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A K D - 2 0 A N D E N T E L LY S I S LO W V O LTA G E S W I TC H G E A R
63
8. Energizing the switchgear
8.1 Before energizing
Before switchgear is energized, a thorough
final check should be made using the following
checklist: Refer to section 6.5 for additional
information.
• Breakers and other operating
mechanisms exercised
• Electrical insulation resistance tested
phase-to- phase and phase-to-ground
• Relays, meters and instruments properly
connected
• Electrically operated breakers and operating
mechanisms exercised
• Ground fault protection system tested
• Adjustable trips properly set
• Field wiring secured and free of live bus
• Grounding connections made
• All debris, scrap wire, etc. removed
• All covers installed, doors closed and latched
8.2 Energizing procedures
Caution: Energizing switchgear for the first time
is potentially dangerous. Therefore, qualified
electrical personnel should be present when the
equipment is energized. If problems caused by
damage or poor installation practices have not
been detected in the checkout procedure described
previously, serious damage can result when power
is turned on.
Prudence: La première alimentation de
l'appareillage électrique présente potentiellement
un danger. Par conséquent, un électricien qualifié
doit être présent. Si des problèmes dus à des
dommages ou à une mauvaise installation n'ont pas
été détectés pendant la procédure de vérification
décrite précédemment, l'alimentation peut générer
d'importants dommages.
There should be no load on the switchgear when
it is energized.
Turn off all of the downstream loads, including
those such as motor control centers and other
devices which are remote from the switchgear.
The equipment should be energized in sequence
by starting at the source end of the system and
working toward the load end. In other words,
energize the main devices, then the feeder devices,
and then the branch-circuit devices.
Turn the devices on with a firm positive motion
(AKD-20 Only). Using the Entellisys HMI, turn on
the devices (Entellisys Only).
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