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{{Use Indian English|date=May 2020}} | {{Use Indian English|date=May 2020}} | ||
{{Use mdy dates|date = May 2020}} | {{Use mdy dates|date = May 2020}} | ||
{{More citations needed|date=January 2025}} | |||
{{Infobox locomotive | {{Infobox locomotive | ||
| name = WAM-1 | | name = WAM-1 | ||
| image = | | image = WAM1 20202 locomotive.jpg | ||
| caption = | | caption = | ||
| powertype = Electric | | powertype = Electric | ||
| builder = Kraus-Maffei, Krupp, SFAC, La Brugeoise & Nivelle (50 cycles European group) | | builder = Kraus-Maffei, Krupp, SFAC, La Brugeoise & Nivelle (50 cycles European group) | ||
| gauge = {{Track gauge|5ft6in|lk=on}} | | gauge = {{Track gauge|5ft6in|lk=on}} | ||
| poweroutput = | | poweroutput = Maximum: {{convert|3010|hp|kW|abbr=on}}<br>Continuous: {{convert|2870|hp|kW|0|abbr=on}} | ||
| maxspeed = {{convert|112|km/h|mph|0|abbr=on}} | | maxspeed = {{convert|112|km/h|mph|0|abbr=on}} | ||
| tractiveeffort = Starting : {{convert|25000|kgf|kN lbf|abbr=on}} | | tractiveeffort = Starting : {{convert|25000|kgf|kN lbf|abbr=on}} | ||
| builddate = | | builddate = 1959–1961 | ||
| uicclass = B-B | | uicclass = B-B | ||
| bogies = Monomotor B-B bogies | | 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}} | | 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}} | | length = {{convert|14.600|m|ftin|abbr=on|frac=32}} | ||
| height = {{convert|4.165|m|ftin|abbr=on|frac=32}} | | height = {{convert|4.165|m|ftin|abbr=on|frac=32}} | ||
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| aarwheels = B-B | | aarwheels = B-B | ||
| electricsystem = {{25 kV 50 Hz}} | | electricsystem = {{25 kV 50 Hz}} [[Overhead line|Overhead]] | ||
| collectionmethod = [[pantograph (rail)|pantograph]] | | collectionmethod = [[pantograph (rail)|pantograph]] | ||
| locale = All over [[India]] | | locale = All over [[India]] | ||
| disposition = | | preservedunits = 1 | ||
| disposition = Withdrawn from service and all except one scrapped | |||
| lastrundate = late 1990s | |||
| withdrawndate = 1999 | |||
| scrapdate = early 1990s-2000s | |||
}} | }} | ||
The Indian locomotive class '''WAM-1''' | The Indian locomotive class '''WAM-1''' was a class of 25 [[Volt|kV]] [[Alternating current|AC]] [[electric locomotive]]s that was developed in the late 1950s by the ''Groupement 50 Hz'' (a consortium of European locomotive manufacturers) for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], AC Current (A), Mixed traffic (M) locomotive, 1st generation (1). They entered service in 1960, thus making them the first AC electric [[Electric locomotive|locomotive]]s to be in service in India. A total of 100 WAM-1s were built by the European consortium between 1959 and 1961, which made them the most numerous class of mainline electric locomotive until the [[Indian locomotive class WAG-1|WAG-1.]]<ref>{{Cite web|url=https://24coaches.com/electric-locomotive-roster-the-wap-series/|title = Electric Locomotive Roster: The WAP Series!|date = September 3, 2016}}</ref><ref>{{cite web|access-date=2019-06-19|title=[IRFCA] A Brief History of Railway Electrification in India|url=https://www.irfca.org/articles/electric-2.html|website=www.irfca.org}}</ref> | ||
The WAM-1 served both passenger and freight trains for over 40 years. This class though | The WAM-1 served both passenger and freight trains for over 40 years. This class, though initially not a great success, provided the basic design for the [[Indian locomotive class WAM-4|WAM-4]], which a number of other locomotives are based upon. However, with the advent of new 3-phase locomotives like the [[WAP-5]] and [[WAP-7]],{{Original research inline|date=January 2025}} the aging fleet of WAM-1 locomotives were relegated to freight and shunting duties, with all of them eventually being withdrawn from service. The single surviving unit named 'Jagjivan Ram' has been preserved at the [[Kolkata Rail Museum, Howrah|Kolkata Rail Museum]] in Howrah. | ||
== Locomotive shed == | == Locomotive shed == | ||
* All | * All locomotives of this class have been withdrawn from service and all except one being scrapped. | ||
==See also== | ==See also== | ||
* | *{{section link|Rail transport in India|History}} | ||
*[[Indian Railways]] | *[[Indian Railways]] | ||
*[[Locomotives of India]] | *[[Locomotives of India]] | ||
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{{Broad gauge locomotives of India}} | {{Broad gauge locomotives of India}} | ||
{{DEFAULTSORT:WAM-1}} | |||
[[Category:25 kV AC locomotives]] | [[Category:25 kV AC locomotives]] | ||
[[Category:B-B locomotives]] | [[Category:B-B locomotives]] | ||
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[[Category:Railway locomotives introduced in 1959]] | [[Category:Railway locomotives introduced in 1959]] | ||
[[Category:5 ft 6 in gauge locomotives]] | [[Category:5 ft 6 in gauge locomotives]] | ||
[[Category:La Brugeoise et Nivelles locomotives]] | |||
[[Category:Krauss locomotives]] | |||
[[Category:Krupp locomotives]] | |||
Latest revision as of 20:47, 20 March 2026
 | This article needs additional citations for verification. (January 2025) |
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The Indian locomotive class WAM-1 was a class of 25 kV AC electric locomotives that was developed in the late 1950s by the Groupement 50 Hz (a consortium of European locomotive manufacturers) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Mixed traffic (M) locomotive, 1st generation (1). They entered service in 1960, thus making them the first AC electric locomotives to be in service in India. A total of 100 WAM-1s were built by the European consortium between 1959 and 1961, which made them the most numerous class of mainline electric locomotive until the WAG-1.[1][2]
The WAM-1 served both passenger and freight trains for over 40 years. This class, though initially not a great success, provided the basic design for the WAM-4, which a number of other locomotives are based upon. However, with the advent of new 3-phase locomotives like the WAP-5 and WAP-7,[original research?] the aging fleet of WAM-1 locomotives were relegated to freight and shunting duties, with all of them eventually being withdrawn from service. The single surviving unit named 'Jagjivan Ram' has been preserved at the Kolkata Rail Museum in Howrah.
Locomotive shed[edit | edit source]
- All locomotives of this class have been withdrawn from service and all except one being scrapped.
See also[edit | edit source]
References[edit | edit source]
- ↑ "Electric Locomotive Roster: The WAP Series!". September 3, 2016.
- ↑ "[IRFCA] A Brief History of Railway Electrification in India". www.irfca.org. Retrieved June 19, 2019.
External links[edit | edit source]
- [1]
- [IRFCA] Indian Railways FAQ: Locomotives—Specific classes : AC Electric
- [IRFCA] Indian Railways FAQ: Diesel and Electric Locomotive Specifications
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