In order to effectively combat harmonics in industrial applications, it is crucial to identify the causes and consequences of harmonic distortion. Harmonics are defined as waveforms of currents or voltages which are integer multiples of the fundamental wave’s frequency and almost always caused by non-linear electrical loads such as rectifiers and variable frequency drives. Sinotech Group focuses on the development of solutions such as harmonic filters, active power factor correction systems, and modernized transformers aimed at these issues. The use of these technologies helps industries to increase energy efficiency, lower the operational costs, and extend the life of their electronics.