Prussian EV 1/2
German Reichsbahn E 73 03
Germany 1908 1 produced
The EV 1/2 was built to test electric operation on a circuit track. It was supposed to provide information on wear and tear, partly remotely controlled, in continuous operation 20 hours a day. It was composed of two parts, each with two axles, and only received three nose-suspended traction motors ex works. However, the fourth traction motor was supplied and installed after testing when the locomotive came to the Hamburg Port Railway. In the Reichsbahn it became E 73 03 and was decommissioned in 1932.
Technical data
General
| Property | as built | rebuilt |
|---|---|---|
| Built | 1908 | |
| Manufacturers | mechanical part: Vulcan, electrical part: AEG | |
| Wheel arrangement | A1+B | B+B |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | as built | rebuilt |
|---|---|---|
| Length | 14.14 m | |
| Service mass | 59.5 t | 68.3 t |
| Adhesion mass | 48 t | 68.3 t |
| Rigid wheelbase | 3.30 m | |
| Axle load | 16 t | 17.1 t |
Power
| Property | as built | rebuilt |
|---|---|---|
| Power source | electric - AC | |
| Hourly power | 775 kW (1,054 PS) | 1,080 kW (1,468 PS) |
| Top speed | 50 km/h | |
| Starting effort | 132.0 kN | 170.0 kN |
Calculated values
| Property | as built | rebuilt |
|---|---|---|
| Factor of adhesion | 1 : 3.57 | 1 : 3.94 |
| Power-to-weight ratio | 13.0 kW/t | 15.8 kW/t |
| Adhesive weight/Total | 1 : 1.24 | 1 : 1.00 |
