Understanding UPS Operation
5-10
Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4
www.eaton.com/powerquality
Figure 5-9. Eaton 93PM-50-2 UPS System Oneline with External Battery
Optional Single-Feed
Jumper
E4, E5
E1, E2, E3
E6, E7, E8, E12
Parallel CAN
Mini-Slot
Interface
Interface
Board
Pull Chain
Remote EPO
AC Input to
Bypass 4 Wire
A-B-C Rotation
AC Input to UPS
Rectifier 3 Wire
A-B-C Rotation
A
B
AC Output to
Critical Load
D
UPS CABINET
E9,
E10,
E11,
E12
Bypass
Switchgear
Static
Switch
Fuse
UPM 2
Battery
Switchgear
Battery
Converter
Fuse
Rectifier
Fuse
Rectifier
Switchgear
Fuse
Inverter
Inverter
Switchgear
CB1 Input
Breaker
NOTE
Callout letters
A
,
B, and D
map to Table 3-4.
Battery
Breaker
(Not supplied with the UPS)
C
EXTERNAL BATTERY
CABINET
UPM 1
Battery
Switchgear
Battery
Converter
Fuse
Rectifier
Fuse
Rectifier
Switchgear
Fuse
Inverter
Inverter
Switchgear
Summary of Contents for 93PM UPS
Page 1: ...Eaton 93PM UPS 20 50 kW 480V Four Wire 50 kW Frame Installation and Operation Manual...
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