Eaton 93PM Installation And Operation Manual page 75

Pull Chain
Remote EPO
Interface Board
Fuse
Rectifier
Switchgear
Rectifier
Inverter
Inverter
Switchgear
Fuse
Battery
Converter
Battery
Switchgear
Fuse
E4, E5
Figure 5-8. UPS System Oneline with Three-Breaker Bypass
Eaton 93PM UPS (60–100 kW, 480V) Installation and Operation Manual P-164000227—Rev 2
Parallel CAN
Mini-Slot
Interface
Fuse
Rectifier
Switchgear
Rectifier
Inverter
Inverter
Switchgear
Fuse
Battery
Converter
Battery
Switchgear
Fuse
UPM 1
C
Battery
Breaker
EXTERNAL BATTERY
CABINET
(Not supplied with the UPS)
UPS Rectifier
3 Wire A-B-C
E1, E2,
E3
E1, E2,
E3
Optional
Single-Feed Jumper
E6, E7,
E8
Fuse
Bypass
Switchgear
Static
Switch
E9, E10,
E11
UPM 2
UPS CABINET
NOTE Callout letters A, B, C, and D map to Table 3-4.
Understanding UPS Operation
AC Input to
AC Input to
Bypass 3 Wire
A-B-C Rotation
Rotation
B
A
E6, E7,
E8
Bypass Input
Breaker
Maintenance
Bypass Switch
Maintenance
Isolation Switch
E9, E10,
E11
THREE-BREAKER BYPASS CABINET
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AC Output to
Critical Load
D
5-9