Indian locomotive class WAM-4: Difference between revisions
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The Indian locomotive class WAM-4 is a very successful class of 25 kV AC electric locomotives used in India. The first member of the class was indigenously designed and built by CLW in 1970-71. The class was produced until about 1997.
The locomotives in the class feature rheostatic braking, and MU capability. They use the same power bogies as the successful WDM-2 class of diesel-electric locomotives. Being designed specially for mixed traffic, the WAM-4 class has rendered excellent service.
Image Gallery
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WAM 4 series loco 20491 with VSKP-Nanded Express
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WAM 4 series loco 21226 at Moulaali
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WAM 4 series loco 21219 at Visakhapatnam
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13022 (Raxaul-Howrah) Mithila Express
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WAM-4P loco of BZA at Secunderabad
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WAM 4 with the Malwa Express
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12295 (SBC-PNBE) Sanghamitra Express
Technical specifications[1]
Traction Motors | Alstom TAO 659 A1 (575kW, 750V). Six motors, axle-hung, nose-suspended, force-ventilated. |
Gear Ratio | 15:62 originally (and still for WAM-4 2S3P), now many variations, 21:58 being common for WAM-4 6P locos. |
Transformer | Heil BOT 3460 A, 22.5kV / 3460kVA. |
Rectifiers | Two silicon rectifier cells, 1270V / 1000A each cubicle. |
Pantographs | Two Faiveley AM-12. |
Hauling capacity | 2010t |
Current Ratings | (WAM-4 6P) 1100A/10min, 750A continuous |
See also
References
Notes
Bibliography
- Hughes, Hugh (1996). Indian Locomotives: Part 4 – 1941–1990. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-1-1. OCLC 35135033.
External links
Wikimedia Commons has media related to Indian locomotive class WAM4.