railroad.wikisort.org - TrainThe South African Railways Class 9E, Series 2 of 1982 is an electric locomotive.
Class of 6 South African electric locomotives
South African Class 9E, Series 2 |
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 E9030 at Saldanha, Western Cape in July 2009 |
Type and origin |
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Power type | Electric |
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Designer | General Electric Company |
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Builder | Union Carriage & Wagon |
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Serial number | 5595-5600 |
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Model | GEC 9E |
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Build date | 1982-1983 |
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Total produced | 6 |
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Specifications |
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Configuration:
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• AAR | C-C |
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• UIC | Co'Co' |
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• Commonwealth | Co-Co |
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Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
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Wheel diameter | 1,220 mm (48.03 in) |
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Wheelbase | 16,290 mm (641+3⁄8 in) |
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• Bogie | 3,940 mm (12 ft 11+1⁄8 in) |
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Pivot centres | 12,700 mm (41 ft 8 in) |
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Length:
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• Over couplers | 21,132 mm (69 ft 4 in) |
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• Over beams | 20,120 mm (66 ft 1⁄8 in) |
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Width | 2,900 mm (9 ft 6+1⁄8 in) |
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Height:
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• Pantograph | 3,900 mm (12 ft 9+1⁄2 in) |
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• Body height | 3,900 mm (12 ft 9+1⁄2 in) |
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Axle load | 28,000 kg (62,000 lb) max |
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Adhesive weight | 166,300 kg (366,600 lb) |
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Loco weight | 166,300 kg (366,600 lb) |
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Electric system/s | 50 kV AC 50 Hz catenary |
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Current pickup(s) | Pantograph |
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Traction motors | Six G415AZ |
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• Rating 1 hour | 690 kW (930 hp) |
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• Continuous | 640 kW (860 hp) |
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Gear ratio | 18:83 |
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Loco brake | Air & Rheostatic |
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Train brakes | Air & Vacuum Wabco "Vaporid" air dryer |
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Couplers | AAR knuckle |
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Performance figures |
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Maximum speed | 90 km/h (56 mph) |
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Power output:
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• 1 hour | 4,140 kW (5,550 hp) |
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• Continuous | 3,840 kW (5,150 hp) |
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Tractive effort:
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• Starting | 570 kN (130,000 lbf) |
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• 1 hour | 483 kN (109,000 lbf) |
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• Continuous | 388 kN (87,000 lbf) |
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Career |
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Operators | South African Railways Spoornet Transnet Freight Rail |
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Class | Class 9E |
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Number in class | 6 |
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Numbers | E9026-E9031 |
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Locale | Sishen-Saldanha Orex line |
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Delivered | 1982-1983 |
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First run | 1982 |
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In 1982 and 1983, the South African Railways expanded its existing Class 9E fleet by placing six new Class 9E, Series 2 General Electric Company 50 kV AC electric locomotives with a Co-Co wheel arrangement in service on the Sishen-Saldanha iron ore line.[1]
Manufacturer
The 50 kV AC Class 9E, Series 2 electric locomotive was designed for the South African Railways (SAR) by the General Electric Company (GEC) and was built by Union Carriage & Wagon (UCW) in Nigel, Transvaal.[2]
GEC works numbers were allocated to Class 9E locomotives. UCW delivered six locomotives in 1982 and 1983, numbered in the range from E9026 to E9031.[1]
Characteristics
The locomotive has a single full width air conditioned cab. At the rear end, the body work is lower to provide clearance for the 50 kV AC electrical equipment which is mounted on the roof. This consists of a single pantograph, a potential divider, a vacuum circuit breaker, a surge diverter and the main transformer’s high voltage terminal. The electrical control system is solid state, using thyristors.[3]
Since huge voltage drops are often encountered between electric sub-stations, the locomotive was designed to be able to operate on a supply varying between 55 and 25 kV AC. The battery boxes and the main air reservoirs are mounted between the bogies underneath the frame, where a compartment also houses a small motor scooter for use by the crew for lineside inspections of the train, which can be up to nearly 4 kilometres (2.5 miles) long.[3]
Series 2 locomotives were delivered with five braking systems; air brakes for the locomotive, train air braking, train vacuum braking, a handbrake and dynamic rheostatic braking which can dissipate 4,200 kilowatts (5,600 horsepower). The Series 1 locomotives were delivered without a vacuum brake system.[3]
By 2007, the entire fleet of both series of Class 9E electric locomotives were upgraded with Alstom's Agate train control and communication technology. The pantographs on most of these locomotives were also replaced by the single arm type.[4]
The Series 1 and Series 2 Class 9Es can be visually distinguished from each other by their bogies, which were redesigned for the Series 2 locomotives.[1]
Service
Class 9E locomotives are used on the 861-kilometre long (535-mile) Sishen-Saldanha iron ore line to haul export ore from the open cast iron mines at Sishen in the Northern Cape to the harbour at Saldanha in the Western Cape. Most of the route is across the hot and dry Northern Cape, but the last 75 kilometres (47 miles) to Saldanha runs parallel to the Atlantic coastline and is subjected to the fog and corrosive sea air of the West Coast.[3][5]
Liveries
The whole series was delivered in the SAR red oxide livery with signal red cowcatchers, yellow whiskers and with the number plates on the sides mounted on three-stripe yellow wings. In the late 1990s they were all repainted in the Spoornet blue livery with either solid or outline numbers on the sides.[5][6]
Illustration
No. E9026 in Spoornet blue with solid numbers at Saldanha, 12 September 2007
Right side view of no. E9027, Salkor yard, Saldanha, 14 July 2011
Rear end view of no. E9031, Salkor yard, Saldanha, 14 July 2011
References
- South African Railways Index and Diagrams Electric and Diesel Locomotives, 610mm and 1065mm Gauges, Ref LXD 14/1/100/20, 28 January 1975, as amended
- "UCW - Electric locomotives" (PDF). The UCW Partnership. Archived from the original (PDF) on 12 October 2007. Retrieved 30 September 2010.
- Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 129–131. ISBN 0869772112.
- Information supplied by Transnet Freight Rail staff
- Middleton, John N. (2002). Railways of Southern Africa Locomotive Guide - 2002 (as amended by Combined Amendment List 4, January 2009) (2nd, Dec 2002 ed.). Herts, England: Beyer-Garratt Publications. pp. 50, 62.
- Soul of A Railway, System 7, Western Transvaal, based in Johannesburg, Part 9. South-Eastwards as far as Volksrust (2nd part) by Les Pivnic. Caption 4. (Accessed on 11 April 2017)
General Electric Company |
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Former subsidiaries and divisions |
- GEC Computers
- GEC Medical
- GEC Research
- GEC Traction
- Hirst Research Centre
- Marconi Company
- Marconi Electronic Systems
- Marconi Instruments
- Marconi-Osram Valve
- Marconi Research Centre
- Osram
- Vickers Shipbuilding & Engineering
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Former joint ventures |
- Alenia Marconi Systems
- GEC Alsthom
- GEC Plessey Telecommunications
- Matra Marconi Space
- Thomson Marconi Sonar
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Predecessors and acquisitions |
- Associated Electrical Industries
- Birlec
- British Thomson-Houston (BTH)
- Edison Swan
- Hotpoint
- Metropolitan-Vickers
- Siemens Brothers & Co
- William Thomas Henley
- A.B. Dick Company
- English Electric
- Dick, Kerr & Co
- Elliott Brothers
- Marconi Company
- Ruston & Hornsby
- Robert Stephenson & Hawthorns
- Vulcan Foundry
- Willans & Robinson
- Gilbarco Veeder-Root
- Radio & Allied Industries
- Tracor
- W & T Avery
- Yarrow Shipbuilders
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Successors | |
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Products | Computers |
- GEC 2050
- GEC 4000 series
- GEC Series 63
- OS4000
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Locomotives | |
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People |
- Cyril Hilsum
- Baron Hirst
- George Simpson
- Martin Sixsmith
- Michael Sobell
- Arnold Weinstock
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Other |
- GEC-Marconi scientist deaths conspiracy theory
- Phoebus cartel
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Category
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