Understanding Power Factor, Crest Factor, and Surge Factor - APC
ratio of the peak value of a sine wave to its RMS value). Computers and IT
equipment with. Power Factor Corrected power supplies exhibit a crest factor of
1.4. Personal computers and stackable hubs exhibit a crest factor of 2 to 3. When
a load exhibits a crest factor of more than 1.4, the source (UPS) must supply the
peak.
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