First 1 MVA and 10/0.4 kV HTSC transformer in Russia

This article describes results of the development, construction, and test of the first three-phase distribution power transformer prototype in Russia with windings made from second-generation HTSC wire and iron core from amorphous electrical steel. The design of its elements is described and improvement of HTSC transformer performance characteristics compared to conventional power transformers with the same power rating is shown.