CENTENARY OF THE TRANSFORMER

Abstract

K. Zipernowsky, M. Déri and O. T. Bláthy, engineers of Ganz Works in Budapest, field their patent applications in January-March 1885 concerning in-parallel connection, freely chosen transformer ratios and closed-core transformers. The term "transformer" was also used by them for the first time. This paper deals with the antecedents and the story of the invention.