India's
Powerful Locomotive WAG-9 having capacity of hauling 6000 tonne at 120
km/hr.It is referred to as the Heavy Haul freight locomotive of the
Indian Railways.
It is very similar to WAP-7,the only difference being the gear ratio (WAP -7 :- 72:20 ,WAG-9 77:15) which makes it suitable for heavy freight operations.
Around 400 of these locomotives have been put to service as of early 2013.They have GTO thyristor converters and 3-phase asynchronous motors.
Newer versions of WAG-9 feature full IGBT traction control.
They have better adhesion because of the computerized slip control which in turn increase their hauling capacity and initial starting torque of about 520KN.
They have Traction motors rated at 6,350 hp (4,735 kW) each,Continuous power at wheel rims 4500kW (6000hp).
Two units can haul 4500t on gradients of 1:60 and a single unit can start a 4700t load (58 BOXN wagons Max. axle load of 20.32t) on a gradient of 1:180.
Total weight of WAG-9 is 123t.
Starting Tractive Effort(TE) 520kN.
Continuous Tractive Effort(TE) 325kN.
Rated top speed is 120km/h (75 miles/hr) for 6000 tonne load (Operational).
Technical Specifications Of WAG-9 :-
Manufacturers: ABB, CLW
Power Supply: 25kV AC Supply
Traction Motors: ABB's 6FRA 6068 (850kW, 2180V, 1283/2484 rpm, 270/310A. Weight 2100kg) Axle-hung, nose-suspended.
Gear Ratio: 77:15 / 64:18
Transformer: ABB's 4x1450kVA.
Power Drive: Power convertor from ABB, SG 3000G X H24 GTO thyristors ,14 thyristors per unit (two units). Line convertor rated at 2 x 1269V @ 50Hz, with DC link voltage of 2800V. Motor/drive convertor rated at 2180V phase to phase, 971A output current per phase, motor frequency from 0 to 132Hz.
Hauling capacity: 4250t
Tractive Effort: 460kN
Bogies: Co-Co, ABB bogies; bogie wheel base 1850mm + 1850mm
Wheel base: 15700mm
Axle load: 20.5t
Unsprung mass per axle: 3.984t
Body width: 3152mmn
Cab length: 2434mm
Pantographs: Two Secheron ES10 1Q3-2500.
Pantograph locked down height: 4525mm.
It is very similar to WAP-7,the only difference being the gear ratio (WAP -7 :- 72:20 ,WAG-9 77:15) which makes it suitable for heavy freight operations.
Around 400 of these locomotives have been put to service as of early 2013.They have GTO thyristor converters and 3-phase asynchronous motors.
Newer versions of WAG-9 feature full IGBT traction control.
They have better adhesion because of the computerized slip control which in turn increase their hauling capacity and initial starting torque of about 520KN.
They have Traction motors rated at 6,350 hp (4,735 kW) each,Continuous power at wheel rims 4500kW (6000hp).
Two units can haul 4500t on gradients of 1:60 and a single unit can start a 4700t load (58 BOXN wagons Max. axle load of 20.32t) on a gradient of 1:180.
Total weight of WAG-9 is 123t.
Starting Tractive Effort(TE) 520kN.
Continuous Tractive Effort(TE) 325kN.
Rated top speed is 120km/h (75 miles/hr) for 6000 tonne load (Operational).
Technical Specifications Of WAG-9 :-
Manufacturers: ABB, CLW
Power Supply: 25kV AC Supply
Traction Motors: ABB's 6FRA 6068 (850kW, 2180V, 1283/2484 rpm, 270/310A. Weight 2100kg) Axle-hung, nose-suspended.
Gear Ratio: 77:15 / 64:18
Transformer: ABB's 4x1450kVA.
Power Drive: Power convertor from ABB, SG 3000G X H24 GTO thyristors ,14 thyristors per unit (two units). Line convertor rated at 2 x 1269V @ 50Hz, with DC link voltage of 2800V. Motor/drive convertor rated at 2180V phase to phase, 971A output current per phase, motor frequency from 0 to 132Hz.
Hauling capacity: 4250t
Tractive Effort: 460kN
Bogies: Co-Co, ABB bogies; bogie wheel base 1850mm + 1850mm
Wheel base: 15700mm
Axle load: 20.5t
Unsprung mass per axle: 3.984t
Body width: 3152mmn
Cab length: 2434mm
Pantographs: Two Secheron ES10 1Q3-2500.
Pantograph locked down height: 4525mm.
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