Indian locomotive class WAP-5
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WAP 5 is the name of a class of electric locomotive used by Indian Railways. The first 10 locos were imported from ABB (now Bombardier Transportation) in Switzerland in 1995. They are supposed to be a varient of Lok 2000. Chittaranjan Locomotive Works (CLW) started production in 2000. It was designed to haul 26 coach passenger trains at 160 km/h. It is the first 3-phase loco in India. Other notable features of this loco are the provision of taps from the main loco transformers for hotel load, pantry loads, flexible gear coupling, wheel-mounted disc brakes, and a potential for speed enhancement to 200 km/h. 88 tonnes weight. Braking systems include regenerative braking (160kN), loco disc brakes, automatic train air brakes, and a charged spring parking brake. MU operation possible with a maximum of two locos.
The WAP-5 series of locomotives haul the premier superfast trains on Indian Railways like the Mumbai Rajdhani Express, Bhopal Shatabdi Express, Lucknow Shatabdi Express, Prayagraj Express, etc. The Bhopal Shatabdi hauled by a WAP-5 travels at 150 km/h in the New Delhi - Agra Cantt section.
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[edit] Technical specification
Specifications are as follows:[1]
Manufacturers | ABB / CLW |
Capacity | 4 MW (4000 kW, 5450 hp) |
Traction Motors | ABB's 6FXA 7059 3-phase squirrel cage induction motors (1150kW, 2180V, 370/450A, *1583/3147 rpm) Weight 2050 kg. Forced-air ventilation, fully suspended. Torque 6930/10000 Nm. 96% *efficiency. |
Gear Ratio | 67:35:17. (3-stage gears) |
Transformer | ABB's LOT-7500. 7475kVA primary, 4x1450kVA secondary. |
Power Drive | Power converter from ABB, type UW-2423-2810 with SG 3000G X H24 GTO thyristors (D *921S45 T diodes), 14 thyristors per unit (two units). Line converter rated at 2 x 1269 V @ 50 Hz, *with DC link voltage of 2180 V. Drive converter rated at 2180 V phase to phase, 953 A output current *per phase, motor frequency from 0 to 160 Hz. |
Axle load | 19.5 t |
Bogies | Bo-Bo Henschel Flexifloat; bogie centre distance 10200 mm; bogie wheel base 2800 mm
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Pantographs | Two Stone India (Calcutta) AM-92 (indigenous production), Schunk for the imported locomotives. |
Wheel diameter | 1092 mm new, 1016 mm worn |
Wheel base | 13000 mm |
Length over buffers | 18162 mm |
Length over headstocks | 19280 mm |
Body width | 3142 mm |
Cab length | 2434 mm |
Pantograph locked down height | 5437 mm |
[edit] References
[edit] See also
- Indian Railways
- Indian Locomotives
- Indian Locomotive Class WDM-2
- Indian locomotive class WAP-4
- Indian locomotive class WAP-7
- Indian locomotive class WAG-9