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EMD GT46MAC
WDG-4 numbered 12049 at Hi-Tec station |
| Power type |
Diesel-electric |
| Builder |
EMD & DLW |
| Build date |
(EMD) 1997–1998; (DLW) 2002—Present |
| Total production |
(EMD) 12 complete, 8 kit form; (DLW) 8 kit assembled, 60+ under license (still in production) |
| AAR wheel arr. |
C-C |
| Gauge |
5 ft 6 in (1.68 m) |
| Trucks |
HTSC |
| Length |
69 ft 9 in (21.3 m) |
| Height |
13 ft 6 in (4.12 m) |
| Axle load |
67,000 lbf |
| Locomotive weight |
277,800 lb (126 tonnes) |
| Fuel type |
diesel |
| Fuel capacity |
1,600 US gallons (6,000 liters) |
| Prime mover |
16-710G3B |
| Engine type |
2-stroke diesel |
| Aspiration |
turbocharged |
| Displacement |
11,360 in² (186.2 liters) |
| Alternator |
TA-17-CA6A |
| Traction motors |
AC |
| Cylinders |
V16 |
| Transmission |
electric; AC alternator, 1 inverter per truck, AC traction motors |
| Top speed |
65 mph (100 km/h) |
| Power output |
4,000 hp (3,000 kW) |
| Tractive effort |
121,400 lbf (540 kN) |
| Locomotive brakes |
air |
| Train brakes |
air |
The EMD GT46MAC is a freight-hauling diesel-electric locomotive with AC electric transmission built by General Motors Electro-Motive Division[1] in 1997–1998[2] for Indian Railways, where they are classed as WDG-4.[3] Thirteen were built by EMD as order #958647, and a further eight were exported in kit form and were assembled in India. The class entered service in 1999.[4] Further construction has been under license in India by the Diesel Locomotive Works (DLW); more than 60 additional locomotives have been built as of 2006.[3] They are numbered from #12000 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 GT46MACs using IGBT technology to replace the older Gate turn-off thyristor technology.
[edit] References
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Limited production and export locomotives built by GM-EMD |
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| Electrics |
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Industrial, military, export
and narrow gauge |
Model 40, DDM45, DHI, GMDH-1, GMDH-3, MRS-1, G8, GA8, GL8, G12, G16, G26, NF110, NF210, JT42CWR (Series 66), JT42HW-HS, GT46MAC, GT22HW, GT46PAC
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| Experimentals |
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