High-Speed Railway Line Madrid-Galicia in Spain

Subbiano Arezzo, Italy, November 2020 – A total of 115 cast resin insulated transformers have been installed in various tunnels of the high-speed railway line Madrid-Galicia in Spain. Well-known transformer manufacturer Tesar provided an efficient solution to customer UTE IndraAlstom and customer Elecnor.

Adif Alta Velocitad, the Spanish state-owned administrator of railway infrastructures, has awarded new contracts for the further development of the high-speed line between Madrid and Galicia. The investment will mainly concern the protection and safety installations in tunnels and the completion of the electrification of the line.

The new high-speed line, a 434.86 km section, is built with a double electrified track and is designed to handle a maximum speed of 350 km/h. The new connection will significantly improve speed, reliability, comfort and travel times. The project supports social cohesion and stimulates the economy throughout all of Spain.

For the multiple tunnels on the line, a total of 19 tunnels, Tesar designed reliable and energy efficient cast resin transformers.

Some specifications of the project:

  • Customer: UTE Indra Alstom
    49 TR 100KVA 20/0,42kV
    2 TR 160KVA 20/0,42kV
    3 TR 250KVA 20/0,42kV
    3 TR 630KVA 20/0,42kV
  • Customer: Elecnor
    48 TR 100KVA 20/0,42kV
    5 TR 160KVA 20/0,42kV
    2 TR 250KVA 20/0,42kV
    3 TR 630KVA 20/0,42kV
  • Delivered from January to August 2020
  • Full line expected to open in 2022

About Indra
Indra is a world-leader in providing proprietary solutions in specific segments in transport and defence markets. With more than 49,000 employees, Indra has a local presence in 46 countries and business operations in over 140 countries.

About Alstom
Leading the way to greener and smarter mobility worldwide, Alstom is a multinational company that offers a complete range of equipment and services, from rolling stock to integrated systems, customized services, infrastructure, signalling and digital mobility solutions. In Spain it employees more than 2,000 people, making it the second largest Spanish employer in the sector.

About Elecnor
Spanish company Elecnor is one of the leading corporations in project development, construction and operation through the business areas of infrastructure and concessions. With a presence in more than 50 countries, Elecnor has become an important player in the infrastructure, renewable energy and technology sectors.

About Tesar
Tesar is part of the Swiss-based R&S Group, a leading provider of electrical infrastructure products in key markets. With manufacturing facilities and offices in Europe, the Middle East and South America, R&S is a major supplier of transformers and switches for customers in the utility, industry and infrastructure sectors.