LEW EL 4
| Industrial locomotive
EL 4 series |
|
|---|---|
 L2 of the BEHALA
|
|
| Number: | 37 |
| Manufacturer: | LEW |
| Year of construction (s): | 1960-1971 |
| Axis formula : | Bo |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 7200 mm |
| Height: | 3400 mm |
| Width: | 3050 mm |
| Fixed wheelbase: | 2500 mm |
| Service mass: | 25-35 t |
| Top speed: | 40 km / h |
| Hourly output : | 2 × 140 kW, 2 × 120 kW |
| Continuous output : | 230 kW, 96 kW |
| Starting tractive effort: | 88.3 kN |
| Driving wheel diameter: | 950 mm |
| Power system : | 600 V, 750 V, 1200 V = |
| Power transmission: | Overhead line |
| Number of traction motors: | 2 |
| Type of speed switch: | Cam switch |
| Brake: | Compressed air and electrical resistance brake |
| Coupling type: | Screw coupling, SA-3 |
| Particularities: | additional pantographs possible |
The EL 4 series of the LEW Hennigsdorf is the name of an electric locomotive that was built from 1960 to 1971 in 37 copies.
development
Compared to the other standard gauge series developed by LEW (especially for the lignite industry of the GDR) such as the EL 2 , the low power and the low axle mass are particularly noticeable. These clearly indicate the intended use: The brown coal locomotives were developed for the traction of heavy trains on a correspondingly strong superstructure . In contrast, the EL 4 is a locomotive for works railways , which often only move a few cars on a light superstructure at low speeds.
Due to the small number of electrically operated factory railways, the EL 4 never reached larger numbers in the GDR. Over 30 of them went to socialist countries abroad, some of them equipped with buffers and screw couplings or with SA-3 couplings. Four of the locomotives were delivered to companies in the Berlin area, one machine went to Thuringia. Four of the locomotives are still preserved today, one of which is back in service with the Buckower Kleinbahn .
technology
Mechanical part
The LEW EL 4 has a box frame made of sheet metal and profiles in a welded construction, supported by leaf springs. The wheel sets consist of disc wheels with axle plain bearings and shrunk-on wheel tires . The compressed air for the brakes and auxiliary systems is generated by a 50 m³ piston compressor . The air intake for the traction motors takes place via a stem (for the 600 V GS version). Devices are arranged in the removable stems with flaps.
Electrical part
The speed levels are selected using a manually operated cam switch. Braking is done with a self-excited, crossed brake circuit that controls the self-ventilated starting and braking resistors. Main pantograph or additionally with two side pantographs using lifting / rotating technology. The lighting is operated directly with contact line voltage; there is no separate control.
Use and whereabouts
The first EL 4 built was the machine with the serial number 9890 from 1960, it was delivered to the glass works in Stralau in June 1960 . In 1974 the locomotive was no longer needed there and handed over to the Strausberger Eisenbahn , which used it as number 14 in freight traffic on the former small railroad through Strausberg.
Another EL 4 with the serial number 10051 was delivered brand new to the Strausberger Eisenbahn in 1963, where it replaced a 40-year-old, significantly weaker electric locomotive with the number 15 . Both EL 4s were used together in freight transport until after reunification. After this was discontinued, both locomotives were handed over to the Buckower Kleinbahn operated as a museum railway in 2004 and 2005 respectively .
In 1964, the Berlin Ostbahnhof railway post office received two EL 4 locomotives with the serial numbers 10046 and 10047, which were used there to move the mail cars . After about 15 years, both locomotives came to the Berlin-Oberschöneweide freight railway ("Bullenbahn"), which at the time belonged to the Berlin tram . They were given the company numbers L1 and L2 . The locomotives were therefore located in the Nalepastraße tram depot and were also serviced. After BEHALA took over the “Bullenbahn” , the two EL 4s were given a new home in the Osthafen after reunification , but were parked shortly afterwards. The L2 stands today as a monument at the BEHALA administration in the Westhafen , the L1 is said to have been given to the Railway and Technology Museum Rügen in 1995.
The fifth EL 4 is the locomotive with the serial number 12821, which was delivered in 1972 by LEW to the factory railway of the Bad Berka cement and mineral wool works . There it was given the company number III and was converted from the delivery design (600 V DC) to the company's own power system with 220 volts direct current. It replaced a locomotive built in 1898, which originally came from the three-phase test railway Marienfelde − Zossen and is now exhibited in the Dresden Transport Museum. The EL 4 was used until the closure of the works railway in Bad Berka and has been in the Weimar Railway Museum since March 23, 2010 .
Picture gallery
Strausberg locomotive 14 (2012)
Berlin Westhafen L2 (2009)
Strausberg locomotive 15 (2012)
TEV Weimar Locomotive III (2011)
.JPG)
swell
- ↑ according to Behala - documents
