Bavarian EP 4
| Bavarian EP 3/6 (II) (EP 4) DR series E 36 2 |
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 Factory photo
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| Numbering: | EP 3/6 20121 to 20124 E 36 21 to E 36 24 |
| Number: | 4th |
| Manufacturer: | Krauss & Co. , Mechanics / Maffei - Schwartzkopff -Werke (MSW), Electronics |
| Year of construction (s): | 1915 |
| Retirement: | 1935-1937 |
| Axis formula : | 1'C2 ' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 13,550 mm |
| Length: | 12,250 mm |
| Total wheelbase: | 9,750 mm |
| Service mass: | 93.7 t |
| Friction mass: | 50.1 t |
| Wheel set mass : | 16.8 t |
| Top speed: | 80 km / h |
| Hourly output : | 960 kW at 45 km / h |
| Continuous output : | 740 kW at 80 km / h |
| Starting tractive effort: | 161.9 kN |
| Hourly traction: | 76.9 kN |
| Continuous tensile force: | 33.4 kN |
| Performance indicator: | 10.25 kW / t |
| Driving wheel diameter: | 1150 mm |
| Impeller diameter: | 850 mm |
| Power system : | 15 kV, 16 2/3 Hz AC |
| Power transmission: | Overhead line |
| Number of traction motors: | 1 single-phase series motor |
| Drive: | Helical rod drive |
| Translation levels: | 16 + 3 overload levels |
| Control: | Load switch / cam switch control with additional transformer |
The Bavarian EP 4 was an electric passenger locomotive series of the Royal Bavarian State Railways for use on the Freilassing – Berchtesgaden line .
history
The Salzburg – Freilassing – Berchtesgaden line was electrified between 1912 and 1914. The Bavarian State Railroad wanted to test electric train operations with it. On October 20, 1912, twelve test locomotives were ordered for this purpose. These included the four EP 3 and EP 4. In contrast to the EP 3, the electrical part of the EP 4 locomotives was not supplied by SSW , but by MSW , a network of Maffei and Schwartzkopff . These locomotives were also only in use on their intended route from 1916. From 1926 the four locomotives were designated as E 36 21 to E 36 24 and had the class designation E 36 2 .
In contrast to the E 36, these locomotives were somewhat stronger, but had poorer running characteristics. The wheel flange wear is said to have remained within acceptable limits. Mission data cannot be found in the literature, so the assumption that it was always at home in Freilassing and deployed on the Freilassing-Berchtesgaden route must be considered correct. Her retirement dates are between 1935 and 1937.
technical features
The locomotives were approx. 2 m longer than the E 36 and differed from it in several details. The most obvious external difference to it was that the boiler was placed more in the middle, so that the pantographs could be placed above the driver's cabs. Like the E 36, the locomotives were equipped with a helical rod drive with a drive rod on one side. In terms of running gear, they had a Bissel frame instead of the Krauss-Helmholtz steering frame . The first and second coupling axles were firmly mounted in the frame, with the second coupling axle having wheel tires weakened by 15 mm. The lateral displacement of the Bissel frame was ± 54 mm, in the Krauss-Lotter frame the coupling axis had ± 30 mm and the bogie ± 34.2 mm.
The frame of the locomotive was an inner frame with strong frame sides. They were stiffened by the buffer beams, several cross members, e.g. B. the bracket for the main transformer and the castings for the motor mounting. The locomotive body was made of sectional steel frame and sheet metal cladding, the driver's cab was clad inside with wood. There was a central transition door in each front wall. The roof could partially be lifted off, the position above the boiler was included.
The main transformer of the locomotive was an oil-cooled type, it had seven taps for the traction motor control on the secondary side. Two taps for the electric train heating were added later. The drive motor corresponded to that of the E 01 and E 30 , it was a 40-pole single-phase series motor with reversing pole winding , double armature winding and two commutators . The locomotive was controlled in the same way as that of the E 01 and E 30 . It was a manually operated drum control with an additional transformer and enabled 16 continuous speed levels and three overload levels.
literature
- Dieter Bäzold, Günther Fiebig: Railway vehicle archive 4: Electric locomotives of German railways. 1st edition. Alba-Verlag, Düsseldorf 1984, ISBN 3-87094-093-X / 5th edition. Transpress Verlag, Berlin 1984
Web links
- Data sheet on lokodex.de
- short description of the locomotive on elektrolok.de
Individual evidence
- ↑ a b c d Dieter Bäzold, Günther Fiebig: Railway vehicle archive 4: Electric locomotives of German railways. 1st edition. Alba-Verlag, Düsseldorf 1984, ISBN 3-87094-093-X / 5th edition. Transpress Verlag, Berlin 1984, description of the E 36 2
- ↑ Brief description of the locomotive on www.elektrolok.de ( Memento of the original from November 10, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
