90 Publication 2100-IN012C-EN-P - April 2009
Chapter 8 Energizing the Equipment
6. Energize the main devices followed by the feeder devices and
the branch circuit devices.
Always energize from the source of the system, working towards
the loads.
7. After all of the disconnects have been closed, loads such as
lighting circuits, motor starters, and contactors may be
energized.
a. When power factor correction capacitors are energized with
the motor windings and the start-up procedure requires that
the respective motors be jogged or inched, temporarily
disconnect the power factor correction capacitors.
For more information on power factor capacitors and MCC
units, refer to the Power Factor Correction Capacitors for
Bulletin 2100 Motor Control Center Starter Units Application
Techniques, publication 2100-AT001
.
b. Verify that any acceleration times are within application
specifications.
Excessive starting currents and acceleration times may cause inverse
time circuit breakers, power fuses, overload relays, and other
components to overheat and shutdown the equipment.
ATTENTION
Disconnecting device handles should be operated with a
firm, direct motion and should not be ‘teased’ into the
closed (ON/I) position.
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