UNDERSTANDING UPS OPERATION
EATON Powerware® 9395 UPS (1000–1100 kVA) Installation and Operation Manual S 164201764 Rev 1 www.powerware.com 6−19
Battery Breaker
Battery
Converter
Inverter
K3
Fuse
Rectifier
K1
K2
Fuse
Fuse
Fuse
E6
E7
E8
E12
K5
Static
Switch
Fuse
CB4
E1
E2
E3
CB1
(optional)
UPS 1
A B
TIE
CABINET
(Optional)
E
AC Output to
Critical Load
E4. E5
BATTERY SYSTEM
MOB 1
MOB 2
MOB 3
(Not supplied
with the UPS)
C
E9,
E10,
E11,
E12
D
Battery Breaker
Battery
Converter
Inverter
K3
Fuse
Rectifier
K1
K2
Fuse
Fuse
Fuse
E6
E7
E8
E12
K5
Static
Switch
Fuse
CB4
E1
E2
E3
CB1
(optional)
UPS 2
A B
E4. E5
BATTERY SYSTEM
(Not supplied
with the UPS)
C
E9,
E10,
E11,
E12
D
Battery Breaker
Battery
Converter
Inverter
K3
Fuse
Rectifier
K1
K2
Fuse
Fuse
Fuse
E6
E7
E8
E12
K5
Static
Switch
Fuse
CB4
E1
E2
E3
CB1
(optional)

UPS 3

A B
E4. E5
BATTERY SYSTEM
(Not supplied
with the UPS)
C
E9,
E10,
E11,
E12
D
*
*****
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 Figure 6-5 through Figure 6-8 starting on page 6−7.
NOTE If the load requires a neutral, a bypass source neutral must be provided. If the load does not require a neutral and there is no neutral
conductor connected at the bypass input, a neutral to ground bonding jumper must be installed. DO NOT install both a source neutral and a bonding jumper.
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
*

Figure 6-14. Typical Distributed Bypass System (2+1 and 3+0 Configurations)