If i have a PC usage 100Watt and i want to have a UPS that can provide a backup time from my UPS for 1 hour?
Does any one know how do i do a manual calculation?
2007-03-21 23:53:56 · 3 answers · asked by novkhan 1 in Computers & Internet ➔ Hardware ➔ Desktops
Go to this link from APC & use the product selector calculator.
It will tell you exactly what you need :
http://apc.com/tools/ups_selector/index.cfm
regards,
Philip T
2007-03-22 04:01:37 · answer #1 · answered by Philip T 7 · 0⤊ 0⤋
The UPS ought to be rated in KW/hrs. For one that's rated at 1K Watt/hr, that's 1000 Watts for an hour, or 100 Watts for 10 hours, or 500 Watts for 2 hours, you see the pattern hopefully.
Rating of UPS in KW/hr x 1000 / watt usage = hours of operation
As an example, if my UPS is rated at 2Kwatt/hr and my TV uses 150Watts, then it's 2 x 1000 / 150 = 13.33 hours of operation
2007-03-22 00:08:00 · answer #2 · answered by 1000 Man Embassy 5 · 0⤊ 0⤋
UPS have quick delivery
2007-03-21 23:56:23 · answer #3 · answered by Anonymous · 0⤊ 1⤋