Transformadores GEDELSA S.A. is a company specialising in the manufacture and repair of distribution and power transformers, based in the city of Salamanca, Spain.

Since 1973 Transformadores GEDELSA S.A. has been working in modern premises with an area of over 7,000 m2 in the "El Montalvo I" industrial estate in Salamanca.

The work throughout these years has enabled the company to develop a broad range of very high quality and technologically competitive products, all of which are warranted by the various certificates and recognitions achieved.

The transformers are made to the criteria of the specific IEC, EN and UNE standards for this sector, but also meet the particular requirements of each customer, which has allowed access to other markets as well as the national market and has helped to place Transformadores GEDELSA, S.A. among the foremost companies in the manufacture of dielectric liquid immersed transformers.


Recently the manufacture and assembly of integral Transformation Centres was started up with the company's own design, principally for export. From the start and until now, more than 50,000 transformers have been made, for the Spanish market and for countries as widely spread as USA, Mexico, Bolivia, Jordan, Algeria, Nigeria and Angola. The customers in Spain are the main electricity companies such as IBERDROLA, installer companies such as Isolux and Elecnor and distributors of electrical material, such as Electrofil and Electrostocks.