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Indian locomotive class WAG-9

2021-07-09T13:42:36Z

2409:4041:2694:9D5A:0:0:353:C0B0:

{{Use Indian English|date=May 2019}}
{{Use dmy dates|date=May 2019}}
{{Infobox locomotive
| name = WAG-9
| image = File:TATA WAG9HC.jpg
| caption = Tatanagar based WAG-9HC at TATA ELS
| powertype = Electric
| designer = [[ABB Group]]
| builder = [[Chittaranjan Locomotive Works]], Electric Locomotive Works ([[Bhusawal]]), [[Bharat Heavy Electricals Limited]],
[[Banaras Locomotive Works]], [[Diesel-Loco Modernisation Works]]
| serialnumber =
| builddate = 1996 - present
| length = {{convert|20.562|m|ftin|abbr=on|frac=8}}
| width = {{convert|3.152|m|ftin|abbr=on|frac=8}}
| height = {{convert|4.525|m|ftin|abbr=on|frac=8}}
| totalproduction = 2346 as of July 2021
| gauge = {{RailGauge|5ft6in|lk=on}}
| bogies = [[Adtranz]] Fabricated [[Flexicoil]] IV
| wheeldiameter = New:{{convert|1092|mm|ftin|abbr=on|frac=8}}, Half worn:{{convert|1054|mm|ftin|abbr=on|frac=8}} Full worn:{{convert|1016|mm|ftin|0|abbr=on}}
| wheelbase = {{convert|15.7|m|ftin|abbr=on}}
| uicclass = Co′Co′
| axleload = WAG-9 : {{convert|20.5|t}}
WAG-9H/Hi/9i : {{convert|22.0|t}}
| locobrakes = [[Railway air brake|Air]] and [[Regenerative brake|Regenerative]]
| trainbrakes = [[Railway air brake|Air]]
| safety = Slip/slide control, Main overload relay, Over voltage relay, No volt protection, Vigilance Control Device, Fire Detection Equipment, Fire Extinguishers and Earth fault relay
| electricsystem = {{25 kV 50 Hz}} [[Overhead line|Overhead]]
| collectionmethod = dual [[pantograph (rail)|pantographs]]
| multipleworking = 2
| poweroutput = WAG-9 Original : {{convert|6122|hp|kW|0|abbr=on}} continuous
WAG-9HH : {{convert|9000|hp|kW|0|abbr=on}} Max
| maxspeed = {{convert|120|km/h|mph|0|abbr=on}}
| locoweight = WAG-9 : {{convert|123|t}}
WAG-9H/9Hi/9i : {{convert|132|t}}
| tractionmotors = WAG-9/9H/9i : [[Adtranz]] 6FRA6068
| tractiveeffort = Starting : {{convert|475|kN|abbr=on}} (WAG-9), {{convert|510|kN|abbr=on}} (WAG-9H/i/Hi) Continuous : {{convert|325|kN|abbr=on}} at 50 km/h
| operator = [[Indian Railways]]
| fleetnumbers = Starting from '''31000-31999''', '''32000-32999''', '''33000+''' and '''90001+''' [[Chittaranjan Locomotive Works|CLW]]
'''34001+''' [[BHEL]]
'''41000+''' [[Banaras Locomotive Works|BLW]]
'''41501+''' [[Diesel-Loco Modernisation Works|DLMW]]
| locale = All Over [[India]]
| disposition = active
| all_models = WAG-9, WAG-9H, WAG-9HC, WAG-9HH, WAG-9I
}}

The Indian locomotive class '''WAG-9''' is a class of 25 [[Volt|kV]] [[Alternating current|AC]] [[Electric locomotive|electric locomotives]] that was developed in 1995 by [[ABB Group]] (ABB) for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], AC Current (A), Goods traffic (G), 9th generation (9) locomotive. They entered service in 1996. A total of 2145 WAG-9 have been built at [[Chittaranjan Locomotive Works]] (CLW), with more units being built at [[Banaras Locomotive Works]] (BLW), [[Bharat Heavy Electricals Limited]] (BHEL) and [[Diesel-Loco Modernisation Works]] (DLMW). It was the most powerful freight locomotive of its fleet until the formal induction of the [[Indian locomotive class WAG-12|WAG-12]].

The WAG-9 is one of the most successful locomotives of Indian Railways serving freight trains for over 25 years. A passenger variant of the WAG-9 was developed namely the [[Indian locomotive class WAP-7|WAP-7]] locomotive by modifying the [[gear ratio]] to pull lighter loads at higher speeds.

== Introduction ==

The WAG-9 [[locomotive]] is referred to as the "Heavy Haul" freight locomotive of the Indian Railways (IR). It was conceived in response to the extreme growth in the rail freight transportation sector, which is considered to be of great importance to the growth of the [[economy of India]]. The need for more [[electrification]] and electric locomotives in India had increased. Around 60-65% of the freight haulage of the IR takes place on the electrified section of the Golden Quadrilateral (Indian Railways) and diagonals (which account for 25% of the route). These are very busy routes, so clearance is a necessity. Electrical powers give it a great sectional clearance ability. Thus, these locomotives are important for the Indian Railways.

These locomotives have entered the [[Western Railway zone]] of [[Mumbai]]. The first 22 units were imported from [[ABB Group|ABB]]. Of these, the first six were fully assembled and rest were in kit form. CLW started producing of WAG-9 traction motors on 1 November 1999. The units built by ABB have [[Pantograph (transport)|pantographs]] with two end horns while the CLW built units have pantographs with single end horns which are common in India. This class had a capacity to MU several units, but IR restricts them to two, because of dynamic loading restriction on most bridges. Regenerative brakes provide about 260 kN of braking effort.

The WAG-9H also has different application software than the WAG-9. The first WAG-9H was commissioned on 30 June 2000. The #30130 prototype was housed at [[Netaji Subhas Chandra Bose Gomoh railway station|Gomoh]] (GMO). This was then converted back to standard WAG-9 in 2002. This unit has a livery of twin white stripes on green, instead of yellow stripe on green, seen on the other WAG-9(x)s.

The WAG-9i was introduced in 2010, and was #31215. It was homed at the GMO shed. With IGBT, even if one traction motor failed, other traction motors can function with a total output of 5500 hp.

Newer WAG-9 units have "CLW Glorious 60 years" marked on their sides. Some WAG-9(x)s are fitted with a solid cowcatcher while others are fitted with grilled cowcatchers. Some have American style flasher lamps while others have Indian style flasher lamps. http://elocos.railnet.gov.in/Study_Material/TSD_3Ph.pdf.

Newer versions of the WAG-9 feature full [[Insulated-gate bipolar transistor]] (IGBT) traction control; the debut model was the ''WAG-9 31248''. The class as a whole is denoted by the WAG-9i prefix in its model number, although there is a technical variant of this class named WAG-9H, with the "H" meaning "Heavy".

The WAG-9H/9Hi locomotives are the second heaviest in regular service in India (after the [[Indian locomotive class WAG-12|WAG-12]]), the only freight-dedicated three-phase AC locomotives in the country, and the only electric locomotives in India fitted with IGBT. They are also the freight locomotives with the highest operational speed in India.

It is similar to the [[Indian locomotive class WAP-7|WAP-7]] class locomotive but features a different [[gear ratio]], which makes it suitable for heavy freight operations. In November 1998, the [[Chittaranjan Locomotive Works]] (CLW) started producing these with indigenous components. The first of which, named Navyug (New Era), was produced on 14 November 1998. Like the [[Indian Locomotive Class WAP-5|WAP-5 units]], the WAG-9 has GTO [[thyristor]] converters and three-phase asynchronous motors.

== Operations ==
WAG-9 has quickly become one of the important locos in the Indian railways. With its higher power, this locomotive has replaced WAG-7 which was the main electric loco before WAG-9's arrival. Applications where twin WAG-7s were required are now handled by a single WAG-9. This includes both leading a long consist and for banking operations. The regenerative braking capabilities of WAG-9 has also helped reduce the electricity consumption. The original WAG-9 had some wheel slippage incidents while hauling heavy load. This was rectified through the introduction of WAG-9H and subsequently using WAG-9i. This has significantly reduced the issue that were associated with the original version.

 Chittaranjan Locomotive Works (CLW) turned out its first 9,000 hp WAG-9 freight locomotive on 31 March 2019, the last day of the financial year. This 9,000 hp version of the WAG-9H has been classified by IR as WAG-9 HH. The first H stands for higher axle load and the second H stands for the higher power rating. The class has been allocated a block of serial numbers starting with 90001, the number of the first unit. The decision to upgrade the power output of the WAG-9 was taken to partly meet the demands of the upcoming electrified Western Dedicated Freight Corridor (WDFC). The upgraded locomotive class will also augment hauling capacity on the existing network of the Indian Railways.<ref>{{Cite web|url=https://www.railpost.in/new-9000-hp-wag-9-hh-locomotive-rolls-out-of-clw/|title=New 9,000 hp WAG-9 HH Locomotive Rolls Out of CLW|date=2019-04-02|website=RailPost.in - Indian Railways News & Analysis|access-date=2019-04-05}}</ref>

== Locomotive sheds ==
{| class="wikitable"
|+
! rowspan="2" style="background:#87CEEB;" |Zone
! rowspan="2" style="background:#87CEEB;" |Name
! rowspan="2" style="background:#87CEEB;" |Shade Code
! colspan="2" style="background:#87CEEB;" |Quantity
! rowspan="2" style="background:#87CEEB;" |Introduction
|-
!style="background:#87CEEB;" |WAG9
!style="background:#87CEEB;" |WAG9H
|-
| rowspan="3" |[[Central Railway zone|Central Railway]]
|[[Electric Loco Shed, Bhusawal|Bhusaval]]
|BSL
|
|32
|10 October 2013
|-
|[[Electric Loco Shed, Ajni|Ajni]]
|AQ
|40
|127
|14 January 2000
|-
|[[Electric Loco Shed, Kalyan|Kalyan]]
|KYN
|2
|21
|23 January 2013
|-
| rowspan="2" |[[Eastern Railway zone|Eastern Railway]] || [[Bardhaman railway station|Bardhaman]] || BWN(D)
|| || 30 || 1 March 2020
|-
| [[Electric Loco Shed, Asansol|Asansol]]
|ASN
|
|17
|1 November 2020
|-
| rowspan="4" |[[East Central Railway zone|East Central Railway]]
|[[Mughalsarai Junction railway station|Pt. DD Upadhyaya Junction]]
|DDU
|
|21
|1 July 2020
|-
|[[Electric Loco Shed, Gomoh|Gomoh]]
|GMO
|71
|95
|9 March 1997
|-
|[[Barauni Junction|Barauni]]
|BJU
|
|52
|20 June 2012
|-
|[[Patratu railway station|Patratu]]
|PTRU(D)
|6
|111
|1 September 2020
|-
|-
|rowspan="2" |[[East Coast Railway zone|East Coast Railway]]
|[[Electric Loco Shed, Visakhapatnam|Visakhapatnam]]
|VSKP
|
|181
|22 July 2014
|-
|[[Visakhapatnam railway station|Visakhapatnam]]
|VSKP(D)
|
|40
|17 April 2021
|-
| rowspan="2" |[[Northern Railway zone|Northern Railway]]
|[[Electric Loco Shed, Ludhiana|Ludhiana]]
|LDH
|
|154
|21 December 2015
|-
|[[Saharanpur railway station|Khanalampura]]
|KJGY
|
|28
|1 September 2019
|-
|[[North Central Railway zone|North Central Railway]]
|[[Electric Loco Shed, Kanpur|Kanpur]]
|CNB
|
|137
|27 January 2016
|-
| rowspan="2" |[[Southern Railway zone|Southern Railway]]
|[[Electric Loco Shed, Arakkonam|Arakkonam]]
|AJJ
|
|15
|9 November 2020
|-
|[[Electric Loco Shed, Erode|Erode]]
|ED
|
|5
|1 August 2020
|-
| rowspan="4" |[[South Central Railway zone|South Central Railway]]
|[[Electric Loco Shed, Vijayawada|Vijayawada]]
|BZA
|
|12
|27 June 2021
|-
|[[Electric Loco Shed, Lallaguda|Lallaguda]]
|LGD
|73
|57
|1 May 2007
|-
|[[Electric Loco Shed, Kazipet|Kazipet]]
|KZJ
|
|88
|29 August 2013
|-
|[[Diesel Loco Shed, Gooty|Gooty]]
|GY(D)
|
|30
|31 August 2019
|-
| rowspan="4" |[[South Eastern Railway zone|South Eastern Railway]]
|[[Electric Loco Shed, Tatanagar|Tatanagar]]
|TATA
|2
|172
|21 March 2010
|-
|[[Bondamunda railway station|Bondamunda]]
|BNDM
|
|86
|20 August 2016
|-
|[[Electric Loco Shed, Bokaro Steel City|Bokaro Steel City]]
|BKSC
|
|84
|31 March 2019
|-
|[[Rourkela Junction railway station|Rourkela]]
|ROU
|
|121
|31 January 2019
|-
| rowspan="2"|[[South East Central Railway zone|South East Central Railway]]
|[[Electric Loco Shed, Bhilai|Bhilai]]
|BIA
|
|130
|14 January 2009
|-
|[[Bilaspur Junction railway station|Bilaspur]]
|BSP
|
|60
|1 September 2020
|-
|-
|[[South Western Railway zone|South Western Railway]]
|[[Diesel Loco Shed, Krishnarajapuram|Krishnarajapuram]]
|KJM(D)
|
|19
|14 May 2020
|-
| [[Western Railway zone|Western Railway]] || [[Electric Loco Shed, Valsad|Valsad]] || BL || ||10 ||1 July 2020
|-
| rowspan="3" |[[West Central Railway zone|West Central Railway]]
|[[Electric Loco Shed, Tuglakabad|Tughlakabad]]
|TKD
|30
|99
|1 September 2008
|-
|[[New Katni Junction railway station|New Katni Jn.]]
|NKJ
|
|8
|26 September 2017
|-
|[[Electric Loco Shed, Itarsi|Itarsi]]
|ET
|
|80
|1 November 2020
|-
| colspan="3" |Total
|224
|2122
| rowspan="2" |
|-
| colspan="3" |'''Total Locomotives Active as of 01-07-2021'''<ref>{{Cite web|title=e-Locos|url=http://elocos.railnet.gov.in/Holding/holding.html}}</ref>
| colspan="2" |2346
|}

== Performance ==
Two WAG-9 class units can haul a load of {{convert|4500|t}} on [[Grade (slope)|grades]] of 1 in 60 (1.67%). The WAG-9H was expected to haul 58 BOXN wagons, i.e.,{{convert|4700|t}}, without multiple units on grades of 1 in 150 (0.67%). The locomotive can run even in 100% humidity, or in deserts, where there is high saturation of conductive particles. For shunting up to {{convert|15|km/h|abbr=on}}, it can haul {{convert|7500|t}} on grades of 1 in 1000 (0.1%) or less. The atmosphere may be humid and salty. Regenerative braking will provide braking force of no less than {{convert|260|kN|abbr=on}} at {{convert|10|-|62|km/h|abbr=on}} and closer to {{convert|260|kN|abbr=on}} at higher speeds. Below is the capacity of the WAG-9 while hauling BOX wagons (in tonnes}):<ref name=Trainweb>{{cite web|title=Trainweb|url=http://trainweb.org/railworld/Electric_Locos/wag9.htm}}</ref>

{| class="wikitable"
|-
! Grade\km/h !! Start !! 20 !! 30 !! 40 !! 50 !! 60 !! 70 !! 80 !! 90 !! 100
|-
| '''Level''' || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+
|-
| '''1 in 500''' || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 6000+ || 4985 || 4150 || 3500
|-
| '''1 in 200''' || 5060 || 5060 || 5060 || 5060 || 5060 || 4045 || 3325 || 2780 || 2365 || 2040
|-
| '''1 in 150''' || 4250 || 4250 || 4165 || 4080 || 3985 || 3200 || 2640 || 2220 || 1895 || 1640
|-
| '''1 in 100''' || 3205 || 2910 || 2870 || 2825 || 2775 || 2240 || 1855 || 1565 || 1345 || 1165
|-
| '''1 in 50''' || 1820 || 1455 || 1445 || 1435 || 1420 || 1440 || 945 || 795 || 680 || 590
|}

== See also ==
*[[Indian Railways]]
*[[Locomotives of India]]
*[[Rail transport in India]]

== References ==
<references/>

== External links ==
{{commons category|Indian locomotive class WAG9}}
*[http://www.irfca.org/faq/faq-specs.html#WAG-9 Specifications]
*[http://www.irfca.org India railway fan club]
*[http://trainspo.com/class/380/ IR WAG-9 @ Trainspo]
*[http://icfbogie.com/wp/electric-locomotives/electric-locomotive-numbers-of-indian-railways-loco-holding IT Locomotive Numbers]

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

[[Category:5 ft 6 in gauge locomotives]]
[[Category:25 kV AC locomotives]]
[[Category:Co-Co locomotives]]
[[Category:Electric locomotives of India]]
[[Category:Railway locomotives introduced in 1996]]
<gallery>
[[File:WAG-9H ERODE.jpg|thumb]]
|Caption1
|Caption2
</gallery>

Indian locomotive class WAP-5

2021-07-09T13:32:49Z

2409:4041:2694:9D5A:0:0:353:C0B0: /* Locomotive sheds */

{{Use dmy dates|date=May 2019}}
{{Use Indian English|date=May 2019}}
{{Infobox locomotive
| name = '''WAP-5'''
| powertype = Electric
| image = File:BRC HOG WAP5.jpg
| alt =
| caption = Vadodara based WAP-5 (no. 30186) with HOG equipped rest at Valsad
| builder = [[Chittaranjan Locomotive Works|CLW]], ([[India]]) [[Adtranz|ABB]], ([[Switzerland]])
| buildmodel = [[SBB-CFF-FFS Re 460|Lok 2000]]
| builddate = 1995–present
| totalproduction = 219 as of July 2021
| uicclass = Bo'Bo'
| gauge = {{RailGauge|5ft6in|lk=on}}
| bogies = [[Henschel & Son|Henschel]] Flexifloat
| wheeldiameter = New: {{convert|1092|mm|ftin|0|abbr=on}} Half-worn: {{convert|1054|mm|ftin|abbr=on|frac=2}} Full-worn: {{convert|1016|mm|ftin|0|abbr=on}}
| wheelbase = {{convert|13000|mm|ftin|abbr=on}}
| length = {{convert|18162|mm|ftin|0|abbr=on}}
| width = {{convert|3142|mm|ftin|abbr=on|frac=4}}
| height = {{convert|4237|mm|ftin|0|abbr=on}}
| axleload = {{convert|19.5|t}}
| locoweight = {{convert|78|t}}
| electricsystem = {{25 kV 50 Hz|25 kV 50 Hz AC}} [[Overhead line|Overhead]]
| collectionmethod = [[pantograph (rail)|pantograph]]
| gear ratio = 67:35:17 (160 km/h) 59:35:19 (200 km/h)
| tractionmotors = 4 [[ABB Group]] 6FXA 7059
| multipleworking = 2
| maxspeed = Operational : {{convert|160|km/h|mph|0|abbr=on}} Trials: {{convert|184|km/h|mph|0|abbr=on}} Potential: {{convert|225|km/h|mph|0|abbr=on}}<ref>http://irfca.org/apps/locos/list?page=3&shed_id=25</ref> Modified Gear Ratio:{{convert|200|km/h|mph|0|abbr=on}}
|poweroutput ='''WAP-5''' Continuous : {{convert|5440|hp|kW|0|abbr=on}}
 
'''WAP-5H (Upgraded)''' Continuous : ~{{convert|6120|hp|kW|0|abbr=on}}
| tractiveeffort = Starting : {{convert|258|kN|abbr=on}}
| locobrakes = [[Railway air brake|Air]] and [[Regenerative brake|Regenerative]]
| trainbrakes = Air
| safety = TPWS (Train Protection and Warning System), Vigilance Control, Slip/Slide Control, Main Overload Relay, No Volt Relay, Over Voltage Protection and Earth Fault Relay
| operator = [[Indian Railways]]
| fleetnumbers = '''30000-30200''' & '''35001+'''
| nicknames = '''Vijay Utkarsh, Nav Jagran, Nav Kirti, Gaurav and Navodit'''
| deliverydate = 1995-96
| firstrundate = 1997
| disposition = Active
}}

The '''Indian locomotive class WAP-5''' is the name of a class of "High Speed" [[electric locomotives]] produced and used by [[Indian Railways]]. The first 10 locomotives were imported from [[Adtranz|ABB]] in [[Switzerland]] in 1995. They are supposed to be a variant of the Swiss [[SBB-CFF-FFS Re 460|Lok 2000]] (Design concept) and German [[DB Class 120]] (mechanical chassis).

One of the notable features of WAP-5 is [[Regenerative brake|regenerative braking]]. Other notable features of this loco are the provision of taps from the main loco transformer for [[hotel load]], pantry loads, flexible gear coupling, wheel-mounted [[disc brakes]], and a potential for speed enhancement to {{convert|200|km/h|abbr=on}}. Braking systems include {{convert|160|kN|lbf|abbr=on}} regenerative brakes, loco disc brakes, automatic train air brakes, and a charged spring [[Parking brake#Railroad hand brakes|parking brake]].

On 3 July 2014, a WAP-5 set an Indian speed record by hauling a train from Delhi to Agra within 90 minutes at a speed of {{convert|160|km/h|abbr=on}}.<ref>{{cite news |title=200 km in 90 mins: Delhi-Agra high speed train sets new speed record |url=http://articles.economictimes.indiatimes.com/2014-07-03/news/51057656_1_speed-record-fastest-train-passenger-train |access-date=10 July 2014 |publisher=[[The Economic Times]] |date=3 July 2014}}</ref>

The [[Gatimaan Express]] and [[Bhopal Shatabdi]] trains hauled by WAP-5 locomotives travel at {{convert|160|km/h|abbr=on}} and {{convert|150|km/h|abbr=on}} respectively in the [[New Delhi]] - [[Agra Cantt]] section.

==Locomotive sheds==
{| class="wikitable sortable"
|-
! Zone !! Shed Code !! Name
!Quantity!! Introduction !! Out of Service
|-
|[[Eastern Railway zone|Eastern Railway]] || HWH ||[[Electric Loco Shed, Howrah|Howrah]]
|31|| 2019 ||
|-
|[[Northern Railway zone|Northern Railway]] || GZB ||[[Electric Loco Shed, Ghaziabad|Ghaziabad]]
|122|| 1997 ||
|-
|[[Western Railway zone|Western Railway]] || BRC ||[[Electric Loco Shed, Vadodara|Vadodara]]
|66|| 2011 ||
|-
|colspan="3" |'''Total Locomotives Active as of 01-07-2021'''<ref>{{Cite web|title=e-Locos|url=http://elocos.railnet.gov.in/Holding/holding.html}}</ref>||'''219''' || || ||
|}

== Named Locos ==
* WAP-5 30011 '''Navodit''' (GZB)
* WAP-5 30012 '''Navjagran''' (GZB)
* WAP-5 30013 '''Navkirti''' (GZB)
* WAP-5 30015 '''Vijay Utkarsh''' (GZB)
* WAP-5 30044 '''Gaurav''' (BRC)

== 200 km/h Variant ==
In October 2015, [[Chittaranjan Locomotive Works]] rolled out a WAP-5 locomotive (no. 30086) with a gear ratio of 59:35:19 for speed operations up to {{convert|200|km/h|abbr=on}}. The control software was also modified accordingly. Another locomotive (no. 30164) was rolled out with aerodynamic cab profile.This is just a trial and not intended for passenger use as the tracks are not supported in major routes.

==Head-On Generation (HOG)==
A WAP-5 locomotive (no. 30140) with Head-on Generation (HOG) was rolled by CLW in June 2018. In this locomotive, the hotel load converter has been accommodated in the same cubicle of traction converter. More locomotives of this type will be rolled out in future.

==Power upgrade to 6000 HP==
In March 2018, CLW rolled out a WAP-5 locomotive (no. 30136) with an enhanced power output of about {{Convert|4500|kW|hp}}. Modifications were carried out in the control software. Based on successful trials, the Indian Railways decided to proliferate the modification on all WAP-5 locomotives.

==Tejas Express push-pull version==
Two WAP-5 locomotives (no. 35012 and 35013) were given a single-cab design and an aerodynamic profile. One locomotive will be placed on each end of the train to utilize a [[push–pull train|push-pull configuration]] for future [[Tejas Express]] services. The two locomotives have a power output of {{Convert|6000|hp|kW}} and will have a maximum speed of {{Convert|160|km/h|mph}}. These locomotives were inaugurated on October 2020.<ref>{{Cite web|title=New Aerodynamic 160 kmph WAP-5 Locomotives Flagged Off At CLW |url=https://www.railpost.in/new-aerodynamic-160-kmph-wap-5-locomotives-flagged-off-at-clw/ |website=www.railpost.in |date=2 October 2020 |access-date=27 December 2020}}</ref>

==Liveries ==
* The most common livery for WAP-5 locomotives is white, black and a twin red band.
* In 2014, Amul Milk made a contract with [[Electric Loco Shed, Vadodara|Vadodara Shed]] to apply [[wrap advertising]] on 20 Vadodara-based WAP-5 locomotives.
* WAP-5 locomotives based at [[Electric Loco Shed, Ghaziabad]] have large P-5 decals on the sides.
* Another [[wrap advertising]] for Fortune Edible Oils was released by Vadodara (BRC) Electric Loco Shed with locomotive no. 30081.
* The Tejas WAP-5 with the same livery as the [[Tejas Express]].

==Gallery==
<gallery>
File:HWH WAP5 35010.jpg|thumb|Howrah based HOG equipped WAP-5 (35010)
File:BRC FORTUNE WAP5.jpg|thumb|BRC based WAP-5 in Fortune Edible Oils advertisement
File:Aerodynamic WAP5.jpg|thumb|GZB based Aerodynamic WAP-5 (30164)
File:WAP5 Navjagran.jpg|thumb|GZB based WAP-5 (30012) named "Navjagran"
File:HWH HOG WAP-5.jpg|thumb|HOG-equipped WAP-5 (35009) from HWH ELS
File:Amul WAP-5.jpg|Vadodara based Amul advertised WAP-5 locomotive.
File:Sapt_Kranti_Express,_Locomotive_change_from_WDP_4D_to_Ghaziabad_WAP_5.jpg|thumb|GZB WAP 5 with Sampark Kranti Express
File:GZB HOG WAP5 30165 (cropped).jpg|'''HOG''' equipped WAP-5 (30165) from GZB ELS
File:Ghaziabad WAP 5.jpg|[[Ghaziabad railway station|Ghaziabad]] based [[WAP 5]] getting ready to haul the Garib Rath Express
File:Amul WAP 5.jpg|BRC based Amul advertised WAP-5 locomotive
File:BHOPAL SHATABDI arriving HABIBGANJ with GZB WAP-5.jpg|Habibganj - New Delhi Shatabdi Express arriving Habibganj with GZB WAP-5
File:WAP-5 at Bhopal.jpg|GZB WAP-5 resting at Pitline
File:Bhopal_Shahtbdi.jpg|A WAP-5 hauling the Bhopal Shatabdi Express
File:BRC WAP5 TWINS.jpg| A BRC based WAP-5 twins towards BRC ELS
File:Howrah WAP5.jpg|HWH based WAP-5 at Howrah Jn.
</gallery>

==Technical Specifications==
Specifications are as follows:<ref>{{cite web| url=http://www.irfca.org/faq/faq-loco2e.html#loco| title=Indian railway fan club }}</ref>

{| class="wikitable" border="1"
|+Technical Specifications
! colspan=2 | '''General Information'''
|-
|Gauge
|Broad gauge {{convert|1676|mm|ftin|abbr=on|frac=8}}
|-
|Line voltage
|25000 V
|-
|Type of current
|Alternating Current (AC)
|-
|Axle load
|{{convert|19.5|t}}
|-
|UIC classification
|[[Bo-Bo]]
|-
|Length over head-stocks
|{{convert|16880|mm|ftin|abbr=on|frac=8}}
|-
|Length over buffers
|{{convert|18162|mm|ftin|abbr=on|frac=8}}
|-
|Bogie wheel base
|{{convert|2800|mm|ftin|abbr=on|frac=8}}
|-
|Wheel base
|{{convert|13000|mm|ftin|abbr=on|frac=8}}
|-
|Body width
|{{convert|3142|mm|ftin|abbr=on|frac=8}}
|-
|Cab length
|{{convert|2434|mm|ftin|abbr=on|frac=8}}
|-
|Pantograph locked down height
|{{convert|4237|mm|ftin|abbr=on|frac=8}}
|-
| Bogie center distance
| {{convert|10200|mm|ftin|abbr=on|frac=8}}
|-
| Height over pantograph
| {{convert|4237|mm|ftin|abbr=on|frac=8}}
|-
| Body width
| {{convert|3142|mm|ftin|abbr=on|frac=8}}
|-
| Coupling
| [[Janney coupler|Central Buffer Couplers]] (CBC)
|-
| Surface
| corrugated or plain
|-
! colspan=2|'''Traction motors'''
|-
|Type
|6FXA 7059 3-phase asynchronous motors, {{convert|1563|hp|kW|abbr=on|order=flip}}, 2180 V, 370 A continuous, 396 A for 1 hr, 540 A max, 1585 rpm continuous, 3174 rpm max, Weight 1990 kg. Forced-air ventilation, partly suspended. Torque 6930/10000 N-m. 96% efficiency.
|-
|Make
|ABB
|-
|Traction motors insulation
|Class 200
|-
|Traction Motor's Short Time Overload Rating
|1150 kW, 1540 V, 540 A, 1107 rpm
|-
|Traction Motor's 1 hour rating
|1150 kW, 2044 V, 396 A, 1485 rpm
|-
|Traction Motor's Continuous Rating
|1150 kW, 2180 V, 370 A, 1585 rpm
|-
|Number of Traction Motors
|4
|-
|Gear Ratio
|67:35:17 ({{convert|160|km/h|abbr=on|disp=or}}) 59:35:19 ({{convert|200|km/h|abbr=on|disp=or}})
|-
! colspan=2 | '''Transformer'''
|-
|Type
|ABB LOT-7500/LOT-7775: {7475 kVA/7775 kVA, 25 kV, 299A-primary/311A}-primary, {4x1269 V, 4x1450 kVA, 4x1142 A}-secondary, {1000 V, 334 kVA, 334 A}-Auxiliary, {960 V, 2x622.5 kVA, 2x648 A}- Hotel Load and {1154 V, 400 kVA, 347 A}-Filter
|-
|Transformer Insulation
|Class A
|-
|Make
|ABB, HI VOLT, BHEL
|-
|Weight
|10000 +/-3% kg
|-
! colspan=2 | '''Power Converter'''
|-
|Number of converters
|2
|-
|Semiconductors
|'''GTO''' thyristors / '''IGBT'''
|-
|GTO
|
Type : UW-2423-2810 
SG 3000G X H24 GTO thyristors (D 921S45 T diodes), 14 thyristors per unit (two units). Line converter rated at 2 x 1269 V @ 50 Hz, with DC link voltage of 2800 V. Drive converter rated at 2180 V phase to phase, 953 A output current *per phase, motor frequency from 0 to 160.3 Hz.
|-
|IGBT
|IGBT type 5SNA 1200G450300 
2105 kW, individual axle control configuration, MITRAC software, water cooled.
Newer locomotives have IGBT based propulsion system.
|-
! colspan=2 | '''Hotel Load Converter'''**
|-
|Make
|Siemens / Medha / ABB
|-
|Rating
|2x500 kVA
|-
|Voltage
|750 V +/- 5%, 3 phase
|-
! colspan=2 | '''Bogie'''
|-
|Type
|'''Bo-Bo''' [[Henschel]] Flexifloat bogies with [[quill drive]].
Bogie center distance {{convert|10200|mm|ft|abbr=on}}; bogie wheelbase {{convert|2800|mm|ft|abbr=on}}
* Unsprung mass per axle: 2.691 t
* This Locomotive has a Fully Suspended Drive.
|-
| Drive Arrangement
| Gear coupling and 3-stage gears
|-
| Design
| 2-axle fabricated
|-
| Primary suspension || coil
|-
| Secondary suspension || coil
|-
! colspan=2 | '''Pantograph'''
|-
|Type
|Two Stone India ([[Calcutta]]) AM-92, Two WBL-85, Two [[Schunk]] for the imported locomotives.
|-
|Pantograph Weight
|231 kg
|-
! colspan=2 | '''Other information'''
|-
|2 FLAKT ABB Traction Motor Blowers
|3.6 cubic meter per sec
|-
|Landert Traction Motor Blower Motor
|3 phase, 415 V, 50 Hz, 2930 rpm, 25 kW
|-
|200L55-RFXH2A-01 Traction Motor Blower Motor Insulation
|Class F
|-
|2 Oil Cooler Blowers
|8.8 cubic meter per sec
|-
|Landert Oil Cooler Blower Motor
|3 phase, 415 V, 50 Hz,2930 rpm, 25 kW
|-
|200L55-RH2A Oil Cooler Blower Motor Insulation
|Class F
|-
|2 Howden Safanco Scavenge Blowers for Traction Motors and Oil Cooler Blower
|0.664 cubic meter per sec
|-
|Landert Scavenge Blower Motor for Traction Motors and Oil Cooler
|3 phase, 415 V, 50 Hz, 2850 rpm, 3 kW
|-
|100L28-R2C Scavenge Motor Blower Motor Insulation
|Class H
|-
|2 Transformer Oil Pumps by Plumeliaz
|1000 liters per minute
|-
|Landert Transformer Oil Pump Motor
|3-phase, 415 V, 50 Hz, 2850 rpm, 4.7 kW
|-
|112M-2B type Transformer Oil Pump Motor Insulation
|Class F
|-
|2 Converter Oil Pumps by Plumeliaz
|960 liters per minute
|-
|Converter Oil Pump Motor by Landert
|3-phase, 415 V, 50 Hz, 2860 rpm, 11 kW
|-
|112M-2F type Converter Oil Pump Motor Insulation
|Class F
|-
|2 Main Compressors by D&M
|1 kg/cm2
|-
|Main Compressor Motor by Landert
|3-phase, 415 V, 50 Hz, 730 rpm, 15 kW
|-
|200155-RPAH8B Main Compressor Motor Insulation
|Class H
|-
|2 Machine Room Blower by Flakt and ABB
|1 cubic meter per sec.
|-
|Machine Room Blower Motor by Landert
|1-phase, 415 V, 50 Hz, 2830 rpm, 2.6 kW
|-
|132M-RFXHE2C type Machine Room Blower Motor Insulation
|Class F
|-
|Scavenge Blower for Machine Room Blower by Howden Safanco
|0.1 cubic meter per sec.
|-
|Scavenge Blower Motor for Machine Room Blower by Landert
|1-phase, 415 V, 50 Hz, 2910 rpm, 0.75 kW
|-
|9DL24-RE2C type Scavenge Blower Motor for Machine Room Blower Insulation
|Class F
|-
|Auxiliary Compressor by D&M and Bristol
|141.6 ft per min., 7.03 kg per cm2.
|-
|Auxiliary Compressor Motor by D&M
|110 VDC, 1450 rpm, 75 kW
|-
|Battery by Saft Nife
|110 V, 199 AH, NiCd (SAF-39 SBL199)
|}
'''**''' Hotel load converter to be introduced soon.

==Performance ==

WAP-5 (5440 HP) has the following capacity for ICF coaches in tonnes:
{| class="wikitable"
|-
! Gradient !! Start !! 20 km/h !! 30 km/h !! 40 km/h !! 50 km/h !! 60 km/h !! 70 km/h !! 80 km/h !! 90 km/h !! 100 km/h !! 110 km/h !! 120 km/h !! 130 km/h !! 140 km/h !! 150 km/h !! 160 km/h
|-
| '''Level''' || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1470 || 1230
|-
| '''1 in 500''' || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1470 || 1250 || 1065 || 910
|-
| '''1 in 200''' || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1350 || 1160 || 995 || 860 || 745 || 645
|-
| '''1 in 150''' || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1310 || 1125 || 970 || 840 || 730 || 635 || 550
|-
| '''1 in 100''' || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1500+ || 1460 || 1325 || 1125 || 970 || 840 || 730 || 635 || 555 || 480 || 420
|-
| '''1 in 50''' || 1010 || 980 || 965 || 955 || 940 || 865 || 780 || 710 || 610 || 525 || 455 || 400 || 345 || 305 || 265 || 230
|}
Average weight of an ICF coach is 55 tonnes.

==See also==

*[[Indian Railways]]
*[[Locomotives of India]]
*[[Rail transport in India]]

==References==
<references />

==External links==
{{commons category|Indian locomotive class WAP5}}
*[https://web.archive.org/web/20160309170924/http://www.clw.indianrailways.gov.in/view_section.jsp?lang=0&id=0,296,306]
*[http://www.irfca.org India railway fan club]

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

[[Category:Electric locomotives of India]]
[[Category:25 kV AC locomotives]]
[[Category:Bo-Bo locomotives]]
[[Category:Railway locomotives introduced in 1995]]
[[Category:5 ft 6 in gauge locomotives]]

Indian locomotive class WAG-12

2021-07-09T13:31:06Z

2409:4041:2694:9D5A:0:0:353:C0B0: /* Locomotive shed */

{{short description|Electric locomotive developed by Alstom for the Indian Railways}}
{{Use dmy dates|date=September 2020}}
{{Infobox locomotive
| name = WAG-12B<ref name="WAG12 name & delivery">{{cite web|url=https://www.timesofindia.com/city/lucknow/rdso-develops-worlds-most-powerful-loco/amp_articleshow/75481493.cms}}</ref>
| image = File:SRE WAG12B 60094.jpg
| caption = Saharanpur based WAG-12B with freight
| powertype = Electric
| buildmodel = [[Prima (locomotive)|Alstom Prima]]<ref name="WAG12B order">{{cite web|title=Alstom to supply 800 electric locos to Indian Railways|url=http://www.railwaygazette.com/news/traction-rolling-stock/single-view/view/alstom-to-supply-800-electric-locos-to-indian-railways.html|publisher=[[Railway Gazette International]]|access-date=2 January 2018}}</ref>
| gauge = {{Track gauge|66in|lk=on}} Broad Gauge
| aarwheels = B-B+B-B
|uicclass = [[Bo′Bo′+Bo′Bo′]]
| Britishclass = Bo-Bo+Bo-Bo<ref name="prima t8 specs">{{cite web|title=Alstom Prima T8 Heavy Freight Locomotives Specifications|url=http://www.alstom.com/Global/Transport/Resources/Documents/brochure2014/Prima%20Heavy%20freight%20-%20Product%20sheet%20-%20English.pdf?epslanguage=en-GB|publisher=Alstom|access-date=5 January 2018}}</ref>
| designer = [[Alstom]]
| builder = [[Electric Locomotive Factory, Madhepura|ELF Madhepura]]
| operator = [[Indian Railways]]
| fleetnumbers = '''60001+''' onwards<ref name="test date and fleet number" />
| totalproduction = 800 to be produced Currently - 118
| electricsystem = {{25 kV 50 Hz}}
| collectionmethod = [[pantograph (rail)|Pantograph]] [[Overhead line|OHE]]
| nicknames =
| locale = All over India
| builddate = {{start date|2017|10|11|df=y}}<ref name="WAG 12B prod begin">{{cite web|title=Production starts at Indian electric locomotive factory|url=http://www.railwaygazette.com/news/business/single-view/view/production-starts-at-indian-electric-locomotive-factory.html?sword_list[]=WAG&sword_list[]=12&no_cache=1|publisher=Railway Gazette International|access-date=2 January 2018}}</ref> - present
| firstrundate =
| maxspeed = 120 km/h (75 mph)<ref name="WAG12B order" />
| locoweight = WAG-12B : 180 tonnes (177 long tons; 198 short tons)
| poweroutput cont = 9 MW (12,000 hp)
| t/e starting = 785 kN (176,000 lbf)
| wheeldiameter = 1250 mm
| locobrakes = [[regenerative brake|Regenerative]]<ref name="regen brake" />
}}

The Indian locomotive class '''WAG-12B''' is a class of 25 [[Volt|kV]] [[Alternating current|AC]] [[electric locomotive]]s that was developed in 2017 by [[Alstom]] for the [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], Alternating Current (AC), Goods traffic (G) locomotive , 12th generation (12). They entered trial service in 2019. A total of 800 WAG-12B are to be built at [[Electric Locomotive Factory, Madhepura]], [[Bihar]], [[India]].<ref>{{Cite web|date=20 May 2020|title=WAG-12: Official Press Releases from Alstom and Indian Railways|url=https://www.railpost.in/wag-12-official-press-releases-from-alstom-and-indian-railways/|access-date=15 June 2020|website=RailPost.in - Indian Railways News & Analysis|language=en-US}}</ref>

With a power output of 12,000 HP, they are twice as powerful as their immediate predecessor, [[WAG 9|WAG-9]], and it is one of the most powerful freight locomotive in the world. The WAG 12 locomotive is being developed for deployment on the [[Dedicated Freight Corridor Corporation of India|Dedicated Freight Corridors]], where it will be used to haul freight trains weighing more than {{convert|6000|tonnes}} at speeds of {{convert|100|km/h|abbr=on}} to {{convert|120|km/h|abbr=on}}, essentially doubling the average speed of freight trains in the sector.

==Development==
[[File:WAG 12 Indian Railways.png|thumb|306x306px|WAG 12 locomotive details]]
The origins of WAG-12B can be traced back to a railway project approval in 2006, but no progress was made in the months that followed.<ref name=" WAG12 2006">{{cite web
|title=Six firms vie for Bihar locomotive project|url=http://www.livemint.com/Industry/J13HPpXSANir0rblFIXeKK/Six-firms-vie-for-Bihar-locomotive-project.html|publisher=Livemint|access-date=2 January 2018
}}</ref> In June 2008, the [[Ministry of Railways (India)|Ministry of Railways]] invited bids from global firms to design and develop the locomotives. The initial deal was to set up a new electric locomotive factory at [[Madhepura]], [[Bihar]] to build and maintain 660 high-horsepower locomotives in a joint venture where Indian Railways would hold a 26% stake and the bidder 74%. This would have been the first [[foreign direct investment]] in the fully state-owned railway sector of the country.<ref>{{cite web|author1=P. R Sanjai|title=Railways to buy 660 electric engines for €3.5 billion|url=http://www.livemint.com/Companies/IZA2rlxF0e3xhJnqU07dQO/Railways-to-buy-660-electric-engines-for-35-billion.html|publisher=Livemint|access-date=2 January 2018}}</ref> This invitation received bids from [[General Electric]], Alstom, [[Bombardier Transportation|Bombardier]], [[Siemens Mobility|Siemens]], [[China CNR]] and [[CSR Corporation]]. The number of locomotives to be built was also increased from 660 to 800.<ref name=" WAG12 2006" /> The [[Research Design and Standards Organisation]] published a specification in June 2013,<ref>{{Cite web
|url=http://dfccil.gov.in/upload/Specification_9000_KW_RDSO_2006_EL_SPEC_0044_Rev_13_with_TE__curve.pdf
|title=Specification RDSO/2006/EL/SPEC/0044, Rev ‘13’
|date=June 2013
}}</ref> detailing the capability requirements for an eight-axle locomotive intended to be used on [[Dedicated Freight Corridor Corporation of India|Dedicated Freight Corridors]] (DFC). It was not until November 2015, however, that Alstom was finally awarded the contract to build the locomotives.<ref>{{cite web|title=Alstom wins Indian electric locomotive contrac|url=http://www.railjournal.com/index.php/asia/alstom-clinches-indian-electric-locomotive-contract.html|publisher=[[International Railway Journal]]|access-date=2 January 2018}}</ref>

They are three phase, twin-section [[electric locomotive|electric]] freight [[locomotive]] consisting of two identical sections, each of which rests on two twin-axled Bo-Bo bogies. The locomotive is being jointly developed by [[Alstom]] and the [[Indian Railways]], and is the first Indian Railways locomotive that has a power output greater than 10,000 [[horsepower]]. With a power output of 12,000 HP,<ref name="first of 10khp">{{cite web|title=India Gets Its First High Horse Power Locomotive From France|url=https://www.ndtv.com/india-news/india-gets-its-first-high-horse-power-locomotive-from-france-1753112|access-date=2 January 2018|publisher=NDTV}}</ref> it is twice as powerful as its immediate predecessor, [[WAG 9|WAG-9]], and is one of the most powerful freight locomotives in the world.<ref name="most powerful loco" /><ref name="regen brake">{{cite web|title=Alstom to manufacture 800 high HP electric locomotives in Madhepura|url=https://economictimes.indiatimes.com/industry/transportation/railways/alstom-to-manufacture-800-high-hp-electric-locomotives-in-madhepura/articleshow/49739170.cms|access-date=2 January 2018|publisher=Economic Times}}</ref>

The eight-axle design of the locomotive reportedly improves performance and minimises energy consumption and maintenance costs. The locomotive incorporates special features based on the Alstom Prima T8 for operations in humid or dusty environments and extreme temperatures ranging from {{convert|-50|C}} to {{convert|50|C}}. The cabin of the locomotive is comparatively larger and offers better comfort for drivers, especially during long-distance operations. The locomotives can also be equipped with climate control systems such as air conditioners, food preparation and storage facilities, and even a toilet<ref name="prima t8 specs" />—a standard that Indian Railways introduced in 2016.<ref>{{cite web|last1=Sood|first1=Jyotika|title=After 163 years, Railways to put toilets in train engines|url=http://www.livemint.com/Politics/mJQ1KGRQ0jrLGxOITzKhAO/After-163-years-Railways-to-put-toilets-in-train-engines.html|publisher=LiveMint|access-date=5 January 2018}}</ref>

Development of the locomotive began after Indian Railways signed a record deal in November 2015 with Alstom for the development of 800 high-horsepower electric freight locomotives. As per the largest Foreign Direct Investment (FDI) project of Indian Railways, in 2015 the [[Ministry of Railways (India)|Ministry of Railways]] and Alstom signed a contract worth {{INRConvert|25000|c|year=2015|lk=}}.<ref>{{Cite web|title=Alstom’s first Prima electric locomotive delivered to Indian Railways begins operation|url=https://www.alstom.com/press-releases-news/2020/5/alstoms-first-prima-electric-locomotive-delivered-indian-railways-begins|access-date=24 May 2020|website=Alstom|language=en}}</ref><ref>{{cite web|title=Railways inks pact with GE, Alstom for loco factories|url=http://www.thehindubusinessline.com/economy/logistics/railways-signs-contracts-with-ge-alstom/article7933673.ece|access-date=2 January 2018|publisher=The Hindu}}</ref> and created a joint venture for the project. The first locomotive of the class was initially expected to enter service on 28 February 2018.<ref name="feb 28 launch">{{cite web|title=First electric locomotive from Madhepura factory in Bihar to roll out on February 28|url=http://www.hindustantimes.com/patna/first-electric-locomotive-from-madhepura-factory-in-bihar-to-roll-out-on-february-28/story-faEqBBYHsUL5ZInctD9qkO.html|access-date=2 January 2018|publisher=Hindustan Times}}</ref> However, the locomotive was launched by [[Prime Minister of India|Prime Minister]] [[Narendra Modi]] in [[Madhepura]], [[Bihar]] on 10 April 2018.<ref>{{Cite news|last=Team|first=BS Web|date=10 April 2018|title=Modi launches India's most powerful electric locomotive in Bihar: 10 facts|work=Business Standard India|url=http://www.business-standard.com/article/current-affairs/modi-to-launch-india-s-most-powerful-electric-locomotive-in-bihar-10-facts-118041000209_1.html|access-date=10 April 2018}}</ref>

== Production ==
As development of the engines progressed, Alstom outsourced the task of producing traction transformers for the locomotives to Swedish-Swiss [[multinational corporation]] [[ABB]] in 2016. These all-weather transformers were to be produced in [[Vadodara]], [[Gujarat]].<ref>{{cite web
|title=Prima India locos to have ABB transformers
|url=http://www.railwaygazette.com/news/technology/single-view/view/prima-india-locos-to-have-abb-transformers.html
|publisher=[[Railway Gazette International]]
|access-date=2 January 2018
}}</ref> In 2017, Alstom outsourced the task of developing, testing, and maintaining the brakes of the locomotives to [[Germany|German]] brake manufacturing firm [[Knorr-Bremse]]. These brakes were to be produced at [[Palwal]] in the Indian state of [[Haryana]].<ref>{{cite web
|title=Knorr-Bremse to supply brakes for Alstom’s Indian locomotives
|url=http://www.railwaygazette.com/news/traction-rolling-stock/single-view/view/knorr-bremse-to-supply-brakes-for-alstoms-indian-locomotives.html
|publisher=Railway Gazette International
|access-date=2 January 2018
}}</ref> The [[Railway coupling|couplers]] of the locomotive were designed and developed by French Railway company [[Faiveley Transport]]. Around 85-90% of the components will be procured from within India.<ref name="most powerful loco" >{{cite web
|title=Local sourcing to be major focus of Alstom’s Madhepura e-loco factory
|url=http://www.thehindubusinessline.com/economy/logistics/local-sourcing-to-be-nahor-focus-of-alstoms-madhepura-eloco-factory/article9967633.ece
|publisher=The Hindu Business Line
|access-date=2 January 2018
}}</ref> The first body shell of the locomotive was delivered to the [[Haldia Port]] in [[West Bengal]] on 20 September 2017. It was then transferred to the Electric Locomotive Factory (Alstom Madhepura) for final assembly,<ref name="WAG12 name & delivery" /> which began on 11 October 2017.<ref name="WAG 12B prod begin" /><ref>{{Cite news
|newspaper=[[The Indian Express|Financial Express]]
|url=http://www.financialexpress.com/photos/business-gallery/897502/indian-railways-electric-locomotive-alstom-make-in-india-madhepura-images-facts/
|title=Indian Railways WAG 12
}}</ref> The first locomotive, numbered 60001, was tested in the Madhepura factory on 27 February 2018, one day before its initial launch date.<ref name="feb 28 launch" /><ref name="test date and fleet number">{{cite web|title=Alstom Prima locomotive for Indian Railways on test|url=http://www.railwaygazette.com/news/traction-rolling-stock/single-view/view/alstom-prima-locomotive-for-indian-railways-on-test.html|publisher=Railway Gazette International|access-date=2 March 2018|date=27 February 2018}}</ref>

Deliveries of the locomotives are planned from 2018 through 2028, with the first locomotive slated to enter service in 2018, and a total of five by 2019. This is to be followed by the assembly of 35 new locomotives in 2020, 60 in 2021, and 100 locomotives each year from 2022 until all 800 locomotives are delivered.<ref>{{cite web
|title=Faster, Fitter & French: 7 Things to Know About India’s New High-Power Locomotives
|url=https://www.thebetterindia.com/116452/indian-railways-things-to-know-about-indias-new-high-power-locomotives/
|publisher=The Better India|access-date=2 January 2018
}}</ref>

{| class="wikitable"
|+ Delivery schedule<ref name="most powerful loco" />
|-
! 2018 !! 2019 !! 2020 !! 2021 !! 2022 !! 2023 !! 2024 !! 2025 !! 2026 !! 2027 !! 2028 !! Total
|-
| || 10 || 90 || 100 || 100 || 100 || 100 || 100 || 100 || 100 || 100 || '''800'''
|}

{{clear}}

==Locomotive shed==
{| class="wikitable"
|-
! Zone !! Name !! Shed Code !! Quantity
|-
|[[Northern Railway zone|Northern Railway]]|| [[Saharanpur Junction railway station|Saharanpur]] || SRE<ref>http://elocos.railnet.gov.in/Holding/Holding_11_20.pdf</ref> || 118
|-
| colspan="3" |'''Total Locomotives Active as of July 2021''' || 118
|}

==See also==
* [[Rail transport in India]]
* [[Locomotives of India]]
* [[Dedicated Freight Corridor Corporation of India]]

==References==
{{Reflist}}

==External links==
* [http://www.kportal.indianrailways.gov.in/index.php/blog/76-general/144-electric-locomotive-factory-at-madhepura-bihar Electric Locomotive Factory at Madhepura, Bihar]

{{commons category|Indian locomotive class WAG-12}}

{{Broad gauge locomotives of India}}

{{DEFAULTSORT:Indian Locomotive Class WAG-12}}
[[Category:Electric locomotives of India]]
[[Category:25 kV AC locomotives]]
[[Category:Bo′Bo′+Bo′Bo′ locomotives]]
[[Category:5 ft 6 in gauge locomotives]]