Hamburg U-Bahn Type DT4

Last updated
HHA-Baureihe DT4
DT4 U-Bahn U4 Uberseequartier - 3928-df3.jpg
A DT4 train at Überseequartier station in May 2013
In service1988–
Manufacturer LHB, ABB
Constructed1988–2005
Refurbished2011–
Number built126 units
Number in service126 units
Fleet numbers101–226
Capacity182 seated
Operator(s) Hamburger Hochbahn AG
Depot(s)Farmsen, Barmbek
Specifications
Train length60.28 m (197 ft 9 in) [1]
Width2.58 m (8 ft 6 in) [1]
Height3.32 m (10 ft 11 in) [1]
Doors2 pairs per side (per car)
Maximum speed80 km/h (50 mph)
Weight76.8  t (75.6 long tons; 84.7 short tons) [1]
Traction system Three-phase asynchronous (two motors per powered bogie)
Power output1,000 kW (1,340 hp)
Electric system(s) 750 V DC third rail
Current collector(s) Contact shoe
UIC classification Bo′2′Bo′+Bo′2′Bo′
Braking system(s) Dynamic main brakes, automatic air brakes
Safety system(s) Sifa
Track gauge 1,435 mm (4 ft 8+1⁄2 in)

The Type DT4 is a four-car electric multiple unit (EMU) train type operated by the Hamburger Hochbahn AG on the Hamburg U-Bahn system since 1988.

Contents

Formation

Every DT4 train consists of four cars, which are formed as two articulated half-sets with two cars each. The cars don't have gangways, but feature windows in the inner car ends. [2]

Interior

The interior consists of transverse seating bays. [2] Widescreen passenger information displays are to be fitted to the whole DT4 fleet, with works scheduled to be completed in 2022. [3]

Technical specifications

The trains have steel car bodies and a three-phase propulsion system. [2] Thyristor inverters are used in the DT4.1 and DT4.2 trains, and the DT4.3 through DT4.5 trains use GTO-pulse inverters. [2] The DT4.56 and DT4.6 trains use IGBT-pulse inverters. [2]

Each four-car set has four powered bogies and two non-motored jacobs bogies. The powered bogies are equipped with water cooled three-phase asynchronous motors. [2]

History

The development of the DT4 began in 1986, and the first unit was completed on May 30, 1988.[ citation needed ] Passenger service began on October 17 of the same year.[ citation needed ]

The DT4 trains are being refurbished since 2011.[ citation needed ] They receive a newer interior appearance, similar to the interior of the DT5 trains. One car of set 140 was refurbished for testing purposes in summer 2010.[ citation needed ] Regular refurbishment started in 2011.[ citation needed ]

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References

  1. 1 2 3 4 Schleife W.; et al. (1992). Metros der Welt[Metros of the world] (in German) (2nd ed.). Berlin: transpress Verlagsgesellschaft. p. 142. ISBN   3-344-70715-9.
  2. 1 2 3 4 5 6 Pabst, Martin (2006). S-Bahn- und U-Bahn-Fahrzeuge in Deutschland[S-Bahn and U-Bahn vehicles in Germany] (in German) (2nd ed.). GeraMond. pp. 62–63. ISBN   3-7654-7366-9.
  3. ↑ "Mehr Fernsehen in Hamburgs Zügen - Hochbahn baut Unterhaltungs-Angebot aus" [More television on Hamburg's trains - Hochbahn is expanding its entertainment service]. Hamburger Morgenpost (in German). November 1, 2019. Archived from the original on January 5, 2020. Retrieved January 5, 2020.
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