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UPS INSTALLATION PLAN AND UNPACKING
3.3
Inspecting and Unpacking the UPS Cabinets
3-32
Eaton Power Xpert 9395P-1200 UPS (1200 kVA, 1200 kW) Installation and Operation Manual
3.2.5
Distributed Bypass Power Wiring Preparation
NOTE For full-rated operation of a Distributed Bypass System when in Bypass or ESS mode, the line
frequency impedance of all conduction paths must be equal when assessed from the point where the Bypass
Power Source connects to the System Switchgear to the point where the Common Load connects to the
System Switchgear.
Read and understand the following notes while planning and performing the
installation:
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All distributed bypass UPS rectifier inputs must come from one source and all
bypass input feeds must come from one source.
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All UPSs in the distributed bypass system must contain the same number of
UPMs. Mixed UPS kVA ratings are not permitted.
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Distributed bypass UPS input wiring size requirements and output wiring size
requirements from the UPSs to the tie cabinet or distribution panel are the same as
listed in Table 3‐5, Table 3-5, Table 3‐7, or Table 3‐8.
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The Eaton 9395P-1200 480V unit is designed for operation on a grounded-wye
source of supply. There is no additional connection point for a neutral conductor.
The output of this UPS will not directly support phase to neutral loads.
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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 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. MOBs
with dual auxiliary contacts are to be provided by the customer.
The UPS cabinet is divided into two sections palleted separately for shipping. The
sections are shipped bolted to wooden pallets (see Figure 3‐13 and Figure 3‐14) and
protected with outer protective packaging material.
The UPS sections are heavy (see Table 3‐1). If unpacking and unloading instructions are not closely followed,
the cabinets may tip and cause serious injury.
Les sections de l'onduleur sont lourdes (voir le Table 3‐1). Suivre attentivement les instructions de
déchargement et de déballage pour éviter de renverser les armoires, ce qui pourrait causer de graves
blessures.
W A R N I N G
A V E R T I S S E M E N T !
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P-164000500 Rev 4 www.eaton.com/powerquality
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