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Infrastructure | 22 Sep 2014

Supply of a 12.5 MVA transformer

We have supplied medium-voltage switchgear and a power transformer riser, which will supply electricity to the tunnelling machines working in the Campobecerros tunnel, part of the high-speed rail line section of Lubián – Orense (Galicia).

The project consisted of the installation of a 12.5 MVA transformer, a 20 kV to 30 kV riser, together with switching and protection units both on the 20 kV side, cgmcosmos system, and on the 30 kV side, cgm.3 system. Once the voltage was increased to 30 kV, the customer installed an overhead line covering a total of 55 km. At the end of this line the installation has a 20 MVA transformer gear reducer of 30 kV to 20 kV, from which the tunnelling machines are supplied.

Our customer, Elecnor - one of the main electrical installation companies in Spain-, has identified us as a quality supplier, capable of providing an electrical supply service to large infrastructures, thus we see our position in this segment reinforced.