Hamburg U-Bahn Type DT4
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| HHA-Baureihe DT4 | |
|---|---|
 A DT4 train at Überseequartier station in May 2013 | |
| In service | 1988– |
| Manufacturer | LHB, ABB |
| Constructed | 1988–2005 |
| Refurbished | 2011– |
| Number built | 126 units |
| Number in service | 126 units |
| Fleet numbers | 101–226 |
| Capacity | 182 seated |
| Operators | Hamburger Hochbahn AG |
| Depots | Farmsen, Barmbek |
| Specifications | |
| Train length | 60.28 m (197 ft 9 in)[1] |
| Width | 2.58 m (8 ft 6 in)[1] |
| Height | 3.32 m (10 ft 11 in)[1] |
| Doors | 2 pairs per side (per car) |
| Maximum speed | 80 km/h (50 mph) |
| Weight | 76.8 t (75.6 long tons; 84.7 short tons)[1] |
| Traction system | Three-phase asynchronous (two motors per powered bogie) |
| Power output | 1,000 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.
Formation
[edit]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
[edit]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]
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Interior view -
Interior with passenger information display in September 2008 -
Interior of a refurbished train in August 2015
Technical specifications
[edit]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
[edit]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]
References
[edit]- ^ a b c d 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.
- ^ a b c d e f 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.
- ^ "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.
External links
[edit]
- Hochbahn fleet information (in German)