Delinker at 15:06, 25 July 2023

2023-07-25T15:06:25Z

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{{short description|Indian railway locomotive class}}
{{Use dmy dates|date = May 2020}}
{{Use Indian English|date=May 2020}}
{{Infobox locomotive
| name = WDAP-5
| image = File:WDAP5 71000.jpg
| caption = A dual mode locomotive WDAP-5 awaits for testing at BLW, Varanasi
| powertype = [[Electro-diesel locomotive|Dual-mode]]
| builder = [[Banaras Locomotive Works]]
| serialnumber =
| buildmodel = GT46PAC
| builddate = 2019 - present
| totalproduction = 1
| uicclass = Co-Co
| gauge = {{track gauge|5ft6in|lk=on}}
| fueltype = Diesel
| powersupply = 25kv AC overhead wire
| collectionmethod = Pantograph
| poweroutput = 5500hp (electric), 4500hp (diesel)
| maxspeed = 150.8 km/h (Trials - Electric) <ref>{{cite tweet|number=1369917058041847812|user=PiyushGoyal|title=तेज गति के साथ ही सुरक्षा को महत्व...|date=11 March 2021}}</ref>
| fleetnumbers = '''71000+'''
| lastrundate =
| retiredate =
| withdrawndate =
| preservedunits =
| restoredate =
| scrapdate =
| currentowner =
| disposition = undergoing testing
}}

The Indian locomotive class '''WDAP-5''' is a class of diesel-electric [[Electro-diesel locomotive|dual mode locomotive]] that was developed in 2019 by [[Banaras Locomotive Works]] (BLW), Varanasi for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], Diesel (D), AC Current (A), Passenger (P) and 5000 Horsepower (5). The locomotive can deliver 6120HP in electric mode and 4500HP in diesel mode.

==Need for dual mode locomotive==

Since 2016, [[Indian Railways]] has pushed for greater electrification of the railway network.<ref>{{Cite web|title=Suresh Prabhu launches electrification mission for railways|url=https://www.livemint.com/Politics/49KWrxSRnJSmzB4gl0868I/Suresh-Prabhu-launches-electrification-mission-for-railways.html|last=Lohumi|first=Manasi|date=2016-11-03|website=Livemint|language=en|access-date=2020-05-20}}</ref> In this interest, the government, in 2019, approved plans for 100% electrification.<ref>{{Cite web|title=Govt approves 100% electrification of railways by 2021-22|url=https://www.livemint.com/Companies/jD73mHWleU8hnPlvc0WHeI/Govt-approves-100-electrification-of-railways-by-202122.html|last=Nanda|first=Jyotika Sood,Prashant K.|date=2018-09-12|website=Livemint|language=en|access-date=2020-05-20}}</ref> So far Indian Railways has electrified 39,866 RKMs which accounts for about 63% of the total route kilometres.<ref>{{Cite web|title=CORE website|url=https://core.indianrailways.gov.in/}}</ref> 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.<ref>{{Cite web|title=Diesel locos are back: Zones asked to use diesels for mixed traction routes|url=https://www.railpost.in/diesel-locos-are-back-zones-asked-to-use-diesels-for-mixed-traction-routes/|date=2019-08-03|website=RailPost.in - Indian Railways News & Analysis|language=en-US|access-date=2020-05-20}}</ref> 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 [[Research Design and Standards Organisation|RDSO]] was requested to study the feasibility of dual-mode locomotives as a stop-gap until 100% electrification was achieved.<ref>{{Cite web|title=Railways to manufacture dual-mode locomotives that run on diesel, electricity - Times of India|url=https://timesofindia.indiatimes.com/business/india-business/Railways-to-manufacture-dual-mode-locomotives-that-run-on-diesel-electricity/articleshow/50612226.cms|date=January 17, 2016|website=The Times of India|language=en|access-date=2020-05-20}}</ref>

== Locomotive shed ==
{| class="wikitable"
! Zone of the shed !! Name !! Shed code !! Quantity of locomotives !! Image
|-
| [[South Central Railway]] || [[Kazipet railway station|Kazipet]] || KZJ || 1 ||
|-
| colspan="3" |'''Total Locomotives Active as of October 2021''' || 1
|}

{{Broad gauge locomotives of India |state=collapsed}}

==References==
{{Reflist}}

[[Category:Railway locomotives introduced in 2021]]
[[Category:Electro-diesel locomotives of India]]

{{India-rail-transport-stub}}

Indian locomotive class WDAP-5 - Revision history

Delinker at 15:06, 25 July 2023