Indian locomotive class WAM-1

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WAM-1
WAM1 20202 locomotive.jpg
Type and origin
Power typeElectric
BuilderKraus-Maffei, Krupp, SFAC, La Brugeoise & Nivelle (50 cycles European group)
Build date1959–1961
Total produced100
Specifications
Configuration:
​
 •  AAR B-B
 •  UIC B-B
Gauge 5 ft 6 in (1,676 mm)
Bogies Monomotor B-B bogies
Wheel diameterNew: 1,140 mm (3 ft 9 in)
Half worn: 1,120 mm (3 ft 8 in)
Full worn: 1,064 mm (3 ft 6 in)
Length14.600 m (47 ft 10+13⁄16 in)
Width3.109 m (10 ft 2+13⁄32 in)
Height4.165 m (13 ft 7+31⁄32 in)
Axle load 18,640 kg (41,090 lb)
Loco weight74,000 kg (163,000 lb)
Electric system/s 25 kV 50 Hz AC AC Overhead
Current pickup(s) pantograph
Traction motors Siemens/ACEC/Alstom MG 710A (740hp, 1250V, 480A, 1000 rpm, weight 2750kg). Fully suspended, force-ventilated.
Loco brake Air
Train brakes vacuum train brakes.
Performance figures
Maximum speed112 km/h (70 mph)
Power outputMaximum: 3,010 hp (2,240 kW)
Continuous: 2,870 hp (2,140 kW)
Tractive effort Starting : 25,000 kgf (250 kN; 55,000 lbf)
Career
Operators Indian Railways
Numbers20200-20299
LocaleAll over India
Preserved1
DispositionWithdrawn from service and all except one scrapped

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 50Hz (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]

Contents

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] the aging fleet of WAM-1 locomotives were relegated to freight and shunting duties, with all of them eventually being withdrawn from service.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 National Rail Museum in New Delhi.

Locomotive shed

See also

References

    1. ↑ "Electric Locomotive Roster: The WAP Series!". September 3, 2016.
    2. ↑ "[IRFCA] A Brief History of Railway Electrification in India". www.irfca.org. Retrieved June 19, 2019.
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