EMD GT46PAC
Encyclopedia
The EMD GT46PAC is a passenger-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Division and built by both GM-EMD and under license by Diesel Locomotive Works
Diesel Locomotive Works
The Diesel Locomotive Works in Varanasi, India, is a production unit owned by Indian Railways, for which it manufactures diesel-electric locomotives and spare parts.-Company:...

 (DLW) of Varanasi
Varanasi
-Etymology:The name Varanasi has its origin possibly from the names of the two rivers Varuna and Assi, for the old city lies in the north shores of the Ganga bounded by its two tributaries, the Varuna and the Asi, with the Ganges being to its south...

, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 for 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....

 as their classes WDP-4, WDP-4B and WDP-4D. The GT46PAC is a passenger version of the previous Indian Railways EMD GT46MAC
EMD GT46MAC
The EMD GT46MAC is a freight-hauling diesel-electric locomotive with AC electric transmission built by General Motors Electro-Motive Divisionin 1997–1998 for Indian Railways, where they are classed as WDG-4....

 freight locomotive. The locomotive has a 16 cylinder 710G3B diesel engine with a maximum speed of 904 RPM.

Variants

There are three variants of this loco - the original WDP-4 which is a 4000 hp loco, the WDP-4B which is a 4500 hp loco with a single cab and the newest WDP-4D which is a 4500 hp loco with dual cabs.

Numbering

The locomotives are numbered from Road No. 20000 upwards till 20103 and further numbering of the loco along with its WDP-4B variant has started from the 40XXX series. This is due to the numbering of the 20XXX series almost breaching the start of numbering of another locomotive class, the WCG-2 which is a DC electric locomotive whose numbering started from 20105.

Performance

The WDP-4 is capable of hauling 24 coach trains at 110-120 km/hour. It has also been used for speed trials where it has hauled 8 coach trains at 160 km/hour.

The locomotives can be used in either direction, and frequently haul trains long hood
Long hood
The long hood of a hood unit-style diesel locomotive is, as the name implies, the longer of the two hoods on a locomotive.-Equipment:...

 forward, as in the picture. Newer editions with 4500hp have been produced which have been named with the sub class WDP-4B /WDP-4D which have different traction control with six traction motors and are Co-Co bogie equipped, unlike the original which has a Bo-1-1-Bo arrangement with four traction motors.

The loco is very fuel efficient and has minimal exhaust emissions due to its 2 stroke diesel engine. It is characterized by its loud horn, which can be heard for large distances around, and aircraft-like sound of its running engine.

Builders

The first set of 10 locos starting from road number 20000–20009 were manufactured by the Electro Motive Division (EMD) of (General Motors) while road numbers 20011 upwards have been manufactured by Diesel Locomotive Works
Diesel Locomotive Works
The Diesel Locomotive Works in Varanasi, India, is a production unit owned by Indian Railways, for which it manufactures diesel-electric locomotives and spare parts.-Company:...

 (DLW) of Varanasi
Varanasi
-Etymology:The name Varanasi has its origin possibly from the names of the two rivers Varuna and Assi, for the old city lies in the north shores of the Ganga bounded by its two tributaries, the Varuna and the Asi, with the Ganges being to its south...

 in collaboration with EMD and GM (General motors). Siemens
Siemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...

 too are part of this group providing a large component of the electronics on board this loco.

Features

A particular loco with road number 20012 had a different light blue livery
Livery
A livery is a uniform, insignia or symbol adorning, in a non-military context, a person, an object or a vehicle that denotes a relationship between the wearer of the livery and an individual or corporate body. Often, elements of the heraldry relating to the individual or corporate body feature in...

 with a fiberglass
Fiberglass
Glass fiber is a material consisting of numerous extremely fine fibers of glass.Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the invention of finer machine tooling...

 shell and has been named "Baaz" which stands for Bird of prey
Bird of prey
Birds of prey are birds that hunt for food primarily on the wing, using their keen senses, especially vision. They are defined as birds that primarily hunt vertebrates, including other birds. Their talons and beaks tend to be relatively large, powerful and adapted for tearing and/or piercing flesh....

 in Hindi
Hindi
Standard Hindi, or more precisely Modern Standard Hindi, also known as Manak Hindi , High Hindi, Nagari Hindi, and Literary Hindi, is a standardized and sanskritized register of the Hindustani language derived from the Khariboli dialect of Delhi...

. This loco has however has been repainted to a dark blue livery and the cabin has been rebuilt to the ones found on rest of the series by its new home shed, Siliguri. Some of the earlier locomotives were fitted with air conditioning
Air conditioning
An air conditioner is a home appliance, system, or mechanism designed to dehumidify and extract heat from an area. The cooling is done using a simple refrigeration cycle...

 units which were subsequently removed.

Use

The locomotive is used on the following zones of Indian Railways:
  • South Western Railway
    South Western Railway
    The South Western Railway is one of the 16 railway zones in India. It is headquartered at Hubli and comprises Bangalore, Mysore divisions of the erstwhile Southern Railway and the reorganized Hubli division of the erstwhile South Central Railway which includes Hospet and Bellary. The division...

  • Central Railway
  • South Central Railway
    South Central Railway
    The South Central Railway is one of the 16 railway zones in India. It is headquartered at Secunderabad and has the following divisions:# Secunderabad# Hyderabad# Guntakal # Vijayawada# Guntur# Nanded...

  • Northern Railway
  • North Western Railway
    North Western Railway
    The North Western Railway is one of the sixteen railway zones in India. It is headquartered at Jaipur. It comprises four divisions: Jodhpur and reorganized Bikaner division of the erstwhile Northern Railway and reorganized Jaipur and Ajmer divisions of the erstwhile Western Railway. This zone...

  • Northeast Frontier Railway
    Northeast Frontier Railway
    The Northeast Frontier Railway abbreviated as N F Railway is one of the 16 railway zones in India. Headquartered in Maligaon, Guwahati in the state of Assam it is responsible for rail operations in the entire Northeast and parts of West Bengal and Bihar...

  • Konkan Railway
    Konkan Railway
    The Konkan Railway is a railway line which runs along the Konkan coast of India. It was constructed and is operated by the Konkan Railway Corporation...

     (WDP4's of KJM shed are used in this zone)
  • West Central Railway
  • East Central Railway


Notable trains hauled by this locomotive include:
  • Amarkantak Express
    Amarkantak Express
    The Amarkantak Express is a daily superfast express train which runs between Bhopal Junction railway station of Bhopal, the capital city of Madhya Pradesh and Durg, a small town in Chhattisgarh. The train has replaced the old 8225/8226 Bhopal - Bilaspur Mahanadi Express along with 8291/8292 Bhopal...

  • Marusagar Express
  • Habibganj-Jabalpur Intercity
    Bhopal – Jabalpur Intercity Express
    The Bhopal – Jabalpur Intercity Express is a daily Intercity express train which runs between Bhopal Habibganj railway station in Bhopal City, the capital of Madhya Pradesh and Jabalpur Junction railway station of Jabalpur in Eastern Madhya Pradesh...

  • Brahmaputra Mail
    Brahmaputra Mail
    The Brahmaputra Mail is a daily train which connects Delhi with Dibrugarh . Originally this train ran between Old Delhi railway station and Guwahati and was named as Assam Mail and also Tinsukia Mail...

  • Darjeeling Mail
    Darjeeling Mail
    Darjeeling Mail is a daily train running between Sealdah in Kolkata and New Jalpaiguri in West Bengal. This is an overnight train running within West Bengal. Numbered 2343/2344 this train belongs to superfast category of Indian Railways covering 567 km in 10 hours averaging at...

  • Falaknuma Express
    Falaknuma Express
    2703/2704 Falaknuma Express is a superfast train of The Indian Railways connecting Howrah to Secunderabad. The train belongs to the South Central Railway. It runs daily and connects important stations such as Bhubaneswar, Vishakhapatnam, Vijayawada and Guntur. It is a fast alternative to other...

  • Guwahati Rajdhani Express
    Guwahati Rajdhani Express
    Guwahati Rajdhani Express is one of the premier train in the exclusive fleet of Rajdhani Expresses of Indian Railways. Currently there are three set of Rajdhani Express which connects New Delhi with Guwahati ..-Trains:The three...

  • Hampi Express
    Hampi Express
    The Hampi Express is a daily express train running between Bangalore city Junction and Hubli Junction the headquarters of the South Western Railway in India...

  • Konkan Kanya Express
    Konkan Kanya Express
    The Konkan Kanya Express is an Indian Railways train running between Mumbai and Madgaon on the Konkan Railway route. The train covers the 765 km journey in about 13.5 hours. It is an important train link serving people along the coastal areas of Maharastra and Goa.-Konkan Kanya Express :-External...

  • Karnataka Sampark Kranti Express
    Karnataka Sampark Kranti Express
    Sampark Kranti express of Karnataka runs between Yeswanthapur near Bangalore to Hazrath Nizzmuddin near Delhi. It provides a good substitute to the Karnataka Express and also of superfast category.-Routes:Karnataka Sampark Kranti Express has 2 routes:...

  • Kaveri Express
    Kaveri Express
    Kaveri Express is a daily train running between Mysore and Chennai.This train is also called Mysore-Chennai Express. Numbered 16221/22 this train belongs to South Western zone and is maintained at Mysore.-Relevance:...

  • Nellai Express
    Nellai Express
    The Nellai Express is a super fast train on the Indian Railways, connecting Tirunelveli Jn with Chennai Egmore.-Numbers and Route:* 119/120* 6119/6120* 2631/2632* 12631/12632...

  • Narayanadri Express
    Narayanadri Express
    The Narayanadri Express, No. 12733/12734, is a superfast train of Indian Railways, connecting Secundrabad to Tirupati. The train belongs to the South Central Railway. It runs daily, via Guntur....

  • North East Express
    North East Express
    The North East Express is a daily superfast train of Indian Railways, which runs between Guwahati and New Delhi . It connects North Eastern India to New Delhi, hence the name. The train belongs to NF railway zone of Indian Railways...

  • Pandian Express
    Pandian Express
    The Pandian Express is a train route of the Southern Railway zone of the Indian Railways and runs between Chennai Egmore and Madurai Junction via Tiruchirapalli. The name of the train commemorates the 10th-13th century Pandian Kingdom of Tamil Nadu. It is a standard train consisting of 24 coaches...

  • Purvottar Sampark Kranti Express
  • Rani Chennamma Express
    Rani Chennamma Express
    The Rani Chennamma Express is a daily train connecting the City of Bangalore with the Maharashtra city of Kolhapur. This is one of the prestigious trains of the South Western Railway and generally gets the best coaches and locomotives that the infrastructure can support...

  • Tippu Express
    Tippu express
    The Tippu Express is a superfast train running between Bangalore and Mysore in India. It covers a distance of 139 km in 2.5 hours with just a stop at Mandya...

  • Udyan Express
    Udyan Express
    Udyan Express is one of the three trains connecting Mumbai, the financial capital of India to the Silicon Valley of India, Bengaluru. It is one of the important trains operated by the South Western Railway which operates on a daily basis. It generally gets the best locomotives that the...

  • Bangalore–Bhubaneswar Prasanthi Express (Between Bangalore and Guntur)
  • Bangalore–Hubli janshatabdi
  • Bangalore–Kachiguda Superfast Express
  • Bangalore–Mysore Rajya Rani Express
    Rajya Rani Express
    Rajya Rani trains are a series of express trains operated by Indian Railways to connect state capitals with other cities important for tourism, pilgrimage or business.-History:...

  • Chennai–Mysore Shatabdi (Between Bangalore and Mysore)
  • Himgiri Express
  • Koyna Express
  • Mysore–Ajmer Express
  • Siddhaganga Intercity Express (Bangalore–Dharwad)
  • Yeshwantpur–Ajmer Garib Nawaz Express
  • Yeshwantpur–kacheguda Express
  • Yeshwantpur–Solapur/Bijapur Golgumbaz Express
  • Jabalpur-Somnath Express/Somnath-Jabalpur Express(btwn Jabalpur and Itarsi)
  • Jabalpur Habibganj Janshatabdi Express(btwn Jabalpur and Itarsi)
  • Indore-Bilaspur Narmada Express(btwn Katni to Itarsi)
  • Barauni Jn-New Delhi Vaishali Express (between Barauni and Lucknow)
  • Sapt Kranti Express (Muzaffarpur-Anandvihar)
  • Shramjeevi Express( Patna-New Delhi)

Sheds

This locomotive is currently homed at seven sheds in the 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....

, spread across the country which are Golden Rock (code:GOC) in the Southern Railway Zone
Southern Railway Zone (India)
The Southern Railway is the earliest of the 16 zones of the Indian Railways created in independent India. It was created on April 14, 1951 by merging three state railways namely Madras and Southern Mahratta Railway, the South Indian Railway, and the Mysore State Railway. The South Indian Railway...

, Hubli (Code:UBL) and Krishnarajapuram (Code:KJM) in the South Western Railway zone, Siliguri
Siliguri
Siliguri is a city in the Indian state of West Bengal. It is located in the Siliguri Corridor or Chicken's Neck - a very narrow strip of land linking mainland India to its north-eastern states. It is also the transit point for air, road and rail traffic to the neighbouring countries of Nepal,...

 (Code:SGUJ) in the Northeast Frontier Railway
Northeast Frontier Railway Zone (India)
The Northeast Frontier Railway abbreviated as N F Railway is one of the 16 railway zones in India. Headquartered in Maligaon, Guwahati in the state of Assam it is responsible for rail operations in the entire Northeast and parts of West Bengal and Bihar...

 zone, Bhagat ki Kothi (Code:BGKT) in the North Western Railway zone, Itarsi Junction (Code:ET) in the West Central Railway and Tughlakabad (Code:TKD) of the Northern Railway.

Golden Rock
The Golden Rock homes WDP-4B 40063 and 40064

Hubli
The Hubli is the parent shed of all the EMD sheds in India and currently homes locos with following road numbers
  • WDP-4: 20005–20009, 20020, 20026, 20035 and 20065.
  • WDP-4B: 40007–40009, 40036, 40046 and 40054–40057


Krishnarajapuram
The Krishnarajapuram diesel locomotive shed currently homes these locos with the following road numbers
  • WDP-4: 20019, 20021–20025, 20027–20034, 20036–20046, 20053–20060, 20062, 20067 and 20068
  • WDP-4B: 40010, 40015–40018, 40065 and 40066.


Siliguri
Siliguri
Siliguri
Siliguri is a city in the Indian state of West Bengal. It is located in the Siliguri Corridor or Chicken's Neck - a very narrow strip of land linking mainland India to its north-eastern states. It is also the transit point for air, road and rail traffic to the neighbouring countries of Nepal,...

 homes the following:
  • WDP-4: 20000–20004, 20011–20018, 20048–20052, 20061, 20063–20064, 20066, 20069–20074
  • WDP-4B: 20047, 20075, 20103, 40022–40025, 40028, 40029, 40032, 40035,


Bhagat ki Kothi
Bhagat ki Kothi homes
  • WDP-4: 20085–20099, 20080, 20077, 20078 which are nicknamed 'Aravali' (named after the mountain ranges).
  • WDP-4B: 40027, 40030, 40031, 40033, 40034, 40038–40040, 40043, 40044, 40060


Tughlakabad
The Tughlakabad Diesel Shed (Code: TKD) homes
  • WDP-4B: 40001, 40003–40006, 40011–40013, 40019–40021, 40049–40051, 40058, 40059


Itarsi
Itarsi (Code: ET) shed homes:
  • WDP-4B: 40041, 40041, 40042, 40047, 40048 and 40052, 40053, 40061, 40062.

Others
In the near future, most Diesel Locomotive
Diesel locomotive
A diesel locomotive is a type of railroad locomotive in which the prime mover is a diesel engine, a reciprocating engine operating on the Diesel cycle as invented by Dr. Rudolf Diesel...

 sheds of the 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....

 are expected to home the WDP-4B and WDP-4D class locos. Kalyan shed of Central Railway Zone and Mughalsarai shed of East Central Railway Zone are being equipped to home these locos.

Criticism

The use of the locomotives "long hood forward" has been criticised because the driver might have difficulty in seeing signals. This criticism has been rejected by Indian Railways.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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