There are numerous types of transformers . However, and no matter the type is, transformers are always shielding electrical equipment in a very effective way. The significance of its role is that it adjust immediately the voltage. For the category of high voltage transformers, the voltage is stepped down from high to medium. In addition to the role of equipment protection and voltage modulator (or convertor), transformers also can prevent short circuits. The rate power of high voltage transformers differs according to many circumstances like current waves or voltage outputs. To conclude, e-electricity took the importance of transformers in the energy market into consideration and provided more information for whom concerned. E-electricity provides a wide list of high voltage transformers’ products. Register and keep updated about this equipment or other. In fact, transformers are tremendously indispensable in measuring the voltage and modulating it. The voltage comes out high from power station plant (above 1500 volt) then it should be reduced more and more until it reaches the consumer. High voltage transformers main task is to reduce the voltage from high to medium. In the second phase we find medium voltage transformers and at the end distribution transformers. Consequently, e-electricity is affording the opportunity to find or sell high voltage transformers products.