In this topic, you study Total Harmonic Distortion – Definition & Formula.
Total Harmonic Distortion (THD) defined as the ratio of rms value of all the harmonic voltage components to the rms value of the fundamental voltage component.
THD is a measure of waveform distortion. Lower the value of THD. lower is the amount of distortion in voltage (or current) waveform. It is the measure of closeness in shape between a waveform and its fundamental component.