Data Center (IDC) calculation method for UPS battery capacity Configuration _ Data Center

UPS Battery Configuration calculation method:

(UPS capacity <VA>) x power factor X backup time/start voltage =ah< >

which

The start-up voltage can be consulted by the manufacturer. Typically 384V or 240V (single-phase or three-phase).

The number of batteries per group is calculated according to the starting voltage and the voltage of each battery. That is, a group of one-hour batteries = starting voltage (such as 384V)/single cell volt (e.g. 12V)

You can generally calculate a group of one-hour battery ah number,

such as 6KVA ups, single-phase, power factor 0.7, then 6000*0.7/240=17.5 is a group of one-hour battery ah number.

If the total is 24AH, that is 24/17.5=1.37 hours.

Similarly, if you need 2.17 hours, the total battery ah number equals 2.17 * 17.5 = 38AH.