Indian Railway passenger class electric locomotive
1,055 mm (3 ft
5+1⁄2 in)
Full worn:1,016 mm (3 ft 4 in)
Wheelbase | 1,735 mm (5 ft 8 in) |
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Length:
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• Over beams | 18.794 m (61 ft 7+29⁄32 in) |
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• Over body | 17.500 m (57 ft 4+31⁄32 in) |
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Width | 3.179 m (10 ft 5+5⁄32 in) |
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Height | 4.272 m (14 ft 3⁄16 in) |
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Frame type | Flexicoil (cast steel bogies); primary and secondary wheel springs with bolsters |
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Axle load | 18,800 kg (41,400 lb) |
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Loco weight | 112,000 kg (247,000 lb) |
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Sandbox cap. | 8 Sandboxes |
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Power supply | 110v DC |
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Electric system/s | 25 kV 50 Hz AC Overhead |
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Current pickup(s) | pantograph |
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Traction motors | Alstom TAO 659 |
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Loco brake | Air |
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Train brakes | Air, Dual |
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Safety systems | Slip control, Over voltage relay, Main overload relay, Earth Fault Relay, Low Pressure Governor, Brake Cylinder Cutoff Valve, Train parting alarms and No OHE volt relay |
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Performance figures |
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Maximum speed | 130 km/h (81 mph) |
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Power output | MAX:3900HP Continuous: 3,760 hp (2,804 kW) |
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Tractive effort:
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• Starting | 22,400 kgf (220 kN) |
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• 1 hour | 22,400 kgf (220 kN) |
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Career |
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Operators | Indian Railways |
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Class | WAP-3 |
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Numbers | 22003, 22005-22009 and 22034, 22051, 220052 |
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Nicknames | Jawahar |
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Locale | All over India |
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Delivered | 1987 |
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First run | 1988 |
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Withdrawn | February 2017 |
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Preserved | 1 (as Loco pilot trainer) |
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Disposition | All reverted to WAP-1 and in service. |
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The Indian locomotive class WAP-3 was a class of 25 kV AC electric locomotives that was designed by Research Design and Standards Organization (RDSO) and Chittaranjan Locomotive Works (CLW) for Indian Railways in 1987. The model name stands for Broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 3rd generation (3). They entered service in 1988. They were the faster variant of the previous WAP-1 class. A total of 9 WAP-3 were converted from existing WAP-1 units at CLW between 1987 and 1988. All locomotives were now withdrawn from service and converted back to WAP-1.
History
The history of the WAP-3 begins in the early 1980s with the WAP-1 class. The WAP-1 was the first attempt to create a dedicated High-speed electric passenger locomotive.[1] They were first used on the Howrah Rajdhani Express.[2] But Indian railways were not satisfied with the performance of the WAP-1 as they could haul around 19 coaches at a max speed of 120 km/h. So Indian Railways decided to procure a faster version of the WAP-1.[3]
The WAP-3 was ordered from CLW to the design of RDSO. The Flexicoil cast steel bogies of the WAP-1 was replaced by Flexicoil Mark II versions. This increased max speed to 140 km/h. Five prototype locomotives of this type were made from existing WAP-1 units. The first prototype WAP-1 numbered '22005 jawahar' was put into service in 1988. Initially these locomotives were classified as WAP-1 FM II[4] with FM II standing for " Flexicoil Mark II " and were certified to run at 130 km/h between Jhansi and lalitpur section.[5] Later Flexicoil Mark 4 bogies were provided for Subsequent WAP-3 which increased max speed to 160 km/h.
They were first used on the Taj Express and then various shatabdi express.[6][7] The Bhopal shatabdi used to run with WAP-3 for some time.[8] But as trains got longer the WAP-3 struggled to perform and required banking locomotives on moderately graded sections, and so did not meet their design goals these were reverted to WAP-1 class again.
The WAP-3 and WAP-1 provided the basis for the WAP-4 class.
Locomotive sheds
The current list of former WAP-3 class
Loco No | Current Shed | Status | Current class | Comment | REF |
22003 | Arakkonam(AJJ) | Training Loco | WAP-1 | converted to training loco with glass panels in bodyside | [9] |
22005 | Arakkonam(AJJ) | In service | WAP-1 | Loco name-Jawahar, | [10] |
22006 | Tughlakabad(TKD) | In service | WAP-1 | Loco name-Rajhans, | [11] |
22007 | Arakkonam(AJJ) | In service | WAP-1 | | [12] |
22008 | Arakkonam(AJJ) | In service | WAP-1 | | [13] |
22009 | Arakkonam(AJJ) | In service | WAP-1 | | [14] |
22034 | Tughlakabad(TKD) | In service | WAP-1 | | [15] |
22051 | Tughlakabad(TKD) | In service | WAP-1 | Now a WAP-4 | [16] |
22052 | Tughlakabad(TKD) | In service | WAP-1 | | [17][18] |
See also
References
- ^ "[IRFCA] A Brief History of Railway Electrification in India". www.irfca.org. Retrieved 2019-06-19.
- ^ https://rdso.indianrailways.gov.in/works/uploads/File/raj-icf17.pdf [bare URL PDF]
- ^ "Electric Locomotive Roster: The WAP Series!". 3 September 2016.
- ^ "WAP-3 name" (PDF).
- ^ "Speed certificate" (PDF).
- ^ "wap1_jawahar_taj_exp.jpg". www.irfca.org. Retrieved 2020-05-20.
- ^ "WAP-3 RDSO" (PDF).
- ^ Departing from New Delhi - Bhopal Shatabdi Footplate (August 1995), retrieved 2020-05-20
- ^ Maharshi, Tageeru Anubharadwaj. "2217080-0: Modal Locomotive AJJ 22003 WAP1 ARAKKONA - Railway Enquiry". indiarailinfo.com.
- ^ "[IRFCA] Indian Railways Locomotive Roster Arakkonam (AJJ) WAP-1 22005 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Tughlakabad (TKD) WAP-1 22006 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Arakkonam (AJJ) WAP-1 22007 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Arakkonam (AJJ) WAP-1 22008 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Arakkonam (AJJ) WAP-1 22009 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Tughlakabad (TKD) WAP-1 22034 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Mughalsarai (MGS) WAP-4 22051 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "[IRFCA] Indian Railways Locomotive Roster Tughlakabad (TKD) WAP-1 22052 Show". www.irfca.org. Retrieved 2020-05-20.
- ^ "2_G.jpg". www.irfca.org. Retrieved 2020-05-20.
External links
Wikimedia Commons has media related to Indian locomotive class WAP3.