Renfe Class 730

The Renfe Class 730 or S-730[4] (Spanish: Serie 730 de Renfe, manufacturer's designation Talgo 250 Dual) is a high-speed dual-gauge, dual-voltage and hybrid (electric and diesel) trainset consisting of 11 Talgo VII tilting coaches and two power cars, used on Alvia services.[5][6] The class have been nicknamed patitos (ducklings/little ducks), due to the shape of the train nose.[7] They are a variant of RENFE Class 130 modified to be able to run on both electric and diesel power, in order to extend higher-quality services to parts of Spain not on the electrified network.

Renfe Class 730
Talgo 250
A Class 730 near Aranjuez, Madrid
In serviceout of service (due to covid)
ManufacturerTalgo[1] / Bombardier (Kassel)[2]
Constructed2012
Entered service2012
Number built15
Capacity11 coach set:
299 seats, 236 standard, 62 first, 1 special[1]
Operator(s)Renfe
Specifications
Train length183 m (600 ft 4.7 in)[1]
Car length20 m (65 ft 7.4 in) (power car)[1]
13.14 m (43 ft 1.3 in) (passenger car)[3]
Width2.96 m (9 ft 8.54 in) (power car)[1]
Height4 m (13 ft 1.48 in) (power car)[1]
Maximum speed250 km/h (160 mph)
Axle loadmax. axle load 18 t (17.7 long tons; 19.8 short tons)[1]
Traction systemElectro-diesel (dual-mode)
Prime mover(s)2x MTU 12V 4000 R43L (S730)
Power output2,400 kW (3,200 hp) @ 25 kV AC
2,000 kW (2,700 hp) @ 3 kV DC
(per power unit)[1]
1.8 MW (2,400 hp) per power car in diesel mode (S730)
TransmissionElectric
Electric system(s)25 kV 50 Hz AC / 3 kV DC[1]Catenary
Current collector(s)Pantograph (2 per power car)
high voltage roof mounted electrical bus between power cars.
UIC classificationBo'Bo' 2,1,1,1,1,1,1,1,1,1,1,2 Bo'Bo'
(11 car set)
BogiesBoBo (power car)[1]
Articulated independent wheel 'single axle' in passenger cars[1]
Braking system(s)2 disc brakes per axle
regenerative and rheostatic brakes in power cars[1]
pneumatic discs in passenger cars[1]
Multiple workingYes
Track gauge1,435 mm (4 ft 8+1⁄2 in) / 1,668 mm (5 ft 5+21⁄32 in)[1]

Background and design

The trainsets are designed for high-speed services on conventional Iberian gauge (1,668 mm (5 ft 5+21⁄32 in)) network and standard-gauge high-speed (1,435 mm (4 ft 8+1⁄2 in)) lines; they can change gauge at low speed without stopping using Talgo's RD variable gauge system.[8] The carriages are constructed from aluminium and incorporate the Talgo Pendular passive pendulum tilting system,[9] are sealed against pressure differences for tunnel travel,[1] and have underframe air conditioning, individual audio systems and video displays, rotating and reclining seats and power outlets.[3]

Capacity in standard class is 36 seated, in first class 26 seats, end coaches have lower capacity, one coach is typically used for restaurant/sales services.[1]

The power cars use AC traction motors controlled by IGBT inverters which include integrated auxiliary inverters. Signalling systems can include ETCS Level 2, LZB, ASFA and Ebicab900TBS.[10]

2013 Santiago de Compostela accident
Main article: Santiago de Compostela derailment

On 24 July 2013 a Renfe Class S730[11] running as the Alvia 4155 service from Madrid to Ferrol derailed and crashed near Santiago de Compostela in north-western Spain, killing 79, out of 218 passengers on board. The cause of the accident is not yet officially determined, but the train was alleged to be traveling over twice the posted speed limit while entering a curve, due to the absence of ERTMS.[12]

See also

References
  1. "Talgo 250" (PDF). 2016-03-04. Archived from the original (PDF) on 4 March 2016.
  2. Bombardier Transportation in Germany p. 14, Bombardier.com
  3. "Talgo Series VII Passenger Coaches". 2010-03-28. Archived from the original on 28 March 2010.
  4. From Serie 730 de Renfe
  5. Trayectos y Servicios - clase preferente Renfe.es
  6. Trayectos y Servicios - clase turista Renfe.es
  9. "The Talgo Pendular Coaches" (PDF). 2011-07-16. Archived from the original (PDF) on 16 July 2011.
  10. "POWER HEAD TALGO 250" (PDF). 2011-07-16. p. 7. Archived from the original (PDF) on 16 July 2011.
  11. "train-crash-2-1-402x293.png (402x293 pixels)". Archived from the original on 24 July 2013. Retrieved 30 May 2022.
  12. Rodrigo Silva; Antonio Alonso (25 July 2013). "Accidente ferroviario en Santiago de Compostela". El País (in Spanish). Madrid. Retrieved 25 July 2013.

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