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satya
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 « on: March 02, 2010, 12:28:05 12:28 »

hi

what is the Crest Factor  in a ups ?

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satya
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explorer
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 « Reply #1 on: March 02, 2010, 05:06:45 17:06 »

•The crest factor or peak-to-average ratio (PAR) or peak-to-average power ratio (PAPR) is a measurement of a waveform, calculated from the peak ...
en.wikipedia.org/wiki/Crest_factor

•This is the ratio between the peak current and the average current required by the load. Computers normally exhibit a crest factor of 2 to 3 ...
www.noahtec.com/power-glossary-terms.htm

•the ratio of the peak voltage to rms voltage of a signal, which is given by the following formula: For a sine wave the crest factor is 1.414, for ...
zone.ni.com/devzone/cda/tut/p/id/4439

•In an AC circuit, Crest Factor is the mathematical ratio of the peak to RMS values of a waveform. Crest factor is sometimes used for describing ...
www.powerstream.com/glossary.html

•The ratio of the non-linear peak current to the true RMS current. A sine wave has a crest value of 1.4142. For switchmode power supplies this ratio ranges from 2 to 4.
www.powersource.net/glossary.htm

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Triodethom
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