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RjB 9 and 10

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Identical electric locomotives in Norway
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RjB 9 and 10
Side view of Rj.B 9 at Rjukan station in July 2012
Type and origin
Power typeElectric
BuilderSécheron (electrical)
Jung (mechanical)
Serial number8725
12846–12847
Build date1958
Total produced2
Specifications
Configuration:
​
 • UICBo'Bo'
Gauge1,435 mm (4 ft 8+1⁄2 in)
Length13,150 mm (43 ft 2 in)
Loco weight60 t
Electric system/s10 kV 16+2⁄3 Hz AC, 15 kV  16.7 Hz AC
Current pickup(s)Pantograph
Performance figures
Maximum speed55 km/h (34 mph)
Power output732 kW (cont.) / 830 kW (1-hour)
Career
OperatorsNorsk Transport
Official name9, 10

RjB 9 and RjB 10 were two identical electric locomotives operated by Norsk Transport on Rjukanbanen in Norway. Built by Swiss Sécheron and German Jung in 1958, they served until the closing of the line in 1991.

The locomotives were equipped with four 183 kW motors, giving 732 kW in total. They could operate at 55 km/h, and were built for both 10 kV and 15 kV electrical systems; the former was used on Rjukanbanen until the older RjB 1–8 were retired in 1966, and the power changed to the standard of Norges Statsbaner.

A b/w photograph of unit # 9 heading a freight working en route appeared in "Locomotives made in Germany", 1966 ed., pg.15 bottom; issued by "Exportfoerderungsverband der deutschen Lokomotivindustrie", DE-Frankfurt/Main 1966, softcover, quadrilingual. Rating given at 830 kW by the caption; factor 1,13 reflects the ratio between a 1-hourly rating and a continuous rating (as likely given in the text here) for series-wound, directly-fed, single-phase ac electric motors. Unfortunately, no further detail was issued. Mechanical design reflects that of the shorter, yet heavier dual-power Bo'Bo' 600 V DC o/h-fed electric / diesel-electric locomotives supplied by Jung to the "E&H" docklands and smelting works railways of Duisburg-Hamborn at the same time.

  • Rj.B 9 at Rjukan station July 2012 Rj.B 9 at Rjukan station July 2012
  • Rj.B 9 at Rjukan station July 2012 Rj.B 9 at Rjukan station July 2012
  • Rj.B 9 at Rjukan station July 2012 Rj.B 9 at Rjukan station July 2012
  • Rj.B 9 at Rjukan station Juli 2012 Rj.B 9 at Rjukan station Juli 2012
  • Rj.B 9 at Rjukan station July 2012 Rj.B 9 at Rjukan station July 2012
  • The cab front, Rj.B 9 at Rjukan station July 2012 The cab front, Rj.B 9 at Rjukan station July 2012
  • Cab, left side, Rj.B 9 at Rjukan station July 2012 Cab, left side, Rj.B 9 at Rjukan station July 2012
  • Cab, right side, Rj.B 9 at Rjukan station July 2012 Cab, right side, Rj.B 9 at Rjukan station July 2012
  • Inside cab, side, Rj.B 9 at Rjukan station July 2012 Inside cab, side, Rj.B 9 at Rjukan station July 2012
  • View forward, Rj.B 9 at Rjukan station July 2012 View forward, Rj.B 9 at Rjukan station July 2012
  • Roof equipment, Rj.B 9 at Rjukan station July 2012 Roof equipment, Rj.B 9 at Rjukan station July 2012
  • High voltage cable from Roof in front of the cab, Rj.B 9 at Rjukan station July 2012 High voltage cable from Roof in front of the cab, Rj.B 9 at Rjukan station July 2012

References

  1. ^ Payton, Gary & Lepperød, Trond (1995). Rjukanbanen; på sporet av et industrieventyr (in Norwegian). Rjukan: Mana Forlag. p. 188. ISBN 82-993549-1-9.


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