Nonlinear loads are a common source of what type of problems?

Nonlinear loads are indeed a primary source of harmonic distortion in electrical systems. This occurs because nonlinear devices, such as computer power supplies, LED lighting, and variable frequency drives, draw current in a non-sinusoidal manner. As a result, instead of drawing current smoothly over time, these devices create sharp waves and abrupt changes, which leads to the generation of harmonic frequencies.

Harmonics can interfere with the normal operation of electrical equipment, leading to issues such as overheating, equipment malfunctions, and reduced efficiency. In power systems, harmonics can also cause voltage distortion, which affects the quality of the power supply. Therefore, addressing harmonics is critical for maintaining system stability and performance in environments with many nonlinear loads.