Uninterruptible Power Supply System

Businesses today invest large sums of money in their IT infrastructure, as well as the power required to keep it functioning. Uninterruptible power supplies (UPS) are an extremely important part of the electrical infrastructure where high levels of power quality and reliability are required. This chapter discusses basics of UPS designs, typical applications where UPS are most commonly used, considerations for UPS selection, and other components or options that are an important part of purchasing and deploying a UPS system. With proper servicing and a stable environment, a well‐made UPS can operate safely and reliably for as long as 20 years. Communication software can not only provide real‐time notification of UPS status but also let one assign automatic actions to perform in case of a power event. This is extremely useful if one's system operates continuously without users being present to manually shut down affected equipment.