Henschel-SSW DE 2000
| DE 2000 | |
|---|---|
.jpg) WLE DE 0902 (internal Henschel nickname: "Haifisch")
|
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| Numbering: | DB: 202 001-4 WLE: DE 0902 |
| Number: | 1 |
| Manufacturer: |
Henschel , Siemens-Schuckertwerke |
| Year of construction (s): | 1962 |
| Retirement: | 1978 |
| Axis formula : | Bo 'Bo' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 18,200 mm |
| Height: | 4125 mm above the roof apex, 4200 above roof structures |
| Width: | 3020 mm over side wall panels |
| Trunnion Distance: | 10,800 mm |
| Bogie axle base: | 3000 mm |
| Total wheelbase: | 13,800 |
| Service mass: | 83.2 t |
| Friction mass: | 83.2 t |
| Wheel set mass : | 20.8 t |
| Top speed: | 120 km / h |
| Installed capacity: | 1450 kW / 2000 PS (UIC nominal power) + 92 kW / 125 PS (auxiliary diesel for three-phase on-board power supply generator, fan hydrostatic pumps, piston air compressor for control and pneumatic brakes) |
| Traction power: | 1370 kW (generator continuous output) |
| Continuous output : | 1370 kW (dd) (generator); 1800 A (dd) (not simultaneously) |
| Starting tractive effort: | 250 kN |
| Driving wheel diameter: | 1100 mm |
| Motor type: | MD 870 (Maybach main diesel engine) |
| Motor type: | 16 V 4 W AL (Maybach) and 6 R 1115 (Henschel) |
| Rated speed: | 1500 rpm |
| Power transmission: | Direct current direct current |
| Tank capacity: | 3500 l |
| Number of traction motors: | 4 × 365 kW (dd) direct current series connection, externally ventilated, tatzlager type, permanently connected in parallel when driving, when braking all 4 fields in series from the main generator externally excited, 2 armatures in series acting on 1 externally ventilated braking resistor |
| Drive: | diesel-electric |
| Type of speed switch: | pneumatic |
| Brake: | Klotz / pneumatic / electrodynamic |
| Train heating: | Steam (Hagenuk boiler, "Vaporheating" system) |
| Control: | SSW "Transidyne" (R) magnetic amplifier control of the generator excitation current |
| Particularities: | "Pneumatic effective torque influence" according to Henschel (1962), axle load compensation |
| Driver's cab fronts built over by frame end plates and inclined about 13 ° forwards; Sheet metal with a radius of about 20 m, slightly convex (tapping drawings Henschel and Meissner) | |
The EN 2000 was a diesel-electric prototype - locomotive of the DB-202 series . It was developed jointly by the companies Henschel and Siemens-Schuckertwerke , or SSW for short. It was built by Henschel in Kassel in 1962 and presented to the public for the first time in the same year at the Hanover Fair . The serial numbers were 29862 for Henschel and 6226 for SSW.
Emergence
In the 1960s, Siemens-Schuckertwerke looked for and found a partner in Henschel for the development of a diesel-electric locomotive. There was a higher demand worldwide for this type than for diesel-hydraulic locomotives. The latter, however, was preferred by the Deutsche Bundesbahn (DB).
With the same key data (dimensions, boundary profile ) of the ÖBB 2050 from Henschel, the locomotive was supposed to provide more power in the US GM-EMD technology of the time. The DE 2000 was able to come up with a new type of control of the conventional direct current main generator. Otherwise, the higher power was obtained solely from the speed and thus the voltage of the diesel generator set, which was roughly doubled compared to the US technology, which enabled lower currents and thus smaller copper cross-sections. For comparison:
- USA (GM-EMD): 835 / min (of the old 567 motor series), voltages up to max. approx. 650 V, at that time the heaviest components for the highest currents up to approx. 6000 A, therefore highly overloadable.
- Germany: (Henschel, Maybach, Siemens): 1500 / min, voltages up to 1100 V, lower currents max. 3000 A, smaller cross-sections, lighter assemblies, only limited overload capacity.
- USSR (Luchansk): 750 / min, max. 750 V, max. approx. 6000 A (e.g. starting current M62 ), therefore highly overloadable like US technology.
use
Federal Railroad
After its acceptance in October 1962, the DB rented the locomotive from the Kassel depot for five years. There was great interest in comparing this locomotive with diesel-hydraulic series locomotives from the V 200 and V 160 series . The DE 2000 was stationed at the railway depots in Cologne-Nippes, Hamm and Lübeck. It was used in passenger train service. In 1968 it was given the EDP-compatible designation 202 001-4, but it was never written on the locomotive. In 1969 it was returned to Henschel at the end of the rental period. Also at the end of the 1960s, the primary suspension was converted from leaf springs originally located below with lemniscate linkage to height-offset coil springs with new, link-guided axle bearing housings similar to the later DB series 111 or the SŽD series ТЭ109 / DDR V300 family .
Westphalian State Railroad
In May 1970 DE 2000 was taken over by the Westfälische Landes-Eisenbahn (WLE) as DE 0902. There she had to deal with freight trains for transporting limestone. In 1973 the engine was throttled to 1,323 kW / 1,800 hp in order to extend its service life. In October 1977, however, the locomotive came to an unexpected end. The four drive motors and the generator were thermally overloaded and seriously damaged in the lower speed range due to an operator error . Since a repair along with the upcoming general inspection would have been too expensive, the locomotive was scrapped in 1978 after the diesel engine was removed.
review
Despite the initial mistake with the generator, AEG's competing approach in Krupp-AEG ME 1500 (DE1500, 201 001) was the more successful in the long term. Diesel-electric locomotives are still (2008) being built in the USA, China, France and Russia for commercial use with their AC-DC transmission technology; it cannot always be replaced economically by the newer AC-AC technology.
The preferred use of DE 2000 in front of passenger trains concealed the system disadvantage of the lower overload capacity for a long time; on the other hand, it was not a high-speed locomotive at 120 km / h. The purely hydrostatic drive of all DE 2000 fans was abandoned in favor of electric fan drives in the only production locomotive with its technology, the Greek OSE series A410 (Co'Co'-de) built by Jung and Siemens . However, due to their six-axle design and a mass of 111 t, these locomotives could no longer meet the requirement of being “better” (in terms of specific performance) than US technology. As early as 1967, in addition to the Krupp-AEG DE 1500, with the successful prototypes for the SDP45F and later the SD40-2 in the USA, it became clear that the light, brushlessly excited three-phase synchronous main generator with power tapping on the stator and downstream multi-phase silicon bridge rectifiers Would belong in the future (AC-DC technology). Characteristics of the diesel hydraulics have now been achieved in series - previously only with the British "Deltic" ( Class 55 ) - or exceeded in the express train sector (Canadian LRC express trains, British HST trains). The time window of DE 2000 for a possible series production had been open between 1962 and 1967. After that, this technology had to be considered obsolete, both against competitors in France, the USA and the USSR with AC-DC technology and against the pure three-phase drive technology from Brush (GB) and BBC (Germany), which is currently being developed.
literature
Historical information:
- Markus Hehl: EK Special 72 German diesel locomotives . EK-Verlag, Freiburg 2004 ISSN 0170-5288
- Mattias Maier: The DB diesel locomotives . Franckh Verlag, Stuttgart 1988, ISBN 3-440-05870-0
- Horst Meissner: "About our overview drawing - story of a loner - Die DE 2000" in "Eisenbahn-Magazin" H.1 / 1979, p. 31; Zchg (WLE condition) pp. 35/6 & 41–44.
Technical specifications:
- Wolfgang Glatte: Railway Vehicle Archive Volume 3 - Diesel Locomotives of German Railways . Verlag Transpress / Alba 1988 ISBN 3-87094-116-2
- Henschel Works, Kassel; Siemens-Schuckert-Werke, Erlangen: "Diesel-electric locomotive DE2000" Kassel, 1962 (publication no. L-578-423-D)
- On Henschel diesel engine "6R1115": Henschel Lokomotiv-Taschenbuch 1960, pp. 165–166.
- On the "Transidyne" magnetic amplifier principle: Henschel Lokomotiv Pocket Book 1960, p. 209
- Too slightly further developed, basically the same control: block diagram at S.Müller, "elektr. U. Diesel-electr. Traction vehicles", Basel / Stuttgart: Birkhäuser 1979
Page 189 above f. Greek OSE series "A410" (Jung / Siemens 1967ff.)
