UPS INSTALLATION PLAN AND UNPACKING
Eaton
Power Xpert 9395P-600 (380V-600V) UPS Installation and Operation Manual
S
P-164000710 Rev 1
www.eaton.com/powerquality
3-44
3.2.7
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:
S
All distributed bypass UPS rectifier inputs must come from one source and all
bypass input feeds must come from one source.
S
All UPSs in the distributed bypass system must contain the same number of
UPMs. Mixed UPS kVA ratings are not permitted.
S
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 3‐6 to Table 3‐17.
S
The Eaton 9395P-600 600V and 480V units are designed for operation on a
grounded-wye source of supply. There is no additional connection point for a
neutral conductor. The output of these UPSs will not directly support phase to
neutral loads.
S
MOBs with dual auxiliary contacts are to be provided by the customer. Table 3‐29
lists the recommended rating for the MOBs.
The tie cabinet is provided by the customer and 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.
S
See Figure 4‐13 for Distributed Bypass Wiring Length.
3.3
Inspecting and Unpacking the UPS Cabinets
The UPS sections are palleted separately for shipping. The sections are shipped
bolted to a wooden pallet and protected with outer protective packaging material.
W
A
R
N
I
N
G
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.
A
V
E
R
T
I
S
S
E
M
E
N
T
!
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.
