Indian locomotive class WAP-5

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A WAP5 locomotive
A WAP5 locomotive

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. 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. 78t 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 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
  • Unsprung mass per axle: 2.69t
Pantographs Two Stone India (Calcutta) AN-12.
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

  1. ^ Indian railway fan club.

[edit] See also

[edit] External links


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