UPS White Papers

Use the links below to download White Papers related to UPS

What Your IT Equipment Needs from a UPS – download pdf 535 kb

In spite of their robust design, PSUs need protection from power quality problems generated by the electric utility or arising within the facility. To operate properly, IT equipment needs a consistent source of conditioned power that meets industry specifications. Providing that consistent, conditioned power is the job of an uninterruptible power system (UPS). This white paper looks at five key attributes or requirements of power quality—as the PSU sees it—and the implications of each for UPS design and selection.

Emerging UPS Standby Power Sources – download pdf 196kb

UPS makers have long been searching for an alternative standby power technology that’s smaller, simpler and “greener” than lead acid batteries, yet no more expensive to operate. Today, that hunt just may be nearing its end. Several exciting new standby power solutions, all rapidly approaching mainstream commercial viability, appear poised to give the lead acid battery a run for its money. This white paper will explore the strengths, weaknesses and future prospects of four such technologies: Flywheels, ultracapacitors, fuel cells and lithium ion batteries.

Which UPS is Right for the Job? – download pdf 2.5mb

The latest generation of double-conversion UPSs offers unique multi-mode capabilities. The UPS operates in a very high-efficiency mode unless power conditions warrant a switch to the higher protective level typical of double-conversion mode. This white paper describes how various UPS topologies work and looks at the impact of operating mode on five key factors of UPS performance.