XPRT-6kVA, XPRT-10kVA USER’S MANUAL
UNINTERRUPTIBLE POWER SUPPLY (UPS)
Xtreme Power Conversion® (XPC) Corporation (Rev 2/7/13)
Page 11
Double Conversion On-Line Technology
A double conversion on-line technology UPS provides completely isolated, clean, uninterrupted single-
phase power to your critical systems, while maintaining the batteries for their maximum potential. In
the event that the power failure lasts longer than the UPS backup time, the UPS will shut down avoiding
battery damage. When the input AC voltage returns, the UPS will automatically return online to
recharge the batteries.
As shown in fig. 1 block diagram:
•
An input filter reduces transients on the incoming utility.
•
To maintain full battery charge, the AC input power is rectified and regulated in the rectifier
feeding power to the battery converter and inverter.
•
DC power is converted to AC in the inverter, passing it on to the load.
•
Power is maintained from the battery during a power failure.
•
The converter increases voltage appropriately for the inverter.
FIG. 1 - BLOCK DIAGRAM
