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The Indian locomotive class WDAP-5 is a class of diesel-electric dual mode locomotive that was developed in 2019 by Banaras Locomotive Works (BLW), Varanasi for Indian Railways. The model name stands for broad gauge (W), Diesel (D), AC Current (A), Passenger (P) and 5000 Horsepower (5). The locomotive can deliver 5500 hp (4.1 MW) in electric mode and 4500 hp (3.4 MW) in diesel mode.
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 BLW manufactured WDAP-5 | |||||||||||||||
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Need for dual mode locomotive
editSince 2016, Indian Railways has pushed for greater electrification of the railway network.[2] In this interest, the government, in 2019, approved plans for 100% electrification.[3] So far Indian Railways has electrified 52,247 route kilometers (RKM) that is about 80% of the total broad gauge network of Indian Railways (65,414 RKM, including Konkan Railway) by 31 March 2022.[4] Using electric locomotives allows the railways to save time by giving a faster acceleration and also saves fuel costs. However, these advantages are offset under certain circumstances where the route of the train is partly electrified. In such cases, trains used to run with a diesel locomotive in non-electrified sections and would be switched with an electric locomotive as soon as they enter an electrified section. Instead of the benefits of electrification, Railways observed a loss of punctuality in such trains due to valuable time being lost to switch between diesel and electric locomotives. To counter this, in August 2019, Railways issued a circular, asking all zones to haul trains with a diesel locomotive if their route was not completely electrified.[5] This meant that electrification of railway lines, unless completed end-to-end, did not provide any advantage. This problem had been identified by the Railways, way back in 2016, which is when RDSO was requested to study the feasibility of dual-mode locomotives as a stop-gap until 100% electrification was achieved.[6]
However the COVID-19 pandemic has resulted in the stoppage of regular trains.[when?] The time window was used by Indian Railways to electify the railways. As of 1 April 2024, 97% of the network is electrified. The railways aims to electrify the entire network by the end of this year. Hence there is not much use of this locomotive as its purpose is served mainly by electric locomotives. So no WDAP-5s were produced other than 71000. What was done to this locomotive remains unknown.[as of?][citation needed]
Locomotive shed
edit| Zone of the shed | Name | Shed code | Quantity |
|---|---|---|---|
| South Central Railway | Kazipet | KZJ | 1 |
| Total locomotives active as of January 2023 | 1 | ||
References
edit- ^ @PiyushGoyal (11 March 2021). "तेज गति के साथ ही सुरक्षा को महत्व..." (Tweet) (in Hindi) – via Twitter.
- ^ Lohumi, Manasi (3 November 2016). "Suresh Prabhu launches electrification mission for railways". Livemint. Retrieved 20 May 2020.
- ^ Sood, Jyotika; Nanda, Prashant K. (12 September 2018). "Govt approves 100% electrification of railways by 2021-22". Livemint. Retrieved 20 May 2020.
- ^ "CORE website".
- ^ "Diesel locos are back: Zones asked to use diesels for mixed traction routes". RailPost.in - Indian Railways News & Analysis. 3 August 2019. Retrieved 20 May 2020.
- ^ "Railways to manufacture dual-mode locomotives that run on diesel, electricity". The Times of India. 17 January 2016. Retrieved 20 May 2020.
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