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UNDERSTANDING UPS OPERATION
EATON Powerware
®
9395 UPS (650–825 kVA) Installation and Operation Manual S 164201725 Rev 2 www.powerware.com
6−6
Static
Switch
K5
Rectifier Inverter
K1 K3
Battery
Converter
Battery
Battery
Breaker
Main Power Flow
Trickle Current
Energized
De−Energized
Closed
Open
Breakers Contactors
K2
Bypass
Breaker
(CB4)
Bypass Input
Rectifier
Input
Output
Input
Breaker
(CB1
NOTE On an UPS configured as an IOM, the bypass input, static switch, bypass breaker (CB4), and K5 are not present.
Figure 6-4. Path of Current Through the UPS in Battery Mode