Allen-Bradley CENTERLINE 2100, Руководство по установке, Страница: 82 / 136

82 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 7 Final Checklist Before Energizing
f. Check field wired connections made to the MCC for agreement with
wiring diagrams and verify that proper spacings between adjacent
phases and/or phases to ground are being used. Refer to page
91 for
the minimum electrical spacing requirements.
8. Check that the voltage and horsepower ratings on the motor correspond
with the MCC unit ratings.
9. Check that the overload relays or heater elements are selected, installed
and/or adjusted to relative full load current shown on the motor rating
nameplate.
10. For applications requiring power fuses, install the fuses in the fusible
switches in accordance with the NEC application requirements.
Refer to CENTERLINE Motor Control Centers Power Fuses Product
Data,
publication 2100-TD003 for fuse information. Do not apply
grease or NO-OX-ID to fuse ferrules. All fuses must be completely
inserted in the fuse clips. Recommended torque values for fuse clamp
screws can be found on the unit wiring diagram. Verify that all fuses fit
each application.
11. For circuit breaker applications, verify that the circuit breakers are in
accordance with NEC application requirements, and have correct
ampacity and trip settings.
Refer to MCC Instantaneous Trip Motor Circuit Protectors (MCP) in
Combination NEMA Starter, Soft Starter (SMC), and Variable
Frequency AC Drive Units Technical Data,
publication 2100-TD001 ,
and MCC Inverse Time Circuit Breakers in Combination NEMA
Starter, Soft Starter (SMC), and Variable Frequency AC Drive Units
Technical Data,
2100-TD002 for circuit breaker information in MCC
units.
12. Refer to the device instruction sheets or manuals supplied with the
MCC for specific start-up guidance. Component devices in MCC units
such as transfer switches, PFCCs, transducers, motor protectors, line
monitors, over and under-voltage relays, and motor windings heaters can
require unique start-up procedures. Set and verify adjustable current,
voltage, and other settings, according to device instructions or wiring
diagrams.
IMPORTANT High efficiency motors can have higher locked rotor and inrush
currents. Therefore, higher magnetic trip settings, than those
required for equivalent standard motors, can be required.