Indian locomotive class WAP-4











WAP-4

WAP-4 Class locomotive of Indian Railways.jpg
A WAP - 4 class locomotive 22820 of Indian Railway belonging to Arakkonam shed, bringing the Thiruvananthapuram - Nagercoil Passenger train to Nagercoil Junction




















Type and origin
Power type
Electric
Builder
Chittaranjan Locomotive Works, West Bengal, India
Build date
1993 till December 2, 2015
Total produced
776 as of August 2016 (Production Ceased)








































































Specifications
Configuration:
​
 • AAR
C-C
 • UIC
Co'-Co'
Gauge
5 ft 6 in (1,676 mm)
Bogies
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
18.794 m (61 ft 7 29⁄32 in)
Width
3.179 m (10 ft 5 5⁄32 in)
Height
4.272 m (14 ft 3⁄16 in)
Axle load
18,800 kg (41,400 lb)
Loco weight
112,800 kg (248,700 lb)
Electric system/s
25 kV 50 Hz AC AC Overhead
Current pickup(s)
pantograph
Traction motors
Hitachi HS15250
Loco brake
Air
Train brakes
Air
Safety systems
Slip 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
Power output
Continuous: 5,060 hp (3,773 kW)
Tractive effort
Starting : 30,800 kgf (302 kN; 68,000 lbf)




















Career
Operators
Indian Railways
Numbers
22061 and from 22201 to 22399 and 22500 to 22999 and 25000-25051
Locale
All over India
Disposition
Active




WAP-4 loco of Erode shed hauling an Express train in India


WAP - 4 is the mainstay passenger electric locomotive used in India.


The locomotive was developed after a previous class WAP-1 was found inadequate to haul the longer, heavier express trains (24-26 coaches) that were becoming the mainstay of the Indian Railways network. It was introduced in 1994, with a similar bodyshell to the WAP-1 class, but with Hitachi traction motors.




Contents






  • 1 List of WAP 4 loco sheds:


  • 2 Image Gallery


  • 3 See also


  • 4 References


    • 4.1 Notes


    • 4.2 Bibliography







List of WAP 4 loco sheds:


• Ghaziabad


• Arakkonam


• Erode


• Mughalsarai


• Itarsi


• Howrah


• Santragachi


• Lallaguda


• Kanpur


• Ludhiana


• Bhusaval


• Visakhapatnam


• Gonda


• Vijayawada


• Vadodara


•Royapuram




Image Gallery






  • Indian locomotive class WAP-4 (22592) from Vijayawada Loco Shed (BZA)







  • Indian locomotive class WAP-4 (22794) from Erode Loco Shed (ED)







  • Indian locomotive class WAP-4E (22352) from Vadodara Loco Shed (BRC)







  • Indian locomotive class WAP-4 (22595) from Lallaguda Loco Shed (LGD)







  • Indian locomotive class WAP-4 (22278) from Mughalsarai Loco Shed (MGS)







  • Indian locomotive class WAP-4 (22685) from Vijayawada Loco Shed (BZA)







  • Indian locomotive class WAP-4 (22846) from Bhusawal Loco Shed (BSL)







  • Indian locomotive class WAP-4 (25050) from Visakhapatnam Loco Shed (VSKP)







  • Indian locomotive class WAP-4 (22291) from Howrah Loco Shed (HWH)







  • Indian locomotive class WAP-4 (22304) from Vijayawada Loco Shed (BZA)







  • Indian locomotive class WAP-4 (22746) from Vijayawada Loco Shed (BZA)







  • Indian locomotive class WAP-4 (22856) from Itarsi Loco Shed (ET)







  • Indian locomotive class WAP-4 (25024) from Arakkonam Loco Shed (AJJ)







  • Indian locomotive class WAP-4 (22794) from Erode Loco Shed (ED)







  • Indian locomotive class WAP-4 (22877) from Santragacchi Loco Shed (SRC)






See also




  • History of rail transport in India

  • Indian Railways

  • Locomotives of India

  • Rail transport in India



References



Notes





Bibliography


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  • Hughes, Hugh (1996). Indian Locomotives: Part 4 – 1941–1990. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-1-1..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}













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