https://indianpedia.org/index.php?action=history&feed=atom&title=Indian_locomotive_class_WAM-1Indian locomotive class WAM-1 - Revision history2026-07-31T21:32:39ZRevision history for this page on the wikiMediaWiki 1.45.4https://indianpedia.org/index.php?title=Indian_locomotive_class_WAM-1&diff=450730&oldid=prevAlannahHudspeth at 15:17, 20 March 20262026-03-20T15:17:14Z<p></p>
<p><b>New page</b></p><div>{{Use Indian English|date=May 2020}}<br />
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{{Infobox locomotive<br />
| name = WAM-1<br />
| image = WAM1 20202 locomotive.jpg<br />
| caption = <br />
| powertype = Electric<br />
| builder = Kraus-Maffei, Krupp, SFAC, La Brugeoise & Nivelle (50 cycles European group) <br />
| gauge = {{Track gauge|5ft6in|lk=on}}<br />
| poweroutput = Maximum: {{convert|3010|hp|kW|abbr=on}}<br>Continuous: {{convert|2870|hp|kW|0|abbr=on}}<br />
| maxspeed = {{convert|112|km/h|mph|0|abbr=on}}<br />
| tractiveeffort = Starting : {{convert|25000|kgf|kN lbf|abbr=on}}<br />
| builddate = 1959–1961<br />
| uicclass = B-B <br />
| bogies = Monomotor B-B bogies<br />
| 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}}<br />
| length = {{convert|14.600|m|ftin|abbr=on|frac=32}}<br />
| height = {{convert|4.165|m|ftin|abbr=on|frac=32}}<br />
| width = {{convert|3.109|m|ftin|abbr=on|frac=32}}<br />
| axleload = {{convert|18640|kg|abbr=on}}<br />
| locoweight = {{convert|74000|kg|abbr=on}}<br />
| tractionmotors = Siemens/ACEC/Alstom MG 710A (740hp, 1250V, 480A, 1000 rpm, weight 2750kg). Fully suspended, force-ventilated.<br />
| locobrakes = [[Railway air brake|Air]]<br />
| trainbrakes = vacuum train brakes.<br />
<br />
| operator = [[Indian Railways]]<br />
| fleetnumbers = 20200-20299 <br />
| totalproduction = 100<br />
| aarwheels = B-B<br />
<br />
| electricsystem = {{25 kV 50 Hz}} [[Overhead line|Overhead]] <br />
| collectionmethod = [[pantograph (rail)|pantograph]]<br />
| locale = All over [[India]]<br />
| preservedunits = 1 <br />
| disposition = Withdrawn from service and all except one scrapped<br />
| lastrundate = late 1990s <br />
| withdrawndate = 1999<br />
| scrapdate = early 1990s-2000s<br />
}}<br />
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><br />
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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.<br />
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== Locomotive shed ==<br />
* All locomotives of this class have been withdrawn from service and all except one being scrapped.<br />
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==See also==<br />
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*{{section link|Rail transport in India|History}}<br />
*[[Indian Railways]]<br />
*[[Locomotives of India]]<br />
*[[Rail transport in India]]<br />
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==References==<br />
{{Notelist-lr}}<br />
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{{reflist}}<br />
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== External links ==<br />
{{commons category|Indian locomotive class WAM1}}<br />
*[https://24coaches.com/ac-electric-locomotives-roster-the-wam-class]<br />
*[https://www.irfca.org/faq/faq-loco2e.html#wam-1 &#91;IRFCA&#93; Indian Railways FAQ: Locomotives—Specific classes : AC Electric]<br />
*[https://www.irfca.org/faq/faq-specs.html#WAM-1 &#91;IRFCA&#93; Indian Railways FAQ: Diesel and Electric Locomotive Specifications]<br />
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{{Broad gauge locomotives of India}}<br />
<br />
{{DEFAULTSORT:WAM-1}}<br />
[[Category:25 kV AC locomotives]]<br />
[[Category:B-B locomotives]]<br />
[[Category:Electric locomotives of India]]<br />
[[Category:Railway locomotives introduced in 1959]]<br />
[[Category:5 ft 6 in gauge locomotives]]<br />
[[Category:La Brugeoise et Nivelles locomotives]]<br />
[[Category:Krauss locomotives]]<br />
[[Category:Krupp locomotives]]</div>AlannahHudspeth