Ac Wiring - YASKAWA PVS-500 User Manual

3.3 AC Wiring

All AC Wiring is completed within the ACC-1500-500 that is premounted to the PVS-500 rack.
The ACC1500-50 AC Combiner enclosure is rated Type 3R and will maintain this rating when
the user follows appropriate installation methods.
STEP 1: Confirm that all wiring and associated components are de-energized
 Confirm that the AC switch on the AC Combiner is in the "Off" position.
 Confirm that the AC switch on the XGI 1500 inverters (on the rack with other
equipment in the PVS-500 DC-Coupled Storage system) are in the "off" position (Fig
4.1).
 Confirm there is no voltage at the terminals for the XGI 1500 inverters' AC output
conductors in the ACC1500-500 AC Combiner.
Rotate the XGI 1500 Inverter AC Disconnect to the "Off" position
STEP 2: Prepare the Enclosure for Conduits
 Note the target area for conduit connections for the combined AC Output Circuit, on
the bottom face of the ACC1500-500 AC Combiner, as shown in Figure 4.2. Only
the shaded areas indicated should be used.
 Add the holes for the conduit and fittings. The AC Combiner provides adequate
space for 2" – 3" conduits for the 3-phase 600VAC conductors.
 Remove all metal shavings and debris from the inside of the AC Combiner.
Remove all metal shavings and debris from the inside of the ACC1500-500
AC Combiner enclosure.
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