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Siemens SICAM Q80 System Manual page 128

Power quality recorder
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128
SICAM Q80 7KG8080
5.1.5.11 Harmonics and interharmonics
Measurement data list
Contains THD and all harmonics 1 to 50
Under Maxima, an overview of the maxima of all harmonics can be displayed for each conductor monitored.
Note that this doesn't include the fundamental frequency, since it is usually much greater and the harmonic
components would barely be visible in comparison.
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
Plot of THD over time and as a histogram

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