Siemens DTU3005-B Especificaciones descargar pdf (Pagina 15)

Crest Factor Crest factor is a term used to describe the ratio of the peak

value to the effective (RMS) value. A pure sinusoidal waveform

has a crest factor of 1.41. A crest factor other than 1.41 indicates

distortion in the AC waveform. The crest factor can be greater or

lower than 1.41, depending on the distortion. High current

peaks, for example, can cause the crest factor to be higher.

Measuring the crest factor is useful in determining the purity of

a sine wave.

Conversion Chart When using different types of test equipment it may be

necessary to convert from one AC value to another. A voltmeter,

for example, may be calibrated to read the RMS value of

voltage. For purpose of circuit design, the insulation of a

conductor must be designed to withstand the peak value, not

just the effective value.

To Convert To Multiply By

Peak-to-Peak Peak 0.5

Peak Peak-to-Peak 2

Peak RMS 0.707

Peak Average 0.637

RMS Peak 1.414

RMS Average 0.9

Average Peak 1.567

Average RMS 1.111

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Siemens DTU3005-B Especificaciones Pagina 15