Ensuring a continuous supply of electrical power is vital in safety-critical environments such as hospitals, data centres, and commercial institutions, where even the shortest of duration interruption may cause significant financial losses or even endanger lives. An Uninterruptible Power Supply system is used to provide power when the main source is interrupted or even fails, it also ensures high levels of power quality. Therefore, ensuring the highest possible level of availability of a UPS system is of paramount importance. UPS manufacturers often refer to availability but what does this term actually mean?
