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Harmonics & Flicker Calibrator
The HFC-III calibrator can produce precisely defined harmonics and Flicker patterns.
Produce exact harmonic waveforms and spectra
The HFC-III has the capability to turn the current flow in a precisely know purely resistive load ON and OFF at user defined phase angles. The HFC-III functional diagram is shown in the above schematic (the HFC-III is the Load unit). A current flow pattern as shown below to the left (blue trace) with known start-stop phase angles has a precisely defined harmonics pattern. A number of tests, following the requirements of IEC TR 61000-4-37 and IEC TR 61000-4-38 are pre-defined and run in minutes. CNS uses the HFC-III for all detailed (accredited) calibrations.
CNS Inc.
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Calibrate systems in accordance with IEC TR 61000-4-37 and IEC TR 61000-4-38
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HFC-III Harmonics & Flicker Calibrator
Download the HFC-III data sheet
Download the harmonics calculation spreadsheet