Matthew_B
asked on
UPS Load Formula
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?
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?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Thank you for all the help, it was GREAT!
ASKER
How close should I get to the limit of watts. What I mean is, say I have enough electronics that pull 775 watts and the backup is 800 watts. Is an 800 watt too small, and how large of a buffer should I have. I do not need the PCs to stay on for very long, because the UPS are for blinking lights, brown outs, etc.