Students of Diploma 3rd Sem in Electrical Engineering, Electronics & Comm. Engineering and Diploma 1st Sem in Electrical Engg., Electronics & comm. Engineering visited 66kV substation, of GNA Axles, Mehtiana on 25th October, 2016. Before the visit they were given extensive training on safety requirements both for contextual case of substation and in general. They also made a preliminary visit to the in house substation of 11kV. During the main visit they were,familiarised with the distribution system of 66kV substation, switch gear and protection panels power factor improvement & harmonics filter yard. The theoretical fundamentals were strengthened with line diagram display and also at uninstalled equipment under repair.