Eaton Power Xpert 9395 550/275, Installation And Operation Manual

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UPS System Installation
Power Xpert
TM
9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716—Rev 8 www.eaton.com/powerquality 4-5
4.3 Field Installed UPM Installation
If installing a FI-UPM, install the FI-UPM using the instructions in the Power Xpert 9395 Field Installed UPM
Mechanical Installation Manual, listed in paragraph 1.7. After the FI-UPM is installed, proceed to paragraph 4.4
if installing a battery system; otherwise, proceed to paragraph 4.5.
4.4 Battery System Installation
If installing an Eaton battery cabinet, refer to the Eaton 9395 Integrated Battery Cabinet (Model IBC-L)
Installation Manual , listed in paragraph 1.7.
If installing a customer-supplied battery system, install the battery system according to the battery and battery
system manufacturer's instructions and all applicable codes and regulations, including the NEC, Article 480.
After the battery system is installed, proceed to paragraph 4.5 if installing a distributed bypass tie cabinet;
otherwise, proceed to paragraph 4.6 to complete the wiring of the UPS.
4.5 Distributed Bypass Tie Cabinet Installation.
If installing a distributed bypass system, install the customer-supplied tie cabinet or distribution panel
according to the tie cabinet or distribution panel manufacturer's instructions and all applicable codes and
regulations, including the NEC, Article 480. After the tie cabinet is installed, proceed to paragraph 4.6 to
complete the wiring of the UPS.
In the case of parallel Distributed Bypass configurations, wiring for the common system neutral reference will
also be connected to E12 of each module and this common system neutral reference wiring will be routed to
the output switchgear cabinet and connected to an isolated / ungrounded bus which is common with the
wiring from the E12 terminal of all other paralleled modules of the Distributed Bypass system.
4.6 Installing UPS External and Battery Power Wiring
CAUTION
HIGH IMPEDANCE GROUND SOURCES - If the supply source is a high impedance ground (IT) type, the
input neutral conductor must be connected from the source of supply. If there is no output neutral
connected to the UPS, the neutral–forming transformer kit may be used instead of pulling a neutral from
the source. If the load requires a neutral, then an input neutral conductor must be pulled into the UPS. In
no circumstances shall a neutral to ground bonding jumper be installed in the UPS.
NOTE The tie cabinet must contain Module Output Breakers (MOBs) with dual auxiliary
contacts for control of the system. Without dual auxiliary MOBs, UPMs are not
allowed to go to bypass individually during servicing. All UPMs will go to bypass
instead of the just the UPM needing service, decreasing critical load protection.
With dual auxiliary MOBs, one UPM can be bypassed while the remaining UPMs
support the load as long as the remaining UPMs have the capacity to do so.
NOTE The UPS cabinet is shipped with a debris shield covering the ventilation grill on top
of the unit (see Figure 4-4). Do not remove the debris shield until installation is
complete. However, remove the shield before operating the UPS. Once the debris
shield is removed, do not place objects on the ventilation grill.
NOTE Remove the UPS cabinet top or bottom conduit landing plate to drill or punch
conduit holes (see Figure 4-4).
NOTE If the load requires a neutral, a bypass source neutral must be provided.
NOTE DO NOT install both a source neutral and a bonding jumper. See Table 3-9 for
neutral bonding jumper wire sizes. Bonding jumper must be copper wire.