Figure 2. Main elements of the UPS system
1
Battery breaker
11
Digital metering
2
Battery
12
AC input to bypass
3
Battery converter power module
13
Bypass input switch (BIS) (optional
100-120 kVA)
4
AC input to rectifier/charger
14
Backfeed contactor
5
Switch (optional 100-120 kVA)
15
Static switch
6
Input contactor
16
Output switch (optional 100-120 kVA)
7
Rectifier
17
AC output to critical load
8
Inverter
18
Maintenance bypass switch (MBS)
(optional 100-120 kVA)
9
Output contactor
19
UPS cabinet
10
Power module
The emergency bypass consists of a continuous static switch, and an internal
backfeed contactor is installed to all 93E generation 2 units sold in the EMEA
market area. The backfeed protection is located in series with the static switch.
The static switch is armed and ready during normal operation.
3.2 Single UPS operating modes
A single UPS operates independently to support an applied load from the
inverter, providing conditioned and uninterruptible AC power to the critical load.
During an outage, the inverter continues to operate, supporting power to the
Eaton 93E Generation 2 UPS 100-200 kVA
(380/400/415V)
User's and installation guide
©
Eaton Corporation plc 2019. All rights reserved.
Revision: 002
Document ID: P-164000848
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