Harmonic Measurement Function
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Harmonic content: this list includes all harmonic parameters of each harmonic,
including voltage, harmonic distortion factor of voltage and phase.
Measurement parameters are defined as follows:
Phase difference of k
th
order
harmonic voltage and
harmonic current
Harmonic
distortion
factor of
voltage
Harmonic number list: the signal data of 0-50 harmonic(s) will be shown in the
LIST. You can press the Up and Down key to display the hidden rows, i.e.
hidden data of each harmonic. In this case, when the row scrolling bar is
operated, the current page is displayed in the high-brightness green bar.
7.2 Setting of Harmonic Measurement Configuration
Distortion factor calculation formula:
The following two formulas can be selected for calculation of the distortion
factor.
⚫ %r: using all harmonic measurement data from the minimum harmonic
order (0
th
) to the maximum harmonic order (within the upper limit of
analysis orders) as the denominator.
⚫ %f: using the data of fundamental wave (1-order) components as the
denominator.
The distortion factor calculation formulas and methods of different
measurement functions are as follows:
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