Indian locomotive class WDG-4

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WDG-4
GT46MAC-WDG4.jpg
WDG4: 12029 in January 2011
hideType and origin
Power typeDiesel-electric
BuilderEMD
BLW
ModelGT46MAC (1997-2007)
GT46ACe (2007-2017)
Build date(EMD) 1997–1998
(DLW) 2002–2017
Total producedWDG-4: 1188
WDG-4D: 583 Under License (Production Stops)
hideSpecifications
Configuration:
​
 • AARC-C
 • UICCo-Co, Co'Co'
Gauge5 ft 6 in (1,676 mm)
TrucksHTSC
Length21.26 m (69 ft 9 in)
Height4.11 m (13 ft 6 in)
Axle load21,000 kg (46,000 lb)
Loco weight126,000 kg (278,000 lb)
or 126 t (124 long tons; 139 short tons)
Fuel typeDiesel fuel
Fuel capacity6,100 Litres
Prime mover16-710G3B
Engine typetwo-stroke V16 diesel
Aspirationturbocharged
Displacement186.2 liters (11,360 cubic inches)
AlternatorTA-17-CA6A AC
Traction motors1 inverter per truck, AC traction motors
Cylinders16
Transmissiondiesel electric
Loco brakeAir
Train brakesGraduated Release Twin Pipe Air Brake, Dynamic Brakes, Blended
hidePerformance figures
Maximum speed105 km/h (65 mph)
Power output4,000 hp (2,980 kW) / 4,500 hp (3,360 kW)
Tractive effort540 kN (120,000 lbf)
hideCareer
OperatorsIndian Railways, Sri Lanka Railways (as locomotive class M-11)
NumbersWDG-4 :- 12001 - 12999 & 70001 - 70190
WDG-4D :- 70301 - 70882 & 12681

The Indian locomotive class WDG-4 (EMD GT46MAC) is a freight-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Diesel[1] in 1997–1998 for Indian Railways, where they are classed as WDG-4. Thirteen were built by EMD as order #958647, and a further eight were exported in kit form and assembled in India. The class entered service in 1999.

Further construction has been under license in India by the Banaras Locomotive Works (BLW); more than 60 additional locomotives have been built as of 2006. They are numbered from #12001 upward. A similar type, the EMD GT46PAC, has also been produced for passenger service in India.

As of 2007, EMD and DLW have begun building GT46Ace's using IGBT technology to replace the older gate turn-off thyristor technology. Newer editions with 4,500 hp (3,400 kW) have been produced. Over 1,000 WDG-4 locomotives are currently in operation.

Locomotive sheds[]

Zone Name Shed Code Quantity
Central Railway Pune PA 90
Kalyan KYN 23
Eastern Railway Andal UDL 46
Jamalpur JMP 16
East Central Railway Patratu PTRU 89
East Coast Railway Visakhapatnam VSKP 121
Northern Railway Tughlakabad TKD 16
Ludhiana LDH 17
Lucknow LKO 35
North Central Railway Jhansi JHS 18
North Eastern Railway Izzatnagar IZN 38
Northeast Frontier Railway New Guwahati NGC 50
Siliguri SGUJ 132
North Western Railway Bhagat Ki Kothi BGKT 102
Abu Road ABR 64
Southern Railway Golden Rock GOC 31
South Central Railway Kazipet KZJ 135
Gooty GY 113
South Eastern Railway Bondamunda BNDM 91
South East Central Railway Raipur R 118
South Western Railway Krishnarajapuram KJM 31
Hubli UBL 191
Western Railway Sabarmati SBT 148
West Central Railway Itarsi ET 53
Total Locomotives Active as of 01-07-2021[2] 1749

See also[]

References[]

  1. ^ "GM EMD: GT46MAC". Archived from the original on 2004-03-03. Retrieved 2006-11-19.
  2. ^ "Railway Website Mechanical Department". Retrieved 16 May 2020.

External links[]

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