3.1 Looking inside the UPS system
Figure 2. Looking inside the 15/20 kW standard and C-model frames
Figure 3. Looking inside the 30/40 kW frame
1.
Control panel
6.
Input switch (optional in some regions)
2.
Door latch
7.
Battery breaker for internal batteries *
3.
Power module (UPM)
8.
Maintenance bypass switch (optional)
4.
Internal battery (not included in the C-
model)
*
In the C-model for external batteries
5.
Communications area
The system level static bypass in the UPS cabinet determines the attainable
output power of the UPS. The static bypass line consists of a static switch and a
backfeed protection isolation device connected in series. In addition, there is a
system level control unit that constantly monitors the power delivered through
the bypass line or to the input of the UPS. Transfers to static bypass are
Eaton 91PS/93PS UPS 8–40 kW
User's and installation guide
©
Eaton Corporation plc 2018. All rights reserved.
Revision: 005
Document ID: P-164000493
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