The 400 kV axis, links the central and southern areas of the Spanish peninsula, linking the substations of Almaraz, San Serván, Brovales and Guillena by means of 327 km of electricity lines. Similarly, the axis includes another 48 km of 220 kV lines to Mérida and Balboa.
Objectives of the axis
San Serván Substation
It is one of the substations that make up the electricity axis. It is comprised of 2 switchyards: one 400 kV in a one and a half switch configuration, and one 220 kV in a double busbar configuration. The connection between these two switchyards is performed through a 600 MVA autotransformer bank.
Main environmental measures applied in the axis: