A transformer is an electrical device that transforms the voltage of an alternating current from one level to another. The intermediate transformer (with auxiliary oil tank) belongs to the type of transformer with input voltage of 35kV, output voltage of 22kV, 10kV, immersed in standard insulating oil.

The product is manufactured and tested according to TCVN 6306-1: 2015 (IEC 60076-1: 2011) and TCVN 8525: 2015. Main materials constituting the product include: Silica sheet of Japanese and Korean origin; soft-wire/copper paper-coated M1; insulating oil from Swedish, Indian, and Malaysian firms; voltage regulator from Italy; paper insulation source: Germany, Sweden; circuit from cross-cutting and punch-cutting on the G7 corrugated board; The wiring harness is constructed on specialized equipment; The machine’s intestines are vacuum-dried.