Indian locomotive class WAP-6

Specifications
Specifications
Configuration:;
• UIC	Co'-Co'
Gauge	1,676 mm (5 ft 6 in)
Bogies	originally Flexicoil Mark IV Fabricated;converted to Co'-Co' Flexicoil Mark 1 cast bogies; primary and secondary wheel springs with bolsters
Wheel diameter	New: 1,092 mm (3 ft 7 in); Half worn: 1,055 mm (3 ft 5+1⁄2 in); Full worn: 1,016 mm (3 ft 4 in)
Length	18.79 m (61 ft 7+3⁄4 in)
Height	4.235 m (13 ft 10+3⁄4 in)
Axle load	18,800 kg (41,400 lb)
Loco weight	113,200 kg (249,600 lb)
Electric system/s	25 kV 50 Hz AC, AC Overhead
Current pickup(s)	pantograph
Traction motors	Hitachi HS15250
Loco brake	Air/Hand
Train brakes	Air
Safety systems	Slip control, Over voltage relay and No volt relay

Type and origin
Type and origin
Power type	Electric
Builder	CLW
Build date	1995–1998
Total produced	17
Rebuild date	August, 2012
Number rebuilt	22401-22416

WAP-6
WAP-6
	A Former WAP-6 hauling Kaziranga Express
Power type
Type and origin
Power type	Electric
Builder	CLW
Build date	1995–1998
Total produced	17
Rebuild date	August, 2012
Number rebuilt	22401-22416
Configuration:;
Specifications
Configuration:;
• UIC	Co'-Co'
Gauge	1,676 mm (5 ft 6 in)
Bogies	originally Flexicoil Mark IV Fabricated;converted to Co'-Co' Flexicoil Mark 1 cast bogies; primary and secondary wheel springs with bolsters
Wheel diameter	New: 1,092 mm (3 ft 7 in); Half worn: 1,055 mm (3 ft 5+1⁄2 in); Full worn: 1,016 mm (3 ft 4 in)
Length	18.79 m (61 ft 7+3⁄4 in)
Height	4.235 m (13 ft 10+3⁄4 in)
Axle load	18,800 kg (41,400 lb)
Loco weight	113,200 kg (249,600 lb)
Electric system/s	25 kV 50 Hz AC, AC Overhead
Current pickup(s)	pantograph
Traction motors	Hitachi HS15250
Loco brake	Air/Hand
Train brakes	Air
Safety systems	Slip control, Over voltage relay and No volt relay
Maximum speed
Performance figures
Maximum speed	Intended at 140 km/h (87 mph); Restricted:105 km/h (65 mph)
Power output	Max: 5,350 hp (3,990 kW); Continuous: 5,000 hp (3,700 kW)
Tractive effort	Starting:30.8 t (30 long tons; 34 short tons) ; Continuous:19 t (19 long tons; 21 short tons)
Operators
Career
Operators	Indian Railways
Numbers	22400-22416
Locale	Eastern Railway
Withdrawn	August, 2012/In service as WAP-4
Disposition	One scrapped remainder rebuilt

The Indian locomotive class WAP-6 was a class of 25 kV AC electric locomotives that was developed in the mid-1990s by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 6th generation (6). They entered service in April 1996. A total of 17 WAP-6 units were built at CLW between 1995 and 1998.

The WAP-6 were intended to be the faster variant of the successful WAP-4, but failed trials and were restricted to a top speed of 105 km/h. Now all units have been converted to WAP-4 specifications. All were homed at Asansol (ASN) shed but after conversion reallocated to Howrah (HWH) shed.

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