TW 6000

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TW 6000
Train of the railcar series TW 6000
Train of the railcar series TW 6000
Numbering: 6001-6260
Number: 260
still 70 in use in Hanover (October 2019)
Manufacturer: Düwag (6001-6100)
LHB (6101-6260)
AEG , Siemens , Kiepe
Year of construction (s): 1974-1993
Axis formula : B'2'2'B '
Gauge : 1,435 mm ( standard gauge )
Length over coupling: 28.28 m
Length: 27.00 m
Height: 3.31 m
Width: 2.40 m
Trunnion Distance: 6.40 m
Bogie axle base: 1.80 m
Smallest bef. Radius: 17.5 m
Empty mass: 38.8 t
Top speed: 80 km / h
Hourly output : 434 kW
Acceleration: 1.0 m / s²
Braking delay: 3.0 m / s²
Wheel diameter: 730 mm
Power system : 600–750 V DC
Power transmission: Overhead line
Number of traction motors: 2
Drive: 2 × motors on the bogie
Brake: Motor brake, spring-loaded disc brake, magnetic rail brake
Coupling type: Scharfenberg
Seats: 46
Standing room: 104
Floor height: 934 mm

The TW 6000 is a type of light rail vehicle that is used by the Hannover City Railroad ( Üstra ). When the construction of the tunnels and the redesign of the tram network into a light rail network began in Hanover in 1965 , a new vehicle had to be developed because the wagons previously used did not meet the requirements of light rail operations. The new vehicle should enable bidirectional operation, be able to serve high and low platforms and offer more comfort for passengers.

Prototypes

In 1970, Üstra acquired two six-axle prototypes from Linke-Hofmann-Busch (railcar 600) and Düwag ( railcar 601 ) for testing purposes . The vehicles were 2.5 meters wide and 19.5 meters long. Technically, they differed in a few points so that the right components could be selected for the series vehicles. The vehicles were tested in regular service until 1975 and parked after the first vehicles of the new TW-6000 series were put into service. The TW 600 was returned to the manufacturer LHB in 1978 and scrapped there in 1988. The TW 601 was transferred to Vancouver in Canada in 1975 , where it was parked for 13 years. In 1988 he was sold to Edmonton , where he was used since 2005 in the Edmonton Radial Railway Society . The return of the train to Hanover, organized by the Hanover Tram Association, began in August 2016.

Series vehicles

Railcar 6256 at the main station
inside view

The experience gained from testing the prototypes was used in the TW-6000 series. The result was an eight-axle light rail vehicle with a length of around 28 meters and 2.4 meters wide. In contrast to the prototypes, the railcars were painted lime green (signal green 308 from the Opel Kadett C ), with white areas left below the side windows for outdoor advertising. The manufacturer of the first batch of 100 units was Düwag for the wagon construction part and AEG , Kiepe and Siemens for the electrical equipment. For reasons of labor market policy, LHB received the next orders to have the railcars built in Lower Saxony .

On December 23, 1974, the Düwag unit 6001 was the first vehicle to be delivered to Hanover. By 1993, a total of 260 copies had been delivered, with the series being constantly adapted to the state of the art. They formed the largest closed light rail vehicle series in Germany.

A single car unit can carry up to 150 passengers. In normal operation, two units usually run coupled in a train formation. In addition to the TW-6000 series, the light rail vehicle type TW 2000 introduced in 1997 and the type TW 3000 supplied by HeiterBlick from March 15, 2015 are used on the light rail network .

technology

Technically, the TW 6000 series was very innovative when it was commissioned. These were the first trams in Germany to have a chopper thyristor control and a regenerative brake ( electric motor brake ).

The maximum speed was specified as 80 km / h (90 km / h were achieved), but is not driven in the Hanover network, as there are no routes where the maximum permissible speed is more than 70 km / h. The two DC tandem motors each produce 217 kilowatts at 750 volts overhead line voltage  and a maximum current of 900  amperes . They are installed lengthways in the first and last bogie to drive both axles of the bogie.

The maximum acceleration is 1.0 m / s², the maximum deceleration 3.0 m / s² (emergency braking). Braking is carried out by means of regenerative brakes (motor short-circuit brakes), solenoid brakes , spring-loaded brakes in the two drive frames and the front bogie and magnetic rail brakes on all four bogies. If necessary, sand can also be scattered.

Using the Scharfenberg coupling , several vehicles can be coupled to one another, the limit is four units in terms of driving technology. However, in Germany only tram associations up to 75 meters in length are allowed to operate. For this reason, three-car trains are only used in exceptional cases for major events on the lines to the exhibition grounds.

The gauge of the TW 6000 is otherwise the same as the gauge of the German railway network. Operation on the Deutsche Bahn AG lines is not conceivable due to the differences in the electricity system, but it is possible to move the TW 6000 over the normal rail network with the help of an additional locomotive. There is a corresponding transition in the Üstra network at the Leinhausen depot - past the DB Fahrdienste NL Nord building.

Further development

The technology was revised during the long delivery period.

The railcars from number 6101 have several innovations, such as the windscreen wiper and the floor covering have been changed. The handrails were now partially painted black.

The railcars from number 6206 have revised driving / braking electronics with GTO thyristors .

The railcars from number 6231 have modified doors, the inner wings are shortened and the rubber seal is accordingly significantly thicker.

The railcars from number 6251 no longer have center poles at the center entrances ex works.

There were also conversions, so in 2012 new smaller headlights were installed in many cars. In the cars 6206 to 6250, the central bar was subsequently removed from the middle doors.

Initially, 18 wagons were to be reconditioned; in addition to the renewal of various assemblies, multi-purpose compartments and more modern driver workstations were planned. But no contract has been awarded. The first reconditioned car (TW 6259) was publicly presented by Üstra on June 9th and 10th (Whitsun weekend) 2019. 40 cars are to be reconditioned about ten pieces per year. Another ten cars are to be mothballed as spare parts donors. More should not be received.

commitment

The railcars of the TW 6000 series had taken over the regular service not only on the lines converted to light rail, but also on several lines still assigned to the tram network, e.g. B. if the structural conditions there (lack of loops) no longer allowed operation with one-way vehicles. Examples are line 14 between 1984 and 1989 after the extension to Roderbruch opened and line 10 from around 1990 after the Limmer loop was dismantled.

The vehicles can run on the entire light rail network. Since some sections of the route have not yet been expanded for the slightly wider wagons of the TW-2000 series, only vehicles of the TW-6000 series still run on line 9 (as of 2019).

Since three-car trains of the type TW 6000 can only run with a special permit due to their length, they are only available at trade fairs on lines 8 and 18. On lines 1, 3, 4, 5, 6 and 7, the regular ones with Three-car trains run, TW 6000 are rarely used. Two-car trains of the type TW 6000 are no longer possible on lines 10 and 17 due to the short platforms.

Many vehicles have been scrapped, so that in July 2019 only 77 vehicles are still in use in Hanover, including none of the first series from Düwag, apart from the TW 6001, which was preserved as a museum car.

The remaining TW 6000 will gradually be replaced by the new TW 3000 series of railcars manufactured by HeiterBlick in Leipzig , but 40 wagons will remain in the fleet until the mid-2020s.

Use outside of Hanover

After Expo 2000 , eight vehicles were sent to the Den Haag tram (No. 6037, 6053, 6055, 6057, 6058, 6064, 6098, 6099), two for the Houten light rail (railcars 6016 and 6021) and 74 to BKV Zrt. sold in Budapest . For use on the Budapest tram , the cars received new windows and were repainted yellow. In 2010 the eight TW 6000s from Den Haag were resold to Budapest. One of the Houten vehicles was scrapped after the temporary light rail operation there had ceased, the other was returned to Hanover and then sold to Budapest. At the end of 2011 another ten vehicles were sold to the Budapest transport company following a tendering process. There are now 101 vehicles of the TW 6000 series in Budapest. Other vehicles serve as spare parts donors, a total of 123 vehicles have been handed over to Budapest (as of 2018). The cars were given the numbers 1500 to 1592 (from the 6001–6100 series) and 1600–1619 (from the 6101 ff series) .Tw 6148 was purchased from the Transtech company (Skoda Group). This is to be used for test drives on the new Tampere tram .

Vehicles based on the TW 6000

Between 1984 and 1997, Siemens supplied 136 light rail vehicles based on the TW 6000 for the Tunis light rail system.

Based on the TW 6000, LHB built the six-axle rail grinding car number 841 for Üstra in 1985 , which is still in use today. An identical vehicle was delivered to the Leipziger Verkehrsbetriebe (LVB) in 1993 (railcar 5090). This was sold to the new light rail company in Bergen in 2010 .

TW 6000 in art

On the Andreas-Hermes-Platz in Hanover there is a graffiti wall painting in trompe-l'oeil technique, which depicts a TW 6000.

TW 6000 as a graffiti work of art

literature

Web links

Commons : TW 6000  - collection of pictures, videos and audio files

Individual evidence

  1. Lennart Anton: Greens are becoming rare. Tram magazine 12/2019, pp. 16–21.
  2. Tw 601 of the Edmonton Radial Railway Society
  3. Andreas Herzberg: Our dream has come true! TW 601 has arrived in Hanover. In: strassenbahn-hannover.de . Strassenbahn Hannover eV, October 2016, accessed on December 16, 2016 .
  4. https://www.neuepresse.de/Hannover/Meine-Stadt/Alte-Uestra-Bahnen-Frische-Farbe-aber-nicht-mehr-Komfort
  5. http://ted.europa.eu/TED/notice/udl?uri=TED:NOTICE:182496-2018:TEXT:DE:HTML&src=0
  6. https://ted.europa.eu/udl?uri=TED:NOTICE:20208-2019:TEXT:DE:HTML#id3-V .
  7. Time travel. May 29, 2019. Retrieved May 29, 2019 .
  8. https://www.neuepresse.de/Hannover/Meine-Stadt/Alte-Uestra-Bahnen-Frische-Farbe-aber-nicht-mehr-Komfort
  9. https://www.uestra.de/unternehmen/presse-medien/pressemitteilungen/details/2018/zukunftsoffensive-im-nahverkehr-hannover-bekom-sieben-zusaetzliche-neue-stadtbahnen/
  10. https://www.uestra.de/unternehmen/presse-medien/pressemitteilungen/details/2018/stadtbahnflotte-waechst-der-hundste-tw-3000-faehrt-auf-hannovers-schienen/
  11. üstra press release dated December 29, 2011 ( memento of the original dated February 7, 2012 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.uestra.de
  12. ^ Transtech News. Retrieved February 27, 2020 .