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Alvia Series 730 (Hybrid)

Characteristics

In June 2012, the S-730 hybrid train was inaugurated in the Madrid-Galicia service. It was the company's first hybrid train, using both diesel and electric traction technology, which allows it to extend the advantages of high speed to non-electrified sections, given that it now has the variable gauge wheel set system that allows the train to run on both UIC gauge (AVE gauge) or conventional gauge tracks.

The hybrid trains run on high-speed sections that are already operating (Madrid-Valladolid), on sections that are not yet electrified (Valladolid-Ourense) and on the high-speed section between Ourense and Santiago de Compostela.

The new trains of the 730 series are the result of adapting the 130 series units to those in which diesel traction units are incorporated: two, 1800-kW engines with an alternator and a current rectifier. Renfe, through its Integria industrial division, is leading a railway engineering and innovation project in which the manufacturers Talgo and Bombardier are participating and which will result in a fleet of fifteen hybrid trains. The investment amounts to 78 million euros.

The new cars that house the diesel engines also include cooling towers, converters for the train's auxiliary services, 2000-litre fuel tanks and two-axle bogies of variable gauge for changing between track networks.

The S-730 trains have 216 seats in Standard class, 46 seats in First class and a cafeteria car.

They can travel at a maximum speed of 250 km/h on high-speed track and 220 km/h on conventional electrified track, while their maximum speed on non-electrified conventional track is 180 km/h. The signalling systems incorporated on the train (ERTMS, LZB and ASFA Digital) guarantee interoperability on the entire Spanish railway network, and they complete the technical features of one of the most versatile high-speed trains in the world.

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