@samyviji: Re# 206588-0
WAP 7 is a high speed locomotive indigenously developed by Chittaranjan Locomotive Works. It is capable of hauling trains at speeds ranging between 140 and 160 km per hour and is now largely used by Northern Railways (NR), South Central Railways (SCR) and Southern Railways (SR).
Locations

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current locomotive sheds which house this locomotive are:
Ghaziabad (Code:GZB)
Gomoh (Code:GMO)
Lallaguda (Code:LGD).
Ajni (Code:AJNI)

Performance

With a maximum speed rating of 180 km/h (IR restricts it to 145 km/hr), the WAP-7 boasts of the most phenomenal acceleration figures while hauling mail/express trains. The WAP-7 can also haul loads of 24-26 passenger coaches (1430-1550t) at 110+ km/h per hour. It is also known to haul 16 heavyweight Air Conditioned coaches (1120t) in 1:40 inclines single-handedly. At a trial conducted by Indian Railways, it clocked a speed of 177 km/h. It is the most successful passenger locomotive in the Indian Railways portfolio after the WAP-4. It is used to haul premium trains like Rajdhani Express and Shatabdi Express apart from other regular mail/express trains. It also regularly hauls other trains like the Nizamuddin-Chennai, Nizamuddin-Bangalore, New Delhi-Sealdah and the New Delhi - Mumbai Rajdhani Expresses.
Currently a 7000 hp version with IGBT traction is under development by Chittaranjan Locomotive Works.
The most unique feature of this locomotive is that it eliminates the need to have separate DG sets for air-conditioning in long distance trains hence providing huge savings on maintenance and running costs.[citation needed]This technology is called HOG or "Head On Generation" where the loco transfers electric power from its pantograph to the coaches.
A 24-coach (1500t) passenger rake can be accelerated to 110 km/h in 240 seconds (over 4.7 km) by a WAP-7; to 120 km/h in 304 sec. (6.7 km); and to 130 km/h in 394 sec. (9.9 km). Around 100 of these locomotives have been put to service as of early 2011.


Power type Electric
Builder Chittaranjan Locomotive Works, West Bengal, India
Gauge 5 ft 6 in (1, 676 mm)
Current collection method Overhead AC with pantograph
Top speed Test Run:177 km/h (110 mph), Operational: 140 km/h (87 mph)
Power output 6, 350 hp (4, 735 kW)
Career Indian Railways
Locale Northern Railways, South-Central Railway.