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Eaton 91PS/93PS UPS 8–40 kW
seamless and performed automatically by the system as needed, for example,
in case of an extended system overload.
Each UPM includes a rectifier, battery converter, inverter and independent
controls. Each UPM is able to operate and share the load independently,
despite the status of the other UPMs.
In addition, the system can have a UPS-internal maintenance bypass switch as
a factory-installed option.
Table 2: UPS configurations
UPS frame
93PS 20 kW
93PS 20 kW
C-model
93PS 40 kW
91PS 15 kW
91PS 15 kW
C-model
91PS 30 kW
Hazardous voltage can exist in the battery circuit until disconnected from
external battery source.
In the 30/40 kW frame, the two UPMs are paralleled internally.
The rectifier input switch and battery breaker are available as standard for all the
models. The internal MBS is available as option for all the models.
If utility power is interrupted or falls outside the parameters specified in Chapter
9
, the UPS uses a backup battery supply to maintain power to the critical load
for a specified period of time or until the utility power returns. For extended
power outages, the UPS allows you to either transfer to an alternative power
system (such as a generator) or shut down your critical load in an orderly
manner. The UPS bypass consists of a continuous-duty static switch and a
backfeed protection isolation device. All the models also include an internal fuse
in the bypass line. The backfeed protection and bypass fuse are located in
series with the static switch.
©
Eaton Corporation plc 2018. All rights reserved.
Number of UPMs
1
1
1 or 2
1
1
1 or 2
WARNING
Revision: 005
User's and installation guide
Static switch [kW]
20
20
40
15
15
30
Document ID: P-164000493
Internal battery
Yes
No
Yes
Yes
No
Yes
18 (117)
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