DEVELOPMENT AND APPLICATION OF AMORPHOUS CORE-DISTRIBUTION TRANSFORMERS IN QUEBEC

This paper describes research and development activities at Hydro-Queb ec over the last ten years for improving the efficiency of distributio n transformers in Quebec. A shell-type (wound-core) design making opti mum use of the properties of amorphous metals (Metglas TCA formerly kn own as Metglas 2605s-2, Allied Signal Inc., Morristown, NJ) was adopte d. Dry and oil-cooled, amorphous-core transformer prototypes were buil t, The joint research and development project was initiated with Trans formateurs Ferranti-Packard Ltee, a company of Rolls-Royce Industries Canada Inc., to build and test a few units of high performance transfo rmers on the Hydro-Quebec power system.