{"id":14105,"date":"2023-09-24T14:25:15","date_gmt":"2023-09-24T14:25:15","guid":{"rendered":"https:\/\/staging.rayzeek.com\/?p=14105"},"modified":"2023-12-26T08:44:13","modified_gmt":"2023-12-26T08:44:13","slug":"what-is-crest-factor","status":"publish","type":"post","link":"https:\/\/staging.rayzeek.com\/uk\/glossary\/what-is-crest-factor\/","title":{"rendered":"What is Crest Factor"},"content":{"rendered":"

What is Crest Factor<\/h2>\n\n\n

Crest factor is the ratio between the peak value and the root mean square (RMS) value of a current or voltage signal. It is a measurement instrument specification that describes the size of the dynamic range of a waveform or signal. Crest Factor is used to indicate the quality of an input signal and can be a measure of the peak-to-RMS ratio.<\/p>\n\n\n\n

In the lighting industry, different types of loads exhibit different current waveforms, which can have varying crest factors. Resistive loads, such as heaters and incandescent lights, have nearly sinusoidal current waveforms with a crest factor near 1.4. Power factor corrected loads, like electronic lighting ballasts and computer power supplies, typically have crest factors ranging from 1.4 to 1.5. Nonlinear loads, such as battery chargers and VSD motor controls, can have crest factors ranging from 2.0 to 3.0 or even higher.<\/p>\n

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