Battery Mode; Figure 5-4. Path Of Current Through The Ups In Battery Mode - Eaton 93E MK2 Installation And Operation Manual

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 power.
Figure 5-4 shows the path of electrical power through the UPS system when operating in Battery mode.
Bypass Input
Rectifier
Input Switch
Input
44 Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation
Bypass Switch (Optional Dual Input)
Rectifier
Input
Relay
Relay
Switch
Closed
Open
Figure 5-4. Path of Current Through the UPS in standard Battery Mode
Static
Switch
Inverter
Battery
Converter
Battery
Relay
Battery
Output
Output
Relay
Main Power Flow
Trickle Current
Energized
De-Energized