Digital Equipment HA3000, Руководство по установке

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INSTALLATION REFERENCE CHECKLISTS 1–5
1.3.3 HA32C/D/E UPS Auxiliary Cabinet
The electrician’s responsibilities during the installation of the HA32C/D/E UPS Auxiliary
Cabinet are listed below.
Check Off Function Task
Cable Entry/Exit Perform the cable knockouts and provide the fittings
and conduits for this cabinet. Right-side cable entry is
possible (Figure 4–6). Refer to the HA3000 20-80 kVA
Uninterruptible Power System Installation Drawings
(EK-HA32X-ID).
Input Conductors
(supplied by the
electrician)
Provide four power cables; three phase conductors
and a ground conductor (all of equal ampacity) if the
UPS Auxiliary Cabinet contains an input isolation
transformer. Refer to Table 4–4 for current ratings.
Refer to the UPS Auxiliary Cabinet installation
instructions in Chapter 4 when making the ac input
cable connections.
If no neutral
1
is available from the building
distribution system (for example, DELTA only service
entrance), a UPS Auxiliary Cabinet with an input
isolation transformer may be used to derive a neutral
for the UPS cabinet.
Output Conductors Connect the four output cables that are factory
installed in the UPS Auxiliary Cabinet, if the
UPS Auxiliary Cabinet contains an input isolation
transformer, to the main ac input (MAINS1) or
bypass ac input (MAINS2) and neutral busbars in
the UPS cabinet. Refer to the UPS Auxiliary Cabinet
installation instructions in Chapter 4 when making the
output cable connections.
Harmonic Filter
Connections
Connect the six cables from the UPS Auxiliary Cabinet
to the UPS cabinet if the UPS Auxiliary Cabinet
contains an input harmonic current filter. Refer
to Figure 4–13 and Figure 4–14 when making the
connections.
Control Wire
Connections
Connect the two factory installed control wires in the
UPS Auxiliary Cabinet to TB2-11 and TB2-12 in the
UPS cabinet (Figure 4–3).
1
If an HA32A-Cx cabinet is being installed, a neutral conductor is not required.