Indian locomotive class WAP-5
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| Type and origin | |
|---|---|
| Power type | Electric |
| Builder |
Chittaranjan Locomotive Works, West Bengal, India ABB, Switzerland |
| Model | Lok 2000 |
| Build date | 1995 till present |
| Total produced | 127 as of June 2017 |
| Specifications | |
|---|---|
| Configuration: |
|
| • UIC | Bo'Bo' |
| Gauge | 5 ft 6 in (1,676 mm) |
| Bogies | Henschel Flexifloat |
| Wheel diameter | New: 1,092 mm (3 ft 7 in) Half-worn: 1,054 mm (3 ft 5 1⁄2 in) Full-worn: 1,016 mm (3 ft 4 in) |
| Wheelbase | 13,000 mm (42 ft 8 in) |
| Length | 18,162 mm (59 ft 7 in) |
| Width | 3,142 mm (10 ft 3 3⁄4 in) |
| Height | 4,237 mm (13 ft 11 in) |
| Axle load | 19.5 tonnes (19.2 long tons; 21.5 short tons) |
| Loco weight | 78 tonnes (77 long tons; 86 short tons) |
| Electric system(s) | 25 kV 50 Hz AC AC Overhead |
| Current source | pantograph |
| Traction motors | 4 ABB Group 6FXA 7059 |
| Gear ratio |
67:35:17 (160 km/h) 59:35:19 (200 km/h) |
| MU working | 2 |
| Loco brake | Air and Regenerative |
| Train brakes | Air |
| Safety systems | TPWS (Train Protection and Warning System), Vigilance Control, Slip/Slide Control, Main Overload Relay, No Volt Relay, Over Voltage Protection and Earth Fault Relay |
| Performance figures | |
|---|---|
| Maximum speed | Operational : 160 km/h (99 mph) Trials: 184 km/h (114 mph) Potential: 225 km/h (140 mph) |
| Power output | Max: 6,000 hp (4,474 kW) Continuous: 5,440 hp (4,057 kW) |
| Tractive effort | Max:258 kN (58,000 lbf) Continuous:220 kN (49,000 lbf) |
| Career | |
|---|---|
| Operators | Indian Railways |
| Numbers | 30000 onwards |
| Nicknames | Vijay Utkarsh, Nav Jagran, Nav Kirti, Gaurav and Navodit |
| Delivered | 1995-96 |
| First run | 1997 |
| Disposition | Active |
67:35:17 (160 km/h)
WAP 5 is the name of a class of High Speed electric locomotives produced and used by Indian Railways. The first 10 locomotives were imported from ABB in Switzerland in 1995. They are supposed to be a variant of the Swiss Lok 2000 (Design Concept) and German DB Class 120 (mechanical chassis).
WAP-5 can deliver 6,000 hp (4,500 kW) at peak and has regenerative braking as one of its notable features. Other notable features of this loco are the provision of taps from the main loco transformer for hotel load, pantry loads, flexible gear coupling, wheel-mounted disc brakes, and a potential for speed enhancement to 200 km/h (120 mph). Braking systems include 160 kN (36,000 lbf) regenerative brakes, loco disc brakes, automatic train air brakes, and a charged spring parking brake.
On 3rd July 2014, a WAP-5 set an Indian speed record by hauling a train from Delhi to Agra at within 90 minutes at a speed of 160 km/h (99 mph).
The Gatimaan Express and Bhopal Shatabdi trains hauled by WAP-5 locomotives travel at 160 km/h (99 mph) and 150 km/h (93 mph) respectively in the New Delhi - Agra Cantt section.
After the first four were built, there seemed to be a pause in the manufacture of this class at CLW. A problem with the Hurth coupling its indigenous replacement seemed to be part of the delay, but the locally manufactured components passed trials and production resumed.
However, the Hurth Couplings are being replaced by Alternate Drive Gear Assemblies in the newer locos. Hurth coupling has a rubber membrane where as Alternate Drive Gear system has combined curved tooth coupling/ring disc coupling, having no rubber membrane. First locomotive with alternate drive gear system for 160 km/h service speed (#30056) was dispatched to ELS/Vadodara in December 2012.
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Wikipedia