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