UPS Load Formula
Posted on 2011-10-27
OK, I have been looking to replace a Tripp-Lite UPS that is going out but I am not a big fan of the Tripp-Lite backup we have purchased so I am planning on switching to the APC. The problem I am having is the load requirements.
The Tripp-Lite was a 1500va/900Watts UPS and the APC I am looking at is a 1500va/865Watts. Those 35 watts should not be a problem for my system but I want to get some more information or a formula that is used to figure out what size is enough. Since I have the va and watts which one am I looking for as a unit of measurement to make sure I have enough and not too much?
Example, one of our old PC's is has a 350w power supply and two dell monitors. The Dell web site says the monitors have a power consumption of 65w Max and 32 Typical. Can I just add the 350 with 65 twice to equal 480 and that's it? I also have a few speakers, etc but I do not have their power consumption on me at this time. When to the Va come into play?