Harmonic Measurement Function
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Introduction to harmonic information
⚫ Harmonic bar chart screen
When “CHART” is selected in the harmonic measurement screen, the bar
chart of harmonic measurement results will be displayed. The bar chart is
used to show the percentage of each harmonic measurement. Harmonics
can be displayed in full sequence, odd sequence and even sequence by
options. The bar chart shown below is harmonics in full sequence.
Technical terms of explanation:
THD value: the total harmonic parameters include the total harmonic
distortion factor (THD) and total harmonic content.
Parameters of single harmonic measurement include the frequency,
harmonic content, harmonic distortion factor and phase of each harmonic.
The user can rotate the knob to select each harmonic to be displayed. The
selected harmonic will be displayed in red in the bar chart.
⚫ Harmonic list
When “LIST” is selected in the harmonic measurement mode, the list of
harmonic measurement results will be displayed, including the voltage,
phase and voltage harmonic distortion factor (UTHD) of each harmonic.
Parameter of
each harmonic
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