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From Wikipedia, the free encyclopedia

NSB El 7
Type and origin
Power typeElectric
BuilderAEG
Skabo
Build date1911–1918
Total produced6
Specifications
Configuration:
 • AARB-B
 • UICBo'Bo'
Gauge1,435 mm (4 ft 8+12 in)
Length7.3 m (23 ft 11 in)
Loco weight48 t (47 long tons; 53 short tons)
Electric system/sCatenary
10 kV 16 ⅔ Hz AC, 15 kV 16⅔ Hz AC
Current pickup(s)Pantograph
Traction motors4
Performance figures
Maximum speed45 km/h (28 mph)
Power output368 kW (493 hp)
Career
OperatorsNorsk Transport
Norwegian State Railways
NumbersRjB.1–3, 6–8
NSB 7 2501 - 7 2502
LocaleRjukanbanen
Retired1956
Current ownerNorwegian Railway Museum

NSB El 7 was a series electric locomotives delivered between 1911 and 1918 to Norsk Transport that operated the Rjukan Line and the Tinnoset Line, where they were designated RjB.1, 2, 3, 6, 7 and 8. The locomotives were built by AEG (motor) and Skabo (chassis).[1]

The first three locomotives were delivered to the Rjukan Line along with two smaller units, RjB 4 and 5 (which were given the designation El 6 by NSB). El 7 is exactly two El 6; it has two transformers, four motors instead of two, Bo'Bo' instead of Bo axle arrangement, two pantographs, the same speed, and could haul twice the load. The locomotives cost NOK 52,090 in 1911.[1][2]

The preserved 7.2501
El 7-hauled train at Tinnoset Station in 1911

When two of the locos (no. 1 and 3) were transferred to Norwegian State Railways in 1920 after NSB took over the Tinnoset Line, where they were designated El 7 and numbered 2501 and 2502. Number 1 was sold back to Norsk Transport in 1932 while number 3 was transferred to Narvik in 1927 after it had been converted from 10 to 15 kV. It returned to Drammen in 1936 and remained there until it was taken out of service in 1956; RjB 6 was retired in 1960, the rest remained in service with Norsk Transport in 1966 when they were replaced with NSB El 1 (given numbers 14 and 15). No. 2501 is retained at the Norwegian Railway Museum.[1][2]

References

  1. ^ a b c Payton, Gary & Lepperød, Trond (1995). Rjukanbanen; på sporet av et industrieventyr (in Norwegian). Rjukan: Mana Forlag. p. 187. ISBN 82-993549-1-9.
  2. ^ a b Aspenberg, Nils Carl (2001). Elektrolok i Norge (in Norwegian). Oslo: Baneforlaget. pp. 62–65. ISBN 82-91448-42-6.

External links

This page was last edited on 15 January 2024, at 15:26
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