Thd Measurement Of Total Harmonic Distortion; Thd Display Screen (3U) - AEMC 8335 Power Pad User Manual

5.3.2 THD Measurement of Total Harmonic Distortion

The THD sub-menu displays the waveforms over a period of the measured signals
and the total harmonic distortion rates for voltage and current.

5.3.2.1 THD Display Screen (3U)

This screen displays the phase-to-phase voltage waveforms for one period and
the total harmonic distortion values.
1
Item Function
Instantaneous value cursor; change values with the cursor using the ◄ and ► buttons
1
2 Harmonic distortion rate for each curve
Instantaneous value of the signals at the intersection of the cursor and the curves
t: time relative to the start of the period (expressed in milliseconds)
3 U1: instantaneous phase-to-phase voltage between phases 1 and 2 (U
U2: instantaneous phase-to-phase voltage between phases 2 and 3 (U
U3: instantaneous phase-to-phase voltage between phases 3 and 1 (U
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