UPS (Uninterruptible Power Supply) Systems Works Top of Form Bottom of Form UPS stands for Uninterruptible Power Supply. A UPS system is an autonomous source of alternate power that is used to supply sensitive electronic loads such as computer centers, telephone exchanges and many industrial-process control and monitoring systems. A UPS solution for sensitive electrical loads is used to provide a power interface between the utility and the sensitive loads, providing voltage that is: 1. Free of all disturbances present in utility power and in compliance with the strict tolerances required by loads. 2. Available in the event of a utility outage, within specified tolerances UPS systems satisfy requirements in 1 & 2 above in terms of power availability and quality by: 1. Supplying loads with voltage complying with strict tolerances, through use of an inverter 2. Providing an autonomo...