Figure 77. Typical Distributed Bypass System (2+1 And 3+0 Configurations) - Eaton Power Xpert 9395P-1100/1100 Installation And Operation Manual

Understanding UPS Operation

Figure 77. Typical Distributed Bypass System (2+1 and 3+0 Configurations)

A
– AC Input to UPS Rectifier
B
– AC Input to Bypass
C
– DC Input from Battery
D
– UPS AC Output to Tie Cabinet
E
– Output to Critical Load
*
– Overcurrent Protection provided by customer
*
NOTE This oneline does not show each UPM in the UPSs, but represents each UPS in the distributed bypass system. The internal
structure of each UPS is shown in the Single UPS System Oneline Configurations Section 6.3.
134 Eaton ®
A B
* *
E1 E6
UPS 3
E2
E7
Fuse
E3 E8
E12
CB1
(optional)
K1
Rectifier
Static
Switch
Fuse
K5
Fuse
Fuse
Inverter
K3
Battery
Converter
Fuse
K2
C
E4. E5
Battery Breaker
E9,
BATTERY SYSTEM
E10,
E11, (Not supplied
E12 with the UPS)
D
Power Xpert ® 9395P-1200 Installation and Operation Manual 164000500—Rev 11
A B
* * *
E1 E6
UPS 2
E2
E7
Fuse
E3 E8
E12
CB1
(optional)
K1
Rectifier
Static
Switch
Fuse
K5
Fuse
Fuse
Inverter
K3
Battery
Converter
Fuse
K2
C
E4. E5
Battery Breaker
E9,
BATTERY SYSTEM
E10,
E11, (Not supplied
E12 with the UPS)
D
A B
*
E1 E6
UPS 1
E2
E7
Fuse
E3 E8
E12
CB1
(optional)
K1
Rectifier
Static
Switch
Fuse
K5
Fuse
Fuse
Inverter
K3
Battery
Converter
Fuse
K2
C
E4. E5
Battery Breaker
E9,
BATTERY SYSTEM
E10,
E11, (Not supplied
E12 with the UPS)
D
TIE
CABINET
(Optional)
MOB 1
MOB 2
MOB 3
E
AC Output to
Critical Load