WAP_5

Indian locomotive class WAP-5

Indian locomotive class WAP-5

Indian Railway passenger class high speed electric locomotive

Indian locomotive class WAP-5 is a class of electric locomotives used by Indian Railways. The first ten locomotives were imported from ABB in Switzerland in 1995 and later manufactured by Chittaranjan Locomotive Works in India. On 3 July 2014, a WAP-5 set an Indian speed record by hauling a train between Delhi and Agra at a speed of 160 km/h (99 mph).[2] The locomotive has regenerative braking, flexible gear coupling, wheel-mounted disc brakes, and a potential for speed enhancement to 200 km/h (120 mph). Braking systems include 160 kN (36,000 lbf) regenerative brakes, disc brakes, automatic train air brakes and a charged spring parking brake.

Quick Facts WAP-5, Type and origin ...

Locomotive sheds

Last updated: June 2024[3]

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Variants

In October 2015, a WAP-5A locomotive (no. 30086) was rolled-out with a gear ratio of 59:35:19 capable of speeds upto 200 km/h (120 mph) for trial runs. In March 2018, a WAP-5 locomotive (no. 30136) with an enhanced power output of 4,500 kilowatts (6,000 hp) was released which was later adopted as a standard based on successful trials. Some locomotives of this class are equipped with "Head On Generation" (HOG) in which electric power from the locomotive's pantograph is transferred to the coaches instead of "End Of Generation" where a power car equipped with diesel generator is provided at either end of the train rake to supply power.[4][5][6] The first WAP-5 locomotive (no. 30140) with HOG was rolled by CLW in June 2018.

In October 2020, two WAP-5 locomotives (no. 35012 and 35013) were given an asymmetric body design with an aerodynamic profile for one cab and a blunt profile for another cab at the opposite end, which is intended to be semi-permanently coupled with a train in a push-pull configuration for Tejas Express services. The two locomotives have a power output of 6,000 horsepower (4,500 kW) and will have a maximum speed of 160 kilometres per hour (99 mph).[7] Two modified WAP-5 locomotives (35027 and 35028) are used to haul the Amrit Bharat Express in a similar push-pull configuration.[8][9]

Technical specifications

A 24 coach (1430t) passenger rake can be accelerated to 110 km/h in 312.1 seconds (over 6 Km), to 120 km/h in 402sec (6.9km); and to 130km/h in 556 sec (14.2km) by a WAP5.[10][11] Specifications are as follows:[12]

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Performance

WAP-5 (5440 HP) has the following capacity for ICF coaches in tonnes:

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Average weight of an ICF coach is 55 tonnes.

See also

References

  1. [1]
    "'Make in India' speed boost for Indian Railways! Gets first 200 kmph capable aerodynamic electric locomotive". Financial Express. 6 November 2018. Retrieved 1 December 2023.
  2. [2]
    "200 km in 90 mins: Delhi-Agra high speed train sets new speed record". The Economic Times. 3 July 2014. Retrieved 10 July 2014.
  3. [3]
    Loco holding (PDF) (Report). Railnet. Retrieved 1 December 2023.
  4. [4]
    "Train had WAP-7 engine, 'black box' may reveal cause". Indian Express. 9 August 2010. Retrieved 25 August 2012.
  5. [5]
    "Recent Developments". Chittaranjan Locomotive Works. Retrieved 25 August 2012.
  6. [6]
    Development of Electric locomotive with Head On Generation (HOG) facility (PDF) (Report). Indian Railways. Retrieved 1 December 2023.
  7. [7]
    "New Aerodynamic 160 kmph WAP-5 Locomotives Flagged Off At CLW". Railpost.in. 2 October 2020. Retrieved 27 December 2020.
  8. [8]
    Nigam, Saumya (27 December 2023). "Amrit Bharat Express to launch with Push-Pull technology and other exciting features". India TV. Retrieved 28 December 2023.
  9. [9]
    "Vande Sadharan train: All you need to know; How it is different from Vande Bharat train?". Business Today. 30 October 2023. Retrieved 30 December 2023.
  10. [10]
    "Monograph on Bo-Bo Flexi Coil Fabricated Bogie" (PDF). Indian Railways Institute of Civil Engineering. June 2017. Retrieved 20 March 2023.
  11. [11]
    "Simulation of mix-traffic railway networks" (PDF). Indian Railways Institute of Civil Engineering. 2017. Retrieved 20 March 2023.
  12. [12]
    Locomotive specifications (Report). IRFCA. Retrieved 1 December 2023.
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