Chapter 4: Handling, storage, and installation
SC9000 EP medium voltage drives
IB020001EN—February 2016
www.eaton.com
17
Mounting
After the drive/lineup has been placed in position, anchor
bolts should be installed and tightened in the floor of the
enclosure. See Appendix A for diagrams showing standard
bolt locations for each frame size and provisions for
seismic-resistant mounting. For job specific mounting holes,
sizes, and weights, refer to job specific drawings supplied
with the drive. Refer to regional building codes and laws for
mounting requirements for seismic applications. It is
recommended that anchorage and support design be
completed by a structural engineer. The foundation must be
solid and level with a maximum of 1/16 inches separation at
the anchor bolt locations. The use of 1/2 inch diameter grade
5 bolts or greater is recommended. Use flat and lock washer
under nut or bolt head and torque appropriately (75 ft lb for
grade 5). When a drive/ lineup includes two or more shipping
sections, the order outline drawing will show the sequence
in which the sections are to be lined up and which shipping
splits are to be joined. A busbar splice kit (where applicable)
and a connecting hardware kit are supplied for each open
joint between sections.
Redundant blowers/pull box
If the SC9000 EP drive has redundant blowers or a pull box
for mating to an integrated control-gear lineup, they will be
shipped loose due to carrier height restrictions. The Frame A
would have one redundant blower assembly, Frame B/C
would have two redundant blower assemblies, Frame D
would have three to five redundant blower assemblies and
the Frame E would have four to five redundant blower
assemblies. These assemblies must be installed per the
instructions shipped with the job specific drawings before
commissioning the AFD.
SC9000 EP unit connection
Main bus connection
For units requiring main bus, connections to be made using
3/8-16 HHCS, flat washers, lock washers, and nut. Apply
18-25 ft-lb torque. Bus splice plates may or may not be
shipped connected to one end of the unit split
(
Figure
5
).
Figure 5. Main bus splice
Ground bus connection
Ground bus is typically linked between units/splits using a
braided flexible shunt (P/N 151B587G02). Ground bus links
will be shipped connected to one end of the split (
Figures 6
and
7
). Connections to be made using 3/8-16 HHCS with flat
and lock washer. Apply 18-25 ft-lb torque. In specific
configurations hard bus links may be used, however
hardware and torque values will be consistent.
Figure 6. Flexible ground bus link
Figure 7. Flexible ground bus link
Main bus splice between unit split
Shunt passing through opening in side sheet
Shunt pre-connected to one end of split for shipping
Summary of Contents for SC9000 EP
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