The Indian locomotive class WAG-1 is a class of 25 kV AC

electric locomotive An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or on-board energy storage such as a battery or a supercapacitor. Locomotives with on-board fuelled prime movers, such as diesel engines or gas ...

s that was imported from Europe in 1960s for

Indian Railways Indian Railways (IR) is a statutory body under the ownership of Ministry of Railways, Government of India that operates India's national railway system. It manages the fourth largest national railway system in the world by size, with a tot ...

. The model name stands for 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 50 Hz Group/European Group/50 Cycles Group (consortium) between 1963 and 1966. They entered service in 1964. The WAG-1 served both passenger and freight trains for over 40 years. As of January 2002, 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 The National Rail Museum in Chanakyapuri, New Delhi, displays exhibits on the history of rail transport in India. The museum was inaugurated on 1 February 1977. The museum spans over an area of over 11 acres and the indoor gallery compris ...

.https://www.irfca.org/faq/faq-loco2e.html#wap-1 [IRFCA] Indian Railways FAQ: Locomotives—Specific classes : AC Electric ;Variants *WAG-1S

Specification

*Build dates: 1963-66 *

Wheel arrangement In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and c ...

: B-B ( monomotor bogies ) *

Traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles (ele ...

s: AEC/

Alstom Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia ...

Siemens Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', '' ...

MG1420. Two motors ( monomotor

bogie A bogie ( ) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transp ...

s), force-ventilated, fully suspended. *

Gear ratio A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission ...

: 3.95:1 *

Transformer A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer' ...

: MFO, type BOT 3150. 22.5 kV / 3000 kVA. 32 taps. *

Rectifier A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The reverse operation (converting DC to AC) is performed by an Power ...

s: Secheron A268 Excitrons (four). 510 A / 1250 V. *Axle load: 21.3 t *Max. Haulage: 1820 t *

Pantographs A pantograph (, from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. If a line dr ...

: Two Faiveley AM-12

Locomotive shed

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

References

External links

[IRFCA] Indian Railways FAQ: Locomotives—Specific classes : AC Electric
* ttp://www.indianrailways.gov.in/railwayboard/uploads/codesmanual/ACTraction-I/AcTractionI_ADDITIONAL_Data.htm 11081 Colour Photographs

{{Broad gauge locomotives of India 25 kV AC locomotives B-B locomotives Electric locomotives of India Railway locomotives introduced in 1964 5 ft 6 in gauge locomotives Chittaranjan Locomotive Works locomotives

History

Specification

Locomotive shed

See also

References

External links