Harmonic distortion occurs in which types of waveforms?

Harmonic distortion can occur in both voltage and current waveforms due to the nonlinear behavior of electrical equipment. Nonlinear devices, such as rectifiers, inverters, and certain types of loads, can introduce harmonics into the system. These harmonics are integer multiples of the fundamental frequency and affect both the current and voltage waveforms present in an electrical system.

When a nonlinear load draws current that is not sinusoidal, it not only distorts the current waveform but can also lead to corresponding distortions in the voltage waveform. This distortion alters the characteristics of the power being supplied and can lead to various issues such as overheating, equipment malfunction, and increased losses in the power system. Therefore, it's important to acknowledge that harmonic distortion impacts both voltage and current, confirming that the correct answer is that it occurs in both types of waveforms.