Eaton 93E MK2 - Battery Mode; Figure 5-4. Path of Current through the UPS in Battery Mode

Battery
5.2.5 Battery Mode
The UPS automatically transfers to Battery mode if a utility power outage occurs, or if the utility power does
not conform to specified parameters. In Battery mode, the battery provides emergency DC power that the
inverter converts to AC po w er .
Figure 5-4
shows the path of electrical power through the UPS system when operating in Battery mode.
Bypass Input
Bypass Switch (Optional Dual Input)
Static
Rectifier
Input
Input Switch
Input
Relay
Rectifier
Switch
Inverter
Output
Relay
Output
Battery
Converter
Switch
Relay
Closed
Open
Battery
Relay
Main Power Flow
Trickle Current
Energized
De-Energized
Figure 5-4. Path of Current Through the UPS in standard Battery Mode
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Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation