DR series E 32

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bay. EP 2
DR series E 32
DB series 132
E 32 27 (October 1985)
E 32 27 (October 1985)
Numbering: E 32 06–34
E 32 101–108 (conversion)
Number: 29
Manufacturer: BBC (electrical part)
Maffei (mechanical part)
Year of construction (s): 1924–26 (E 32.0)
1936 (E 32.1 - conversion)
Retirement: until 1972
Axis formula : 1'C1 '
Gauge : 1435 mm ( standard gauge )
Length over buffers: 13,010 mm
Total wheelbase: 8,950 mm
Service mass: 84.8 t
Friction mass: 55,800 kg
Wheel set mass : 18.8 t
Top speed: 75 km / h (E 32.0)
90 km / h (E 32.1)
Hourly output : 1,170 kW
Continuous output : 1,010 kW
Starting tractive effort: 107 kN (E 32.0)
88.5 kN (E 32.1)
Driving wheel diameter: 1,400 mm
Impeller diameter: 850 mm
Power system : 15 kV 16 2/3 Hz AC
Power transmission: Overhead line
Number of traction motors: 2
Drive: Helical rod drive
Type of speed switch: Manually operated slide switch gear with single contact track, transition resistors and 4 load switches

The electric locomotives of the E 32 series of the Deutsche Reichsbahn were in use in Germany as light passenger locomotives for almost 50 years. After their initial designation as EP2 according to the numbering scheme of the Royal Bavarian State Railways , they carried the series designation E 32 from 1927 to 1968 in the numbering plan of the Deutsche Reichsbahn and the Deutsche Bundesbahn , in the last years of use after 1968 they had the EDP designation 132 . The short design with angled rod drive was characteristic of the E 32 .

history

Driver's cab of an E 32 in the DB Museum in Nuremberg

Between 1924 and 1926, the German State Railroad Group Administration of Bavaria procured 29 electric locomotives of the EP 2 series for light passenger train service. They carried the Bavarian designation EP2 20 006 to 034 before they were given the DR series designation E 32. The numbers 01 to 05 remained unoccupied because they had already been assigned to the Bavarian EP1 (later E 62). In terms of design, the E 32 is based on numerous pre-war designs , such as the Bavarian EP 3 . She was with two engines of the Bavarian. ES 1 and a countershaft on the inclined drive rod. The E 32 was used on all Upper Bavarian routes. Many parts of the locomotive were identical to those of the E 16 .

In 1936 the top speed of eight machines was increased from 75 km / h to 90 km / h by changing the gear ratio. These were given the numbers E 32 101 to 108 (E 32.1). The service program was the transport of a train with a 900 t load horizontally at 75 km / h and a train with a 460 t load on a gradient of 10 ‰ at 50 km / h. The converted locomotives could move 320 t trains on a gradient of 10 ‰ at 70 km / h.

Locomotives

No. kbayStsB No. DRG No. DB 1935 1950 1972 comment
EP 2 20 006 E 32 06 132 006-8 Munich central station Munich Hbf z - +17.07.1969 Munich Hbf
EP 2 20 007 E 32 07 - Treuchtlingen - - 09/27/1936 -> E 32 108
EP 2 20 008 E 32 08 132 008-4 Munich central station Munich Hbf z - +04.03.1971 Freiburg / Breisgau
EP 2 20 009 E 32 09 - Munich central station - - +07.11.1945 Munich Hbf, war loss
EP 2 20 010 E 32 10 132 010-0 Rosenheim Munich central station - +04.03.1971 Freiburg / Breisgau
EP 2 20 011 E 32 11 132 011-8 Munich central station Munich central station Munich Hbf z +01.08.1972 Munich Hbf
EP 2 20 012 E 32 12 132 012-6 Freilassing Munich central station Munich Hbf z + 01.08.1972 Munich main station, driver's cab at the Nuremberg Transport Museum
EP 2 20 013 E 32 13 - Freilassing - - August 19, 1936 -> E 32 107
EP 2 20 014 E 32 14 - Munich central station - - +09.11.1945 Munich Hbf, war loss
EP 2 20 015 E 32 15 132 015-9 Munich central station Munich central station - +02.05.1968 Munich Hbf
EP 2 20 016 E 32 16 132 016-7 Munich central station Munich central station - +01.03.1971 Munich Hbf
EP 2 20 017 E 32 17 - Munich central station - - 07/15/1936 (?) -> E 32 106
EP 2 20 018 E 32 18 - Munich central station - - May 17, 1936 -> E 32 103
EP 2 20 019 E 32 19 - Munich central station - - 03/10/1943z Air raid on the electric locomotive hall at Munich main station
+ 04/10/1943 Munich main station, loss of war
EP 2 20 020 E 32 20 132 020-9 Munich central station Munich central station - +04.03.1971 Freiburg / Breisgau
EP 2 20 021 E 32 21 - Munich central station - - 03/10/1943z Air raid on the electric locomotive hall at Munich main station
+ 04/10/1943 Munich main station, loss of war
EP 2 20 022 E 32 22 Munich central station Munich central station - + 25.01.1966 Freiburg / Breisgau
EP 2 20 023 E 32 23 - Munich central station - - 03/10/1943z Air raid on the electric locomotive hall at Munich main station
+ 04/10/1943 Munich main station, loss of war
EP 2 20 024 E 32 24 132 024-1 Munich central station Munich central station Munich Hbf z + 01.08.1972 Freiburg / Breisgau
EP 2 20 025 E 32 25 132 025-8 Munich central station Garmisch - +04.03.1971 Freiburg / Breisgau
EP 2 20 026 E 32 26 - Munich central station - - 12/11/1936 -> E 32 101
EP 2 20 027 E 32 27 132 027-4 augsburg Munich central station Munich Hbf z + 01.08.1972 Munich Hbf, received Bochum-Dahlhausen
EP 2 20 028 E 32 28 132 028-2 Munich central station Munich central station - +17.07.1969 Munich Hbf
EP 2 20 029 E 32 29 - Munich central station - - 03/15/1936 (?) -> E 32 102
EP 2 20 030 E 32 30 - augsburg - - May 15, 1936 (?) -> E 32 104
EP 2 20 031 E 32 31 132 031-6 Munich central station Munich central station - 04/02/1968 Munich Hbf
EP 2 20 032 E 32 32 - augsburg - - June 15, 1936 (?) -> E 32 105
EP 2 20 033 E 32 33 132 033-2 Munich central station Garmisch - +02.04.1968 Munich Hbf
EP 2 20 034 E 32 34 132 034-0 Munich central station Garmisch - +10.03.1971 Frankfurt / Main 1
- E 32 101 132 101-7 - augsburg Munich Hbf z +01.08.1972 Munich Hbf
- E 32 102 132 102-5 - augsburg - +10.03.1971 Frankfurt / Main 1
- E 32 103 132 103-3 - augsburg Munich Hbf z +01.08.1972 Munich Hbf
- E 32 104 132 104-1 - augsburg Munich Hbf z +01.08.1972 Munich Hbf
- E 32 105 132 105-8 - augsburg - +17.07.1969 Munich Hbf
- E 32 106 - - augsburg - + 25.01.1966 Munich main station
- E 32 107 132 107-4 - augsburg Munich Hbf z +01.08.1972 Munich Hbf
- E 32 108 132 108-2 - augsburg - +01.03.1971 Munich Hbf

German Federal Railroad

E 32 with an express train in scheduled service, 1967

24 locomotives were taken over by the Deutsche Bundesbahn after the Second World War , five locomotives had to be retired as war losses. At the end of the 1960s, 19 locomotives were still in service, which were used in shunting and light passenger train services in the Munich and Freiburg area. They were used there on the Wiesen- and Wehratalbahn , where they had previously replaced the last E 71 in Germany. In 1968, 22 machines were renamed to the EDP series designation 132 ; use ended on August 1, 1972, when the last eight 132 were retired.

museum

E 32 27 in the Bochum-Dahlhausen Railway Museum

The E 32 27 has been preserved. It is an inoperable exhibit in the Bochum-Dahlhausen Railway Museum . A driver's cab of the E 32 12 is on display in the Nuremberg Transport Museum.

technical description

Mechanical part

The frame was designed as an inner frame with 25 mm sheet metal thickness. It was stiffened by the buffer beams and cross members. The locomotive body consisted of a sheet steel frame and the roof of leaded sheet steel. Two roof segments were designed to be removable. The front sides of the locomotive body were equipped with middle transition doors, transition bridges and side protection. There were openings in the side walls for exchanging certain units and blinds.

The two traction motors and the countershaft were arranged low. This enabled a low center of gravity and a shorter connecting rod to the jackshaft compared to the previous locomotives . At the front, the leading running axle and the first coupling axle were combined into a Krauss-Helmholtz steering frame. The second coupling axle had flanged wheels and, like the third coupling axle, was firmly mounted in the frame. At the rear the locomotive was provided with a Bissel axle . The wheel sets are mounted in plain bearings on which the frame is supported by leaf springs.

Electrical part

There were two pantographs on the roof of the locomotives. Over time, these were replaced by two SBS 10/22/90 pantographs. These are erected using compressed air cylinders. The main switch connected between the pantograph and the transformer is a BBC standard oil switch, type BO.

The main transformer was an oil-cooled jacket transformer in an economy circuit with external ventilation. The continuous output of the transformer is 875 kVA. On its secondary side there were 13 taps for the traction motors and two for the train heating. These provide 800 or 1000 V respectively. The 200 V main tap is also used to supply the control system and the auxiliaries. To cool the transformer, an electrically operated oil pump sucks the warm oil out of the transformer tank and pushes it back into the tank through the drum-shaped oil cooler. The motor of the oil pump also operates the fan for the oil cooler, the cooling air of which is sucked out of the machine room.

As with the E 16, the control system was a hand-operated slide control . In other series, this control is described as relatively difficult to operate, but cheap to maintain. It had a quick release for each drive motor in each of the 13 speed levels. The direction of travel was changed using a pneumatic roller switch.

The two traction motors are designed as twelve-pole series commutator motors and were identical to those of the DR series E 16 . They had a maximum speed of 960 min −1 and had exciter, compensation and reversing pole windings. The rated power of the engines was 585 kW, with a mass of 5850 kg. Both traction motors, as well as the countershaft, are stored in a cast steel tub, which is firmly connected to the locomotive frame. The traction motors are cooled by an electrically operated fan, which sucks the cooling air out of the machine room.

The locomotive lighting was originally controlled by an on-board network of 24 V = , which was fed by a lighting generator or the battery. The lighting generator was coupled to the drive motor fan. The locomotives had a path-dependent Sifa .

literature

  • Horst J.Obermayer: Paperback German Electric Locomotives Franckh'sche Verlagshandlung, Stuttgart 1970
  • Alfred B. Gottwaldt: 100 years of German electric locomotives. Franckh'sche Verlagshandlung, Stuttgart 1979, ISBN 3-440-04696-6
  • Dieter Bäzold, Günther Fiebig: Railway vehicle archive Part 4: Electric locomotive archive. 6th edition, Transpress Verlag, Berlin 1987; ISBN 3-344-00173-6
  • Bernd Beck The Wechmann-Plan-Electric standard electric locomotives for the DRG in: Eisenbahnkurier 10/2016, EK-Verlag Freiburg

Individual evidence

  1. ↑ a b Dieter Bäzold, Günther Fiebig: Railway Vehicle Archive Part 4: Electric Locomotive Archive. 6th edition, Transpress Verlag, Berlin 1987; ISBN 3-344-00173-6 , description of the E 32
  2. ↑ Skrzypnik / Lüdecke / Lüdecke, The locomotives of the Bavarian Reichbahn directorates and their home depots - as of May 15, 1935
  3. ↑ Herb / Knipping / Wenzel, The locomotives of the German Federal Railroad in 1950
  4. ^ AG Eisenbahn-Kurier, The locomotives of the DB and the DR on July 1, 1972
  5. ↑ Dißinger / Hauenstein, federal railway traction vehicles '68 -'85 (with steam locomotives), BAHN report
  6. ↑ a b c d GDL (Ed.): Manual of the electric traction vehicles of the German Federal Railroad . 1st edition. Asset management of the union of German locomotive drivers and aspirants GmbH, Frankfurt am Main 1959.
  7. ↑ Dieter Bäzold, Günther Fiebig: Railway Vehicle Archive Part 4: Electric Locomotive Archive. 6th edition, Transpress Verlag, Berlin 1987; ISBN 3-344-00173-6 , description of the E 90

Web links

Commons : Bavarian EP 2  - collection of images, videos and audio files