Santak UPS uninterruptible power supply battery discharge time
After the mains power went out, Santak UPS power supplies rely on battery energy storage to supply power to the load. Standard UPS models have built-in batteries and can typically continue supplying power for several minutes to tens of minutes after a power outage; while long-duration UPS models are equipped with external battery packs to meet the needs of users for continued power supply during long-term power outages. Generally, long-duration UPS models can last for several hours or more at full load.
Battery power supply time is mainly affected by factors such as load size, battery capacity, ambient temperature, and battery discharge cut-off voltage. Generally, the battery power supply time of a computer UPS can be determined by first calculating the battery discharge current and then looking up the discharge time based on the battery discharge curve. The battery discharge current can be calculated using the following empirical formula:
Discharge current = UPS capacity (VA) x power factor / (average battery discharge voltage x efficiency)
To calculate the battery discharge time under actual load, simply replace the UPS capacity with the actual load capacity.
The backup time of a typical long-duration UPS is mainly limited by factors such as battery cost, installation space, and battery recharge time. In areas with poor power conditions and frequent power outages, a combination of UPS and generator power supply is generally used. During a power outage, the UPS is initially powered by the battery for a period. If the outage is prolonged, a backup generator can be started to continue supplying power to the Santak UPS . Once mains power is restored, the system switches back to mains power.