VGN class EL-2B
| VGN EL-2B | |
|---|---|
 |
|
| Numbering: | EL-2B 125-128 sections: EL-37-EL-44 |
| Number: | 4th |
| Manufacturer: | General Electric |
| Year of construction (s): | 1948 |
| Retirement: | 1959 |
| Axis formula : | (Bo'Bo ') - (Bo'Bo') + (Bo'Bo ') - (Bo'Bo') |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 45,920 mm |
| Height: | 4,720 mm |
| Fixed wheelbase: | 3,380 mm |
| Total wheelbase: | 40,779 mm |
| Service mass: | 450 t |
| Top speed: | 80 km / h |
| Hourly output : | 5100 kW (6800 hp) |
| Starting tractive effort: | 1160 kN |
| Continuous tensile force: | 720 kN at 25.2 km / h |
| Driving wheel diameter: | 1100 mm |
| Power system : | 11 kV 25 Hz ~ |
| Power transmission: | Catenary |
| Number of traction motors: | 16 x GE 746 |
| Drive: | Pawbearing drive |
The electric locomotives EL-2B of the Virginian Railway were double locomotives for 11 kV 25 Hz alternating current supplied by General Electric (GE) for the transport of coal trains on the electrified Elmore - Roanoke section of the main line of the railway.
history
To strengthen the fleet of EL-3A locomotives, the company ordered four EL-2B series locomotives in 1945, which were designed to pull 6000 t-trains on a 13 - ‰ - ramp at 56 km / h. The locomotives were built at GE's Erie plant and delivered in 1948. After delivery of the EL-1C locomotives, a double locomotive was separated and its sections were used in the pushing service from Whitethorne. The locomotives were in use until the electrical operation of the Virginian Railway ceased in 1962 and were then scrapped. No locomotive has survived for posterity.
technology
An EL-2B locomotive consisted of two sections that were connected by semi-permanent couplings. Each section was operational on its own, with the front section carrying two pantographs and the rear only one. The second pantograph was unusually located roughly in the middle of the locomotive body. All pantographs and the sections with each other were connected with a roof line.
Each section had a locomotive body with a streamlined front section that rested on two auxiliary frames that were connected to one another with close couplers. The locomotive body therefore did not transmit any tensile or compressive forces, as the couplings were attached directly to the subframe, under each of which two two-axle bogies with paw-bearing motors were arranged.
The locomotive was designed as a so-called converter locomotive , in which the single-phase alternating current from the contact line on the locomotive was converted into direct current to supply the traction motors with the help of a rotating converter .
The current from the contact line was fed via the pantograph to a main transformer, where the voltage was reduced. The converter, which consisted of a single-phase synchronous motor that drove two direct current generators that generated the voltage for the 4-pole traction motors, was connected to the secondary side of the transformer .
Individual evidence
- ↑ Kevin EuDaly: The Electric Virginian / Virginians New Electrics meet all requirements . In: The Arrow . Vol. 30, No. 3 , 2014.
- ↑ Skin: The history of electric traction vehicles: Volume 1: The history of the electric locomotive . Springer-Verlag, 2013, ISBN 978-3-0348-6519-7 , pp. 68 ( Google Book [accessed June 19, 2016]).
- ↑ Tom Sink: VGN 125 Virginian Railway GE EL-2B at Whitehorne, Virginia. In: www.railpictures.net. Retrieved June 19, 2016 .
- ^ William D. Middleton: When the Steam Railroads Electrified . Indiana University Press, 2001, ISBN 978-0-253-33979-9 , chap. 199 ( Google Book [accessed June 19, 2016]).
