SEMI has always placed vital importance on the technical aspects of all its projects. That is why we have constantly been able to rely on a highly reliable team, capable of assimilating the experience acquired by the company during its long history, and applying it to projects and the study of new works.
Our design and engineering activities within the field of power transmission began from day one. In this area we have achieved significant technical milestones such as the project for and construction of the first 220 and 400 kilovolt (kV) quadruple lines and the first 400 kV transformation.
The experience gained in this sector has made SEMI a benchmark company in:
- Engineering projects for aerial and underground electric power networks of up to 400 kV.
- Repowering engineering projects, and increasing line capacity in existing overhead power lines.
- Calculating and designing electricity distribution towers and special solutions.
We have overseen many projects in the communications sector involving radio links, aerial and radar support towers, mobile telephone masts, and fibre optic networks. The Shortwave Broadcasting Station for Radio Nacional de España in Noblejas (Toledo, Spain) is an example of one of SEMI's most pioneering initiatives.
In the railway sector, besides its participation in the first electrification project carried out in Spain (the Madrid-Ávila-Segovia line), SEMI designed the CR-200 overhead line for RENFE for 200 km/h speeds, and also contributed significantly to defining RENFE’s “Overhead line”. Furthermore, SEMI was also responsible for designing the overhead line project for the Madrid-Barcelona (AVE) line high-speed train, permitting speeds of up to 350 km/h. A technology which was adopted on a national scale by the Spanish Government.
The most recent expansion of this field of business to architectural and industrial facilities works has come hand in hand with the integration of technical support for the execution of projects and study of electrical substations, civil works, and renovation involving associated electrical, energy-saving, heating and cooling, and fire protection systems.
The remote control and telecontrol engineering team, which is responsible for attending to the needs of our clients in these areas, is deserving of particular mention. This highly-qualified department performs its activities within the energy sector, providing solutions that stand out for the simplicity, agility and complete reliability offered to national and international companies.