Publication number is DEH-41304 (AKD-20 AR
Only) or DEH-41526 (Entellisys AR Only).
©2016 General Electric. All rights reserved.
Courtesy of NationalSwitchgear.com
AKD-20 AR / Entellisys AR Low-voltage Switchgear
Section 8. Operating the Switchgear
Manually Operated Circuit Breakers
Closing Operation
Manually operated EntelliGuard circuit breakers are equipped
with an integral charging handle and a push button marked
CLOSE on the front of the escutcheon. The spring must be
charged first.
A complete charge is accomplished by pulling the handle
down about 90° (until it stops) ten times to fully charge the
closing springs. This will not close the breaker contacts. The
charge indicator will show CHARGED on a yellow background.
Opening Operation
A mechanically operated OPEN button mounted on the
breaker escutcheon, operates the trip shaft to open the
breaker.
The Entellisys HMI may also be used to electrically open the
breaker (Entellisys AR Only).
Electrically Operated Circuit
Breakers
Closing Operation
Electrically operated breakers may be closed by ac control
power, or dc (normally station or standby battery) control
power. Refer to the provided elementary diagrams for
information on control circuitry.
The Entellisys HMI may be used to electrically close the
breaker (Entellisys AR Only).
Opening Operation
A shunt trip device is used for electrical tripping and each
breaker can have up to two shunt trip accessories installed.
The Entellisys HMI may also be used to electrically open the
breaker (Entellisys AR Only).
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