# Indian locomotive class WAP-5

The Indian locomotive class WAP-5 is a class of electric locomotives used by Indian Railways. The first ten locomotives were imported from ABB in Switzerland in 1995 and later manufactured by Chittaranjan Locomotive Works in India. On 3 July 2014, a WAP-5 set an Indian speed record by hauling a train between Delhi and Agra at a speed of 160 km/h (99 mph). The locomotive has regenerative braking, 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, disc brakes, automatic train air brakes and a charged spring parking brake.

## Locomotive sheds

Last updated:- March 2025
| Zone | Shed | Shed Code | Quantity | Introduction Year |
| Zone | Shed | Shed Code | Eastern Railway | Introduction Year | Howrah | HWHE | 40 | 2019 |
| Northern Railway | Ghaziabad | GZBE | 139 | 1997 |
| Western Railway | Vadodara | BRCE | 66 | 2011 |
| Southern Railway | Royapuram | RPME | 4 | 2025 |
| Total | Total | Total | 249 | |

## Variants

In October 2015, a WAP-5A locomotive (no. 30086) was rolled-out with a gear ratio of 59:35:19 capable of speeds up to 200 km/h (120 mph) for trial runs. In March 2018, a WAP-5 locomotive (no. 30136) with an enhanced power output of 4,500 kilowatts (6,000 hp) was released which was later adopted as a standard based on successful trials. Some locomotives of this class are equipped with "Head On Generation" (HOG) in which electric power from the locomotive's pantograph is transferred to the coaches instead of "End Of Generation" where a power car equipped with diesel generator is provided at either end of the train rake to supply power. The first WAP-5 locomotive (no. 30140) with HOG was rolled by CLW in June 2018.
In October 2020, two WAP-5 locomotives (no. 35012 and 35013) were given an asymmetric body design with an aerodynamic profile for one cab and a blunt profile for another cab at the opposite end, which is intended to be semi-permanently coupled with a train in a push-pull configuration for Tejas Express services. The two locomotives have a power output of 6,000 horsepower (4,500 kW) and will have a maximum speed of 160 kilometres per hour (99 mph). Two modified WAP-5 locomotives (35027 and 35028) are used to haul the Amrit Bharat Express in a similar push-pull configuration.

## Technical specifications

A 24 coach (1430 t) passenger rake can be accelerated to 110 km/h in 312.1 seconds (over 6 Km), to 120 km/h in 402sec (6.9km); and to 130km/h in 556 sec (14.2km) by a WAP5. Specifications are as follows:
Technical specifications :
| General Information ||
| Gauge | Broad gauge 1,676 mm (5 ft 6 in) |
| Line voltage | 25000 V |
| Type of current | Alternating Current (AC) |
| Axle load | 19.5 tonnes (19.2 long tons; 21.5 short tons) |
| AAR classification | Bo-Bo |
| Length over head-stocks | 16,880 mm (55 ft 4+5⁄8 in) |
| Length over buffers | 18,162 mm (59 ft 7 in) |
| Bogie wheel base | 2,800 mm (9 ft 2+1⁄4 in) |
| Wheel base | 13,000 mm (42 ft 7+3⁄4 in) |
| Body width | 3,142 mm (10 ft 3+3⁄4 in) |
| Cab length | 2,434 mm (7 ft 11+7⁄8 in) |
| Pantograph locked down height | 4,237 mm (13 ft 10+3⁄4 in) |
| Bogie center distance | 10,200 mm (33 ft 5+5⁄8 in) |
| Height over pantograph | 4,237 mm (13 ft 10+3⁄4 in) |
| Body width | 3,142 mm (10 ft 3+3⁄4 in) |
| Coupling | Central Buffer Couplers (CBC) |
| Surface | corrugated or plain |
| Traction motors ||
| Type | 6FXA 7059 3-phase asynchronous motors, 1,166 kW (1,563 hp), 2180 V, 370 A continuous, 396 A for 1 hr, 540 A max, 1585 rpm continuous, 3174 rpm max, Weight 1990 kg. Forced-air ventilation, partly suspended. Torque 6930/10000 N-m. 96% efficiency. |
| Make | ABB |
| Traction motors insulation | Class 200 |
| Traction Motor's Short Time Overload Rating | 1150 kW, 1540 V, 540 A, 1107 rpm |
| Traction Motor's 1 hour rating | 1150 kW, 2044 V, 396 A, 1485 rpm |
| Traction Motor's Continuous Rating | 1150 kW, 2180 V, 370 A, 1585 rpm |
| Number of Traction Motors | 4 |
| Gear Ratio | 67:35:17 (160 km/h or 99 mph) 59:35:19 (200 km/h or 120 mph) |
| Transformer ||
| Type | ABB LOT-7500/LOT-7775: {7475 kVA/7775 kVA, 25 kV, 299A-primary/311A}-primary, {4x1269 V, 4x1450 kVA, 4x1142 A}-secondary, {1000 V, 334 kVA, 334 A}-Auxiliary, {960 V, 2x622.5 kVA, 2x648 A}- Hotel Load and {1154 V, 400 kVA, 347 A}-Filter |
| Transformer Insulation | Class A |
| Make | ABB, HI VOLT, BHEL |
| Weight | 10000 +/-3% kg |
| Power Converter ||
| Number of converters | 2 |
| Semiconductors | GTO thyristors / IGBT |
| GTO | Type : UW-2423-2810 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 2800 V. Drive converter rated at 2180 V phase to phase, 953 A output current *per phase, motor frequency from 0 to 160.3 Hz. |
| IGBT | IGBT type 5SNA 1200G450300 2105 kW, individual axle control configuration, MITRAC software, water cooled. Newer locomotives have IGBT based propulsion system. |
| Hotel Load Converter ||
| Make | BHEL / ABB |
| Rating | 2x500 kVA |
| Voltage | 750 V +/- 5%, 3 phase |
| Bogie ||
| Type | Bo-Bo Henschel Flexifloat bogies with quill drive. Bogie center distance 10,200 mm (33.5 ft); bogie wheelbase 2,800 mm (9.2 ft) Unsprung mass per axle: 2.691 t This Locomotive has a Fully Suspended Drive. |
| Drive Arrangement | Gear coupling and 3-stage gears |
| Design | 2-axle fabricated |
| Primary suspension | coil |
| Secondary suspension | coil |
| Pantograph ||
| Type | Two Stone India (Calcutta) AM-92, Two WBL-85, Two Schunk for the imported locomotives. |
| Pantograph Weight | 231 kg |
| Other information ||
| 2 FLAKT ABB Traction Motor Blowers | 3.6 cubic meter per sec |
| Landert Traction Motor Blower Motor | 3 phase, 415 V, 50 Hz, 2930 rpm, 25 kW |
| 200L55-RFXH2A-01 Traction Motor Blower Motor Insulation | Class F |
| 2 Oil Cooler Blowers | 8.8 cubic meter per sec |
| Landert Oil Cooler Blower Motor | 3 phase, 415 V, 50 Hz,2930 rpm, 25 kW |
| 200L55-RH2A Oil Cooler Blower Motor Insulation | Class F |
| 2 Howden Safanco Scavenge Blowers for Traction Motors and Oil Cooler Blower | 0.664 cubic meter per sec |
| Landert Scavenge Blower Motor for Traction Motors and Oil Cooler | 3 phase, 415 V, 50 Hz, 2850 rpm, 3 kW |
| 100L28-R2C Scavenge Motor Blower Motor Insulation | Class H |
| 2 Transformer Oil Pumps by Plumeliaz | 1000 liters per minute |
| Landert Transformer Oil Pump Motor | 3-phase, 415 V, 50 Hz, 2850 rpm, 4.7 kW |
| 112M-2B type Transformer Oil Pump Motor Insulation | Class F |
| 2 Converter Oil Pumps by Plumeliaz | 960 liters per minute |
| Converter Oil Pump Motor by Landert | 3-phase, 415 V, 50 Hz, 2860 rpm, 11 kW |
| 112M-2F type Converter Oil Pump Motor Insulation | Class F |
| 2 Main Compressors by D&M | 1 kg/cm$^2$ |
| Main Compressor Motor by Landert | 3-phase, 415 V, 50 Hz, 730 rpm, 15 kW |
| 200155-RPAH8B Main Compressor Motor Insulation | Class H |
| 2 Machine Room Blower by Flakt and ABB | 1 cubic meter per sec. |
| Machine Room Blower Motor by Landert | 1-phase, 415 V, 50 Hz, 2830 rpm, 2.6 kW |
| 132M-RFXHE2C type Machine Room Blower Motor Insulation | Class F |
| Scavenge Blower for Machine Room Blower by Howden Safanco | 0.1 cubic meter per sec. |
| Scavenge Blower Motor for Machine Room Blower by Landert | 1-phase, 415 V, 50 Hz, 2910 rpm, 0.75 kW |
| 9DL24-RE2C type Scavenge Blower Motor for Machine Room Blower Insulation | Class F |
| Auxiliary Compressor by D&M and Bristol | 141.6 ft per min., 7.03 kg per cm$^2$. |
| Auxiliary Compressor Motor by D&M | 110 VDC, 1450 rpm, 75 kW |
| Battery by Saft Nife | 110 V, 199 AH, NiCd (SAF-39 SBL199) |

## Performance

The WAP-5 (5440 HP) has the following capacity for ICF coaches in tonnes:
| Gradient | Start | 40 km/h | 50 km/h | 60 km/h | 70 km/h | 80 km/h | 90 km/h | 100 km/h | 110 km/h | 120 km/h | 130 km/h | 140 km/h | 150 km/h | 160 km/h |
| Level | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1470 | 1230 |
| 1 in 500 | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1470 | 1250 | 1065 | 910 |
| 1 in 200 | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1350 | 1160 | 995 | 860 | 745 | 645 |
| 1 in 150 | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1310 | 1125 | 970 | 840 | 730 | 635 | 550 |
| 1 in 100 | 1500+ | 1500+ | 1500+ | 1500+ | 1460 | 1325 | 1125 | 970 | 840 | 730 | 635 | 555 | 480 | 420 |
| 1 in 50 | 1010 | 955 | 940 | 865 | 780 | 710 | 610 | 525 | 455 | 400 | 345 | 305 | 265 | 230 |
The average weight of an ICF coach is 55 tonnes.

## Gallery

* WAP-5 resting at Bhopal.