The 310 MVA 34.5 kV/1800… 1125V electric arc furnace transformer, used for melting steel at electric steel plants, was manufactured by BEST A.Ş..

It is the world’s largest special transformer to date, according to BEST.

The transformer is 6.1 meters wide, 7.8 meters long, and 7.25 meters tall, and weighs in at 300 tons.