Figure 5-5. Ups System Oneline - Eaton 93E Operation Manual

AC Input to
UPS Rectifier
4 Wire A-B-C
Bypass 4 Wire
Rotation
A-B-C Rotation
A
L1, L2,
Internal Single-Feed
L3, N
Jumper
(Optional)
Input Breaker
NOTE Callout letters A,B,C,and Dmap to Table 3-5.

Figure 5-5. UPS System Oneline

AC Input to
B
L1, L2,
L3, N
(Optional)
Backfeed Contactor
Eaton 93E UPS (300/400 kVA, 380/400/415V) Installation and Operation Manual
Pull Chain
REPO
Interface Board
Static
Switch
Input Contactor
Fuse
Rectifier
Inverter
Output
Contactor
Fuse
Battery
Converter
Battery Contactor
Fuse
C
Battery
Breaker
EXTERNAL BATTERY
CABINET
Understanding UPS Operation
L1, L2,
L3, N
D
AC Output to
Critical Load
UPS
CABINET
5-7