Baden A3
| Baden A 3 DR series E 61 2 |
|
|---|---|
| Numbering: | A3 1 and 2 DR E 61 21 and E 61 22 |
| Number: | 2 |
| Manufacturer: | MBG Karlsruhe , BBC |
| Year of construction (s): | 1913 |
| Retirement: | 1931 |
| Axis formula : | 1'C1 ' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 11,960 mm |
| Fixed wheelbase: | 3600 mm |
| Total wheelbase: | 8160 mm |
| Service mass: | 70.0 t |
| Friction mass: | 43.3 t |
| Top speed: | 70 km / h |
| Hourly output : | 660 kW at 50 km / h |
| Continuous output : | 590 kW |
| Starting tractive effort: | 93 kN |
| Coupling wheel diameter: | 1480 mm |
| Impeller diameter: | 990 mm |
| Power system : | 15 kV 16 2/3 Hz |
| Power transmission: | Overhead line |
| Number of traction motors: | 2 Déri engines |
| Type of speed switch: | Brush shift |
| Brake: | Compressed air brake tool |
In the species A 3 the associated Badische State Railways two electric locomotives for passenger and Eilzugbetrieb on the Wiesentalbahn and wehra valley railway a. The locomotives came to the Deutsche Reichsbahn in 1920 , were given the operating numbers E 61 21 and E 61 22 in 1926 and were designated as the E 61 2 series.
history
In addition to the class A 2 locomotives, the Baden State Railroad ordered two locomotives that were supposed to reach a maximum speed of 70 km / h. The production took place in 1912/1913 in the mechanical engineering company Karlsruhe . Brown, Boveri & Cie. Supplied the electrical part . The locomotives were stationed in the Basel depot . However, the construction of the machines was not convincing. In addition to technical problems, maintaining the traction motors was also very complex.
The locomotives were finally retired on March 16, 1931.
Constructive features
The main frame cheeks were stiffened by the buffer beam, the drive motor brackets and cross connections. The locomotive body consisted of a steel section clad with sheet steel. The end cabs were lined with wood inside. The locomotive body was heavily sloped towards the ends . The roof hood with blind openings was removable.
The locomotive had an Adam frame with a reset device at the front and a Nowotny wheel set without a reset device at the rear . The coupling axles were firmly mounted in the frame, the middle wheel set had a weakened wheel flange. The suspension of the coupled wheel sets was provided by leaf springs located under the axles .
The two externally ventilated ten-pole Déri motors with two commutators acted without translation by means of inclined drive rods on the central coupling axis. The other two axes were connected by slotted coupling rods. This enabled the spring play of the wheel sets to be compensated. Driving and coupling rods were in one plane of movement.
The pantographs driven by compressed air had a bow separator. The choke coil served as overvoltage protection. The main and heating transformers were oil-cooled. On the secondary side, the main transformer had an outlet for 1200 V.
The control of the drive motors was carried out by means of steplessly pneumatically adjustable brushes that were attached to rotating iron rings.
An electrically heated steam boiler with two water storage tanks of 0.45 m³ under the floor plate served to heat the train.
literature
- Hermann Lohr, Georg Thielmann: Baden locomotive archive . transpress, Berlin 1988, ISBN 3-344-00210-4 .
- Dieter Bäzold, Günther Fiebig: German Locomotive Archive: Electric Locomotives . transpress, Berlin 1992, ISBN 3-344-70748-5 .