Indian locomotive class WAP-5
Encyclopedia
WAP 5 is the name of a class of electric locomotive
Electric locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or an on-board energy storage device...

 used by Indian Railways
Indian Railways
Indian Railways , abbreviated as IR , is a departmental undertaking of Government of India, which owns and operates most of India's rail transport. It is overseen by the Ministry of Railways of the Government of India....

. The first 10 locomotives were imported from ABB
Adtranz
ABB Daimler-Benz Transportation , commonly known under its brand Adtranz, was a multi-national rail transport equipment manufacturer with facilities concentrated in Europe and the USA....

 in Switzerland
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 in 1995. They are supposed to be a variant of the Lok 2000
Lok 2000
The Re 460 series are modern four-axle electric locomotives of the Swiss Federal Railways. They originally replaced Re 420, Re 440, Re 620 locomotives. They were introduced as part of the Bahn 2000 project, a massive project to modernise and improve capacity on Switzerland's railways...

. Chittaranjan Locomotive Works (CLW) started production in 2000. It was designed to haul 18 coach passenger trains at 162 km/h (101 mph). It is the first 3-phase locomotive in India.

Other notable features of this locomotive are the provision of taps from the main transformers for hotel load, pantry loads, flexible gear coupling, wheel-mounted disc brakes, and a potential for speed enhancement to 225 km/h (140 mph). Braking systems include regenerative braking (160kN), loco disc brakes, automatic train air brakes, and a charged spring parking brake. MU operation possible with a maximum of two locos. At trials, a WAP-5 has been tested up to 184 km/h (114 mph).

The WAP-5 series of locomotives haul the premium trains on Indian Railways like the Mumbai Rajdhani Express
Mumbai Rajdhani Express
The 12951/12952 Mumbai Rajdhani Express connects Mumbai and Delhi. It is one of the fastest trains in India.- Service :The 12951/12952 Mumbai Rajdhani Express is the fastest train on the Mumbai - Delhi sector and the fastest Rajdhani train. It is a daily service...

, Bhopal Shatabdi Express, Lucknow Shatabdi Express, Prayagraj Express
Prayagraj Express
Prayag Raj Express is an Indian Railways' express train which runs between the cities of Allahabad and New Delhi, India. It has 24 coaches including 7 air-conditioned coaches. It runs on the North Central Railways section which is part of the busy Grand Trunk section...

, etc. The Bhopal Shatabdi hauled by a WAP-5 travels at 162 km/h (101 mph) in the New Delhi
New Delhi
New Delhi is the capital city of India. It serves as the centre of the Government of India and the Government of the National Capital Territory of Delhi. New Delhi is situated within the metropolis of Delhi. It is one of the nine districts of Delhi Union Territory. The total area of the city is...

 - Agra Cantt
Agra Cantt
Agra Cantonment is the main railway station in the Indian city of Agra. It is located near the Sadar Bazaar towards the Southwest of the city. Agra Cantonment is directly managed by the North Central Railways.-See also:*Agra Fort Railway Station...

 and Gwalior - Morena
Morena
Morena is a city and a municipality in Morena district in the Indian state of Madhya Pradesh. It is also known as Muraina and is the administrative headquarters of Morena District and of Chambal Division. It is 39 km away from Gwalior, Madhya Pradesh...

 section.

Around 35 of these locomotives have been put to service as of early 2011.

Technical specification

Specifications are as follows:
Manufacturers ABB / Chittaranjan Locomotive Works
Capacity 4 MW (4000 kW, 5450 hp)
Traction Motors ABB's 6FXA 7059 3-phase squirrel cage induction motors (1150kW, 2180V, 370/450A, *1583/3147 rpm) Weight 2050 kg. Forced-air ventilation, fully suspended. Torque 6930/10000 Nm. 96% *efficiency.
Gear Ratio 67:35:17. (3-stage gears)
Transformer ABB's LOT-7500. 7475kVA primary, 4x1450kVA secondary.
Power Drive Power converter from ABB, type UW-2423-2810 with SG 3000G X H24 GTO thyristors (D *921S45 T diodes), 14 thyristors per unit (two units). Line converter rated at 2 x 1269 V @ 50 Hz, *with DC link voltage of 2180 V. Drive converter rated at 2180 V phase to phase, 953 A output current *per phase, motor frequency from 0 to 160 Hz.
Axle load 19.5 t
Bogies Bo-Bo Henschel Flexifloat; bogie centre distance 10200 mm; bogie wheelbase 2800 mm
  • Unsprung mass per axle: 2.69t
Pantographs Two Stone India (Calcutta) AM-92, Schunk
SCHUNK
SCHUNK Intec, Inc. is a multinational manufacturing company, based principally in Germany and in the United States. The company operates worldwide in more than 50 countries with wholly owned subsidiaries, five manufacturing locations in Germany, USA and China, and distribution partners all over the...

 for the imported locomotives.
Wheel diameter 1092 mm new, 1016 mm worn
Wheelbase 13000 mm
Length over buffers 18162 mm
Length over headstocks 19280 mm
Body width 3142 mm
Cab length 2434 mm
Pantograph locked down height 4237 mm


Technical data WAP-5
General
Operator IR
Supplier mechanical part ABB, CLW
Supplier electrical part BBC
Axel arr Bo-Bo
Weight 78,0 t
Axle load 19,5 t
Max tractive eff 258 kN
Max speed 160 km/h
Body
Length 18.162 mm
Bogie distance 10.200 mm
Height over pantograph 4.237 mm
Body width 3.142 mm
Coupling central coupling & buffers
Surface corrugated
Colour white & red
Bogies
Type Flexifloat
Track width 1.676 mm
Axle distance 2.800 mm
Wheel diameter,new/worn 1.092/1.016 mm
Primary suspension coil
Secondary suspension coil
Electrical equipment
Catenary voltage 25 kV
Catenary frequency 50 Hz
Max cont power, rail 4,0 MW
Traction motor 6FXA 7059
Weight motor 2,05 t
Manufacturer ABB
Type Power converter UW-2423-2810
Semiconductor Thyristor
Manufacturer ABB
Main Transformer LOT-7500
Manufacturer ABB
Max power Transformer 7.475 kVA
Manufacturer ABB

See also

  • Indian Railways
    Indian Railways
    Indian Railways , abbreviated as IR , is a departmental undertaking of Government of India, which owns and operates most of India's rail transport. It is overseen by the Ministry of Railways of the Government of India....

  • Indian Locomotives
    Indian locomotives
    Locomotives in India consist of electric and diesel locomotives. Steam locomotives are no longer used, except in heritage trains. Locomotives are also called locos or engines....

  • Indian Locomotive Class WDM-2
    Indian locomotive class WDM-2
    The class WDM-2 is Indian Railways' workhorse diesel locomotive. The first units were imported fully built from the American Locomotive Company in 1962. Since 1964, it has been manufactured in India by the Diesel Locomotive Works , Varanasi. The model name stands for broad gauge , diesel , mixed...

  • Indian locomotive class WAP-4
    Indian locomotive class WAP-4
    WAP-4 is one of the most important electric locomotives used in India. It is a very powerful class capable of hauling 26 coaches at a speed of 140 km/h...

  • Indian locomotive class WAP-7
    Indian locomotive class WAP-7
    WAP 7 is a high speed locomotive indigenously developed by Chittaranjan Locomotive Works. It is capable of hauling trains at speeds ranging between 140 and 160 km per hour and is now largely used by Northern Railways , South Central Railways , South Western Railway and Southern Railways .-...

  • Indian locomotive class WAG-9
    Indian locomotive class WAG-9
    WAG-9 is the name of a type of electric locomotive used in India. Homed mainly at Gomoh, Ajni,Lallaguda,Tughlakabad and Bhilai, it is currently the most powerful locomotive in Indian Railways' fleet. It is very similar to the class WAP-7; The only difference being the gear ratio which makes it...


External links

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