Indian locomotive class WAP-3

WAP-3
Type and origin
Power typeElectric
DesignerRDSO, Chittaranjan Locomotive Works
BuilderChittaranjan Locomotive Works
Order numberRDSOE-17
ModelWAP-1 FMII
Build date1987–1988
Total produced9 (all from previous WAP-1 units)
RebuilderChittaranjan Locomotive Works
Rebuild date1987–1988
Number rebuilt9
Specifications
Configuration:
 • AARC-C
 • UICCo′Co′
 • CommonwealthCo-Co
Gauge5 ft 6 in (1,676 mm)
BogiesFabricated bogie assembly (Flexicoil Mark II and later Mark IV)
Wheel diameterNew: 1,092 mm (3 ft 7 in)
Half worn: 1,055 mm (3 ft 5+12 in)
Full worn: 1,016 mm (3 ft 4 in)
Wheelbase1,735 mm (5 ft 8 in)
Length:
 • Over beams18.794 m (61 ft 7+2932 in)
 • Over body17.500 m (57 ft 4+3132 in)
Width3.179 m (10 ft 5+532 in)
Height4.272 m (14 ft 316 in)
Frame typeFlexicoil (cast steel bogies); primary and secondary wheel springs with bolsters
Axle load18,800 kg (41,400 lb)
Loco weight112,000 kg (247,000 lb)
Sandbox cap.8 Sandboxes
Power supply110v DC
Electric system/s25 kV 50 Hz AC Overhead
Current pickup(s)Pantograph
Traction motorsAlstom TAO 659
Loco brakeAir
Train brakesAir, Dual
Safety systemsSlip control, Over voltage relay, Main overload relay, Earth Fault Relay, Low Pressure Governor, Brake Cylinder Cutoff Valve, Train parting alarms and No OHE volt relay
Performance figures
Maximum speed130 km/h (81 mph)
Power output:
 • Starting3,900 hp (2,900 kW)
 • Continuous3,760 hp (2,804 kW)
Tractive effort:
 • Starting22,400 kgf (220 kN)
 • 1 hour22,400 kgf (220 kN)
Career
OperatorsIndian Railways
ClassWAP-3
Numbers22003, 22005-22009 and 22034, 22051, 220052
NicknamesJawahar
LocaleAll over India
Delivered1987
First run1988
WithdrawnFebruary 2017
Preserved1 (as Loco pilot trainer)
DispositionAll reverted to WAP-1 and in service.

The Indian locomotive class WAP-3 was a class of 25 kV AC electric locomotives that was designed by Research Design and Standards Organisation (RDSO) and Chittaranjan Locomotive Works (CLW) for Indian Railways in 1987. The model name stands for Broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 3rd generation (3). They entered service in 1988. They were the faster variant of the previous WAP-1 class. A total of 9 WAP-3 were converted from existing WAP-1 units at CLW between 1987 and 1988, but were later reverted back to WAP-1 specifications.