>Ira Leviton at 17:11, 29 December 2020

2020-12-29T17:11:07Z

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{{Use Indian English|date=May 2020}}
{{Use mdy dates|date = May 2020}}
{{Infobox locomotive
| name = Indian locomotive class WAG-1
| image = File:WAG1 20710 locomotive.jpg
| alt =
| caption = WAG1 20710 Bidhaan at [[National Rail Museum, New Delhi|NRM]]
| powertype = Electric
| builder = Kraus-Maffei, Krupp, SFAC, La Brugeoise & Nivelle (50 cycles European group)
| gauge = {{Track gauge|5ft6in|lk=on}}
| poweroutput = MAX:2930HP Continuous: {{convert|2930|hp|kW|0|abbr=on}}
| maxspeed = {{convert|112|km/h|mph|0|abbr=on}}
| tractiveeffort = Starting : {{convert|25000|kgf|kN lbf|abbr=on}}
| builddate = 1963-1966
| uicclass = B-B
| bogies = Monomotor B-B bogies
| wheeldiameter = New:{{convert|1140|mm|ftin|0|abbr=on}}<br>Half worn: {{convert|1120|mm|ftin|abbr=on|frac=2}}<br>Full worn: {{convert|1064|mm|ftin|0|abbr=on}}
| length = {{convert|14.600|m|ftin|abbr=on|frac=32}}
| height = {{convert|4.165|m|ftin|abbr=on|frac=32}}
| width = {{convert|3.109|m|ftin|abbr=on|frac=32}}
| axleload = {{convert|18640|kg|abbr=on}}
| locoweight = {{convert|74000|kg|abbr=on}}
| tractionmotors = Siemens/ACEC/Alstom MG 710A (740hp, 1250V, 480A, 1000 rpm).Fully suspended, force- ventilated.
| locobrakes = [[Railway air brake|Air]]
| trainbrakes = vacuum train brakes.
| operator = [[Indian Railways]]
| fleetnumbers = 20700-20709 (Niv. / SFAC) 20710-20791 (CLW) 20849-20868 (Niv. / SFAC)
| totalproduction = 112
| aarwheels = B-B
| electricsystem = {{25 kV 50 Hz}} [[Alternating current|AC]] [[Overhead line|Overhead]]
| collectionmethod = [[pantograph (rail)|pantograph]]
| locale = All over [[India]]
| disposition = Retired
}}

The Indian locomotive class '''WAG-1''' is a class of 25 [[Volt|kV]] [[Alternating current|AC]] [[electric locomotive]]s that was imported from Europe in 1960s for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], AC Current (A), Goods traffic (G) engine, 1st (1). A total of 112 WAG-1 locomotives were built by The European Group 50Hz Group/European Group/50 Cycles Group (consortium) between 1963 and 1966. They entered service in 1964.<ref>https://www.irfca.org/faq/faq-specs.html#WAP-1 [IRFCA] Indian Railways FAQ: Diesel and Electric Locomotive Specifications</ref>

The WAG-1 served both passenger and freight trains for over 40 years. As of January 2020, All locomotives have been removed from service all but one were scrapped.

== History ==
Forty-two locomotives of this type were ordered from European Group. Five of these were completely assembled in Europe and the remaining were built at CLW. A repeat order was placed on for 20 locomotives in 1963. Further these locomotives were manufactured at CLW. The typical feature of these locomotive is the Monomotor bogies. This construction results in substantial saving in weight in traction equipment and gives better adhesion. The traction motors are force ventilated and are fully suspended type. These motors are permanently grouped in parallel and are controlled by tap changer and field weakening. This can be used for a multiple unit operation to a maximum of four locomotives. Compressed air brake for the loco and vacuum brake for the train are provided, in addition, these locomotives have been provided with regenerative braking. Few locomotives have been converted to dual brake system. They were in service until 2002 when all were scrapped. The first indigenously produced WAG-1 Bidhaan is preserved at the [[National Rail Museum, New Delhi]].<ref>https://www.irfca.org/faq/faq-loco2e.html#wap-1 [IRFCA] Indian Railways FAQ: Locomotives—Specific classes : AC Electric</ref>

;Variants
*WAG-1S

== Specification ==
*Build dates: 1963-66
*[[UIC classification of locomotive axle arrangements|Wheel arrangement]]: B-B ( monomotor bogies )
*[[Traction motor]]s: AEC/[[Alstom]]/[[Siemens]] MG1420. Two motors ([[monomotor]] [[bogie]]s), force-ventilated, fully suspended.
*[[Gear ratio]]: 3.95:1
*[[Transformer]]: MFO, type BOT 3150. 22.5 kV / 3000 kVA. 32 taps.
*[[Rectifier]]s: [[Société Anonyme des Ateliers de Sécheron|Secheron]] A268 Excitrons (four). 510 A / 1250 V.
*Axle load: 21.3 t
*Max. Haulage: 1820 t
*[[Pantograph (rail)|Pantographs]]: Two Faiveley AM-12

== Locomotive shed ==
* All the locomotives of this class has been withdrawn from service.

==See also==

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

{{commons category|Indian locomotive class WAG-1}}

==References==
{{Notelist-lr}}

{{reflist}}

== External links ==
*[https://www.irfca.org/faq/faq-loco2e.html#wap-1 [IRFCA] Indian Railways FAQ: Locomotives—Specific classes : AC Electric]
*[https://www.irfca.org/faq/faq-specs.html#WAP-1 [IRFCA] Indian Railways FAQ: Diesel and Electric Locomotive Specifications]
*[http://www.indianrailways.gov.in/railwayboard/uploads/codesmanual/ACTraction-I/AcTractionI_ADDITIONAL_Data.htm 11081 Colour Photographs], [[Indian Railways]]

{{Broad gauge locomotives of India}}

[[Category:25 kV AC locomotives]]
[[Category:B-B locomotives]]
[[Category:Electric locomotives of India]]
[[Category:Railway locomotives introduced in 1964]]
[[Category:5 ft 6 in gauge locomotives]]
[[Category:Chittaranjan Locomotive Works locomotives]]

Indian locomotive class WAG-1 - Revision history

>Ira Leviton at 17:11, 29 December 2020