Figure 6-20. Typical Distributed Bypass System -Continuous Static Switch, 2+1 And 3+0 Configurations - Eaton Power Xpert 9395 Installation And Operation Manual

Understanding UPS Operation
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 supplied 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 Figure 6‐5.

Figure 6-20. Typical Distributed Bypass System -Continuous Static Switch, 2+1 and 3+0 Configurations

®
6-28 Eaton Power Xpert
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
®
9395P-300 (300kVA, 300kW) UPS Installation and Operation Manual P-164000563—Rev 04 www.eaton.com/powerquality
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
MOB 1
MOB 2
MOB 3
E
AC Output to
Critical Load