In the present world, power is an essential part of daily life. Most daily-use things are powered in some form. To provide people with electricity in a safe and reasonable manner, we must use the most advanced power technologies available. Harmonics increase the RMS of the circuit's current flow, hence increasing the loss. This has caused several problems with the electrical systems. Harmonics can influence the whole distribution system, including the loads. Harmonics can also damage delicate offices and manufacturing gadgets and equipment. Harmonic flaws may not always be apparent at once, and it can be difficult to differentiate from normal wear and tear. 

Harmonics is an integral part of a power system since it affects the quality of the electricity and how things function. High harmonic levels can cause equipment components to overheat and shorten their lifespan. Pure sine waves created by a perfect power source are modified by harmonics. Harmonic distortion hinders a company's ability to create items and conduct business. Here are a few instances in which harmonic distortion has an impact on business.