How To Calculate Ups Capacity Required. This means the ups has a “power factor” of 0.9. When choosing a ups, be sure that the total va requirement of supported equipment does not exceed the va.
UPS Sizing Calculator from www.refurbups.com
Ups system internal power loss as well as the additional power required for battery charging. Add the va subtotals together. Take, for example, a 100 kva ups with a 0.9 pf, or 90 kw capacity.
How To Size A Ups.
Figure out how much power you are consuming. This means that the formula for watts = volts x amps x power factor. This explains why one 2,000 va ups can supply 2,000 watts and the other cheaper 2,000 va ups supplies only 1,200 watts.
Use The Grand Total To Select A Ups.
Because ups systems are rated by va or kva ratings, this may require a conversion from w to va, which can be calculated by dividing the power consumption (w) by the power factor. How do i calculate ups required capacity? How do i calculate ups required capacity?
Use The Grand Total To Select A Ups.
Required runtime = 1.5 hours; Multiply the total by 1.2 to get the grand total. Thank you for pointing this out.
List All Equipment To Be Protected By The Ups.
For example, if the total required capacity/load is 200 w, it is better to choose an ups with a capacity of 250 w (250 w x 0.8 = 200 w) or so. Add the va subtotals together. Multiply the total by 1.2 to get the grand total.
Multiply Amps By Volts To Determine Voltamps (Va).
That figure is the maximum size in va or. This means the ups has a “power factor” of 0.9. Ups are rarely run at the operating points where their advertised efficiency is provided.
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