Indian locomotive class WAP-7

Specifications
Specifications
Gauge	5 ft 6 in (1,676 mm)
Bogies	Co-Co, Fabricated Flexicoil Mark IV bogies; bogie wheelbase 1,850 mm (72+7⁄8 in) + 1,850 mm (72+7⁄8 in)
Wheel diameter	1,092 mm (43 in) new, 1,016 mm (40 in) worn
Wheelbase	15,700 mm (51 ft 6+1⁄8 in)
Length:;
• Over beams	20,562 mm (67 ft 5+1⁄2 in)
Width	3,152 mm (10 ft 4+1⁄8 in)
Height:;
• Pantograph	4,255 mm (13 ft 11+1⁄2 in)
Axle load	WAP 7; 20.5 t (20.2 long tons; 22.6 short tons) WAP 7HS 18.08 t (17.79 long tons; 19.93 short tons)
Loco weight	123 t (121 long tons; 136 short tons)
Power supply	3-phase 2180 V 50 Hz
Electric system/s	25 kV 50 Hz AC Overhead
Current pickup(s)	Pantograph
Traction motors	6FRA 6068 3-phase squirrel-cage induction motors; 850 kW (1,140 hp), 2180 V, 1283/2484 rpm, 270/310A;; Weight-2,100 kg (4,600 lb), forced-air ventilation, axle-hung, nose-suspended;; Torque 6,330–7,140 N⋅m (4,670–5,270 lbf⋅ft); ~88% efficiency.
Transmission	Electric
Gear ratio	WAP 7 ; 72:20 ; WAP 7HS ; 70:22
Loco brake	Air and regenerative
Train brakes	Air

Type and origin
Type and origin
Power type	Electric
Builder	Chittaranjan Locomotive Works,; Banaras Locomotive Works,; Patiala Locomotive Works
Build date	1999 - present
Total produced	1635 as of April 2024

WAP-7
WAP-7
	CLW made WAP-7 at CLW yard.
Power type
Type and origin
Power type	Electric
Builder	Chittaranjan Locomotive Works,; Banaras Locomotive Works,; Patiala Locomotive Works
Build date	1999 - present
Total produced	1635 as of April 2024
Gauge
Specifications
Gauge	5 ft 6 in (1,676 mm)
Bogies	Co-Co, Fabricated Flexicoil Mark IV bogies; bogie wheelbase 1,850 mm (72+7⁄8 in) + 1,850 mm (72+7⁄8 in)
Wheel diameter	1,092 mm (43 in) new, 1,016 mm (40 in) worn
Wheelbase	15,700 mm (51 ft 6+1⁄8 in)
Length:;
• Over beams	20,562 mm (67 ft 5+1⁄2 in)
Width	3,152 mm (10 ft 4+1⁄8 in)
Height:;
• Pantograph	4,255 mm (13 ft 11+1⁄2 in)
Axle load	WAP 7; 20.5 t (20.2 long tons; 22.6 short tons) WAP 7HS 18.08 t (17.79 long tons; 19.93 short tons)
Loco weight	123 t (121 long tons; 136 short tons)
Power supply	3-phase 2180 V 50 Hz
Electric system/s	25 kV 50 Hz AC Overhead
Current pickup(s)	Pantograph
Traction motors	6FRA 6068 3-phase squirrel-cage induction motors; 850 kW (1,140 hp), 2180 V, 1283/2484 rpm, 270/310A;; Weight-2,100 kg (4,600 lb), forced-air ventilation, axle-hung, nose-suspended;; Torque 6,330–7,140 N⋅m (4,670–5,270 lbf⋅ft); ~88% efficiency.
Transmission	Electric
Gear ratio	WAP 7 ; 72:20 ; WAP 7HS ; 70:22
Loco brake	Air and regenerative
Train brakes	Air
Maximum speed
Performance figures
Maximum speed	140 km/h (87 mph) (WAP-7); 160 km/h (99 mph) (WAP-7HS) ; Potential speed: 180 km/h (110 mph) (WAP-7HS) 155 km/h (96 mph) (WAP-7);
Power output	Max Power : 6,350 hp (4,740 kW) ; Continuous: 6,120 hp (4,563.68 kW)
Tractive effort	Starting : 322.4 kN (72,500 lbf) ; Continuous : 228 kN (51,000 lbf) at 71 km/h
Operators
Career
Operators	Indian Railways
Numbers	30201+ CLW 37001+ BLW 39000+ PLW
Locale	All over India
First run	19 May 2000

The Indian locomotive class WAP-7 is a class of 25 kV AC electric locomotives that was developed in 1999 by Chittaranjan Locomotive Works (CLW) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 7th generation (7). They entered service in 2000. A total of 1609 WAP-7 have been built, with more units being built at CLW, Banaras Locomotive Works (BLW) and Patiala Locomotive Works (PLW).

The WAP-7 is the most successful locomotives of Indian Railways serving passenger trains for over 23 years. It is a passenger variant of the WAG-9 freight locomotive with a modified gear ratio to pull lighter loads at higher speeds. With an output of 6125HP, it is the most powerful passenger locomotive in the Indian Railways fleet, and the most numerous passenger locomotive in India. The WAP-7 is capable of hauling 24 coach trains at speeds 110–140 km/h (68–87 mph).

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.