UPS systems explained online

Glossary of uninterruptible power supply terminology includes information designed to help readers understand UPS manufacturers' specifications.

The UPSonNet website features an extensive and comprehensive glossary of uninterruptible power supply terminology.

This has now been extended to include information designed to help readers understand UPS manufacturers' specifications.

For instance, in addition to providing the definition of UPS efficiency, the glossary also explains that the efficiency of a standby or line-interactive UPS is generally between 95% and 98%, whereas the efficiency of online dual conversion systems falls between 90% and 94%.

In some cases, the glossary aims to provide information that may cause the reader to explore implications behind the product stated term.

For example, UPS manufacturers specify their products' audible noise figures in dBA units.

The UPSonNet glossary defines the meaning of the unit, explains that small UPS systems generally exhibit a noise level of less than 55dBA, which is relatively quiet, whereas high-power UPSs (above 60kVA) may have a noise figure of about 65dBA, which is similar to the noise level of a busy main road.

Other recent glossary updates include terms from the power protection and power quality fields.

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