In the modern world, power is a necessary element of daily life. The bulk of ordinary items have some kind of power. We must make use of the most advanced energy technology to deliver power to people in a secure and economical manner. The loss increases because of harmonics increasing the circuit's current flow's RMS value. Many problems with the electricity grid have arisen as a result. The loads as well as the entire distribution system may be affected by harmonics. Moreover, harmonics may harm delicate machinery and appliances in a commercial or industrial setting. Harmonic dysfunction does not always become apparent right away, and it might even be mistaken for standard equipment wear and tear. 

Harmonics are a vital component of a power system since they affect the quality of the electricity and how things work. Excessive harmonic levels can cause parts to overheat, limiting the device's lifespan. Harmonics modifies the pure sine wave produced by a perfect power source. Harmonic distortion impairs a company's capacity to generate products and conduct business. Below are a few examples of how harmonic distortion affects business.