The Indian locomotive class WAP-5 is the name of a class of "High Speed"

electric locomotives 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 ...

produced and used by

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 tota ...

. The first 10 locomotives were imported from ABB in

Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...

in 1995. They are supposed to be a variant of the Swiss Lok 2000 (Design concept) and German

DB Class 120 The DB Baureihe 120 is a class of electric locomotives operated by DB Fernverkehr in Germany. From 5 July 2020, almost all locomotives (except for one from the 120.2 subseries) have been withdrawn. Background and design The locomotives' prototy ...

(mechanical chassis). One of the notable features of WAP-5 is

regenerative braking Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction mo ...

. Other notable features of this loco are the provision of taps from the main loco transformer for

hotel load Hotel electric power (HEP) is electricity generated and used by a vehicle, especially a ship, truck, submarine or some turbo prop aircraft without APU generator for purposes other than propulsion such as climate control, communications, entertai ...

, pantry loads, flexible gear coupling, wheel-mounted

disc brakes A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or a "rotor" to create friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold ...

, and a potential for speed enhancement to . Braking systems include regenerative brakes, loco disc brakes, automatic train air brakes, and a charged spring

parking brake In road vehicles, the parking brake, also known as a handbrake or emergency brake (e-brake), is a mechanism used to keep the vehicle securely motionless when parked. Parking brakes often consist of a cable connected to two wheel brakes, which i ...

. On 3 July 2014, a WAP-5 set an Indian speed record by hauling a train from Delhi to Agra within 90 minutes at a speed of . The

Gatimaan Express The 12049 / 12050 Gatimaan Express is India's first semi-high speed train that runs between Delhi and Jhansi. It takes 265 minutes (around 4.5 hours) to cover the journey from Hazrat Nizamuddin to Virangana Lakshmibai Junction railway st ...

and

Bhopal Shatabdi Bhopal (; ) is the capital city of the Indian state of Madhya Pradesh and the administrative headquarters of both Bhopal district and Bhopal division. It is known as the ''City of Lakes'' due to its various natural and artificial lakes. It is ...

trains hauled by WAP-5 locomotives travel at and respectively in the

New Delhi New Delhi (, , ''Naī Dillī'') is the capital of India and a part of the National Capital Territory of Delhi (NCT). New Delhi is the seat of all three branches of the government of India, hosting the Rashtrapati Bhavan, Parliament Hous ...

Agra Cantt Agra Cantonment (station code: AGC) is the main railway station in the Indian city of Agra. It is located near the Sadar Bazaar towards the southwest of the city. It lies on the main Delhi–Chennai and one of the Delhi–Mumbai lines. Overvi ...

section.

Locomotive sheds

Named locos

* WAP-5 30011 Navodit (GZB) * WAP-5 30012 Navjagran (GZB) * WAP-5 30013 Navkirti (GZB) * WAP-5 30015 Vijay Utkarsh (GZB) * WAP-5 30044 Gaurav (BRC)

200 km/h Variant

In October 2015,

Chittaranjan Locomotive Works Chittaranjan Locomotive Works (CLW) is an electric locomotive manufacturer based in India. The works are located at Chittaranjan in the Asansol Sadar subdivision of West Bengal, with an ancillary unit in Dankuni. The main unit is 32 km fr ...

rolled out a WAP-5 locomotive (no. 30086) with a gear ratio of 59:35:19 for speed operations up to . The control software was also modified accordingly. Another locomotive (no. 30164) was rolled out with aerodynamic cab profile. This is just a trial and not intended for passenger use as the tracks are not supported in major routes.

Head-On Generation (HOG)

A main feature of Some locomotives of this class is that they eliminate the need to have separate End on Generation (EOG) sets or DG (Diesel Generator) sets for supplying power to the train resulting in significant savings on maintenance and running costs. This technology, called HOG or "Head On Generation", transfers electric power from the loco's

pantograph 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 ...

to the coaches instead of EOG where a power car equipped with diesel generator capable of generating adequate power of 3-phase 50 Hz 415 V / 750 V AC (called ' head-end power') is provided at either end of the train rake to supply power. A WAP-5 locomotive (no. 30140) with Head-on Generation (HOG) was rolled by CLW in June 2018. In this locomotive, the hotel load converter has been accommodated in the same cubicle of traction converter. More locomotives of this type will be rolled out in future.

Power upgrade to 6000 HP

In March 2018, CLW rolled out a WAP-5 locomotive (no. 30136) with an enhanced power output of about . Modifications were carried out in the control software. Based on successful trials, the Indian Railways decided to proliferate the modification on all WAP-5 locomotives.

Tejas Express push-pull version

Two WAP-5 locomotives (no. 35012 and 35013) were given an asymmetric body design with an aerodynamic profile for one cab and a blunt profile for another cab at the opposite end, which is intended to be semi-permanently coupled with a train in normal operation (a similar design was previously used on the British Rail Class 91 locomotives). One locomotive will be placed on each end of the train to utilize a push-pull configuration for future Tejas Express services. The two locomotives have a power output of and will have a maximum speed of . These locomotives were inaugurated in October 2020.

Liveries

* The most common livery for WAP-5 locomotives is white, black and a twin red band. * In 2014, Amul Milk made a contract with Vadodara Shed to apply wrap advertising on 20 Vadodara-based WAP-5 locomotives. * WAP-5 locomotives based at

Electric Loco Shed, Ghaziabad Electric Loco Shed, Ghaziabad is a motive power depot performing locomotive maintenance and repair facility for electric locomotives of the Indian Railways, located at of the Northern Railway zone in Uttar Pradesh, India. It is one of the two ...

have large P-5 decals on the sides. * Another wrap advertising for Fortune Edible Oils was released by Vadodara (BRC) Electric Loco Shed with locomotive no. 30081. * The Tejas WAP-5 with the same livery as the Tejas Express.

Gallery

File:Sapt_Kranti_Express,_Locomotive_change_from_WDP_4D_to_Ghaziabad_WAP_5.jpg, GZB WAP 5 with Sampark Kranti Express File:Ghaziabad WAP 5.jpg,

Ghaziabad Ghaziabad () is a city in the Indian state of Uttar Pradesh and a part of Delhi NCR. It is the administrative headquarters of Ghaziabad district and is the largest city in western Uttar Pradesh, with a population of 1,729,000. Ghaziabad Mu ...

based

WAP 5 The Indian locomotive class WAP-5 is the name of a class of "High Speed" electric locomotives produced and used by Indian Railways. The first 10 locomotives were imported from ABB in Switzerland in 1995. They are supposed to be a variant of the ...

getting ready to haul the Garib Rath Express File:Amul WAP 5.jpg, BRC based Amul advertised WAP-5 locomotive File:BHOPAL SHATABDI arriving HABIBGANJ with GZB WAP-5.jpg, Habibganj - New Delhi Shatabdi Express arriving Habibganj with GZB WAP-5 File:WAP-5 at Bhopal.jpg, GZB WAP-5 resting at Pitline File:Bhopal_Shahtbdi.jpg, A WAP-5 hauling the Bhopal Shatabdi Express File:Ghaziabad-based WAP-5 locomotive at Anand Vihar Terminal with the Anand Vihar-Bhagalpur Garib Rath Special train.jpg, A Ghaziabad-based WAP-5 at Anand Vihar Terminal

Technical specifications

Specifications are as follows:

Performance

WAP-5 (5440 HP) has the following capacity for ICF coaches in tonnes: Average weight of an ICF coach is 55 tonnes.

References

External links

India railway fan club
{{Broad gauge locomotives of India , state=collapsed Electric locomotives of India 25 kV AC locomotives Bo-Bo locomotives Railway locomotives introduced in 1995 5 ft 6 in gauge locomotives