MÁV series V40
| MÁV series V40 | |
|---|---|
 V40 016 in a railway museum (2005)
|
|
| Numbering: | V40.001-029 |
| Number: | 29 |
| Manufacturer: | Ganz & Cie , Budapest |
| Year of construction (s): | 1932-1937 |
| Retirement: | around 1960 |
| Axis formula : | 1'D1 ' |
| Type : | Kandó |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 13,830 mm |
| Service mass: | 94 t |
| Friction mass: | 66.2 t |
| Wheel set mass : | 17 t |
| Top speed: | 100 km / h |
| Continuous output : | 3,500 hp at 75 km / h |
| Continuous tensile force: | 96 kN |
| Driving wheel diameter: | 1,660 mm |
| Power system : | 15 kV 50 Hz |
| Power transmission: | with phase converter |
| Number of traction motors: | 1 |
| Drive: | Angular rod drive type Kandó |
| Brake: | Handbrake air brake |
| Particularities: | first series locomotive with phase converter |
The MÁV V40 series was an electric locomotive of the Hungarian state railways MÁV and the first standard with the Kandó-pinion drive equipped electric locomotive .
history
In Hungary, electricity for the electrification of rail traffic could be drawn most economically from the nationwide 50 Hz system. Therefore developed Kálmán Kandó named after him drive system based on single-phase - overhead contact lines and three-phase - traction motors based as driving. The conversion of the current for the traction motor is done by the so-called phase converter . After a test locomotive from Budapest confirmed the theoretical considerations from 1923 onwards , the line from Budapest to Hegyeshalom was electrified with the 15 kV 50 Hz power system from 1932 to 1935 . The first series-operated locomotives were the vehicles of the MÁV V40 series.
The locomotives are universal locomotives with a maximum speed of 100 km / h. A total of 29 locomotives of this series were used on the route mentioned. In the 1960s, the traction current system in Hungary was uniformly converted to 25 kV 50 Hz. That was the reason to retire the Kandó locomotives and replace them with newer series . From the MÁV V40 series, the V40.001 is said to have been preserved as a monument locomotive (the locomotive had a plaque commemorating its inventor Kálmán Kandó as early as 1933). The V40.016 has been preserved in the Budapest Railway History Park after having stood at Budapest East Station for years .
technical features
The single-phase alternating current taken over by the contact line was converted into three-phase current with the phase converter and transferred to the traction motor with the optimal power factor. That was the reason why the MÁV V40 series was operated with a rod drive: the phase conversion to several individually driven traction motors was not yet mastered.
The primary component of the locomotive was the liquid starter , which served as a so-called accelerator between the continuous speed levels. This unit worked as a fluid resistance, which enabled a steady acceleration when starting and when changing to a higher speed level. A 0.5 percent soda solution served as the resistance element, which reached an ever higher level when the locomotive started up and when accelerating, thereby ensuring a connection of steadily decreasing resistance between the electrode plates. The engine driver could set the acceleration on a separate lever next to the speed level.
Mechanically, the locomotive was designed as a single-frame locomotive. The second and third drive axles had side play. The running axles were combined with the neighboring drive axle in a Krauss-Helmholtz steering frame.
See also
literature
- Mihály Kubinszky (ed.): Hungarian locomotives and railcars . Akadémiai Kiadó, Budapest 1975, ISBN 963-05-0125-2 .
- General Directorate of MÁV , Autonomous Department for Press, Advertising and Propaganda (Ed.): Railway nostalgia in Hungary . Hungaria Sport Egri Nyomda, Eger 902436.
