Indian locomotive class WAP-4











WAP-4

WAP4 Konark 10092017.jpg
A WAP - 4 class locomotive of Indian Railway



















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 90 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; Erode owns highest no. of WAP 4 locomotives


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 See also


  • 3 References


    • 3.1 Notes


    • 3.2 Bibliography







List of WAP 4 loco sheds


• Ghaziabad


• Arakkonam


• Erode


• Mughalsarai


• Itarsi


• Howrah


• Santragachi


• Lallaguda


• Kanpur


• Ludhiana


• Bhusaval


• Visakhapatnam


• Gonda


• Vijayawada


• Vadodara



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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