How long can equipment on a UPS keep running after the power goes? E-mail
How big a UPS do you have and what kind of equipment does it protect? For most typical computer workstations, one might have a UPS that was rated to keep the machine alive through a 15 minute power loss. If you need a machine to survive hours without power should probably look at a more robust power backup solution. Even if a UPS has a very small load, it must still operate it's DC (battery) to AC converter, which costs power. It leads me to guess that a 2000 VA UPS can operate it's own converter (with no extra load) for just over 8 hours. A 1250 VA UPS could run its converter for about 5.
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