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You are here: Home / INDIAN RAILWAY NEWS / Indian Railway Powerful Passenger of High Speed WAP-7HS Locomotives

Indian Railway Powerful Passenger of High Speed WAP-7HS Locomotives

March 7, 2019 by indiaadmn456 Leave a Comment


Indian Railway Powerful Passenger of High Speed WAP-7HS Locomotives

WAP-7 is the most powerful passenger locomotive over Indian Railways capable of hauling 24 coaches high speed trains. However, the maximum service speed of locomotive is 140 kmph. To operate the trains at faster speed and reduce the journey time, enhancing the maximum service speed of locomotive is necessary.

Indian Railway has undertaken project of upgradation of speed potential of WAP-7 locomotives from 140 kmph to 160 kmph. Chittaranjan Locomotive Works (CLW) turned out new version of WAP-7 locomotive (WAP-7HS) having potential of maximum service speed as 160 kmph. The complete design and development of locomotive have been done indigenously. The necessary simulation and modelling are carried out by CLW in-house. To enhance the speed of the locomotive, a weight reduction of about 14 tonnes have been carried out. The gear ratio has also been changed from 3.6 (72:20) to 3.2 (70:22). The software modification has been carried out to optimize slip-slide control and tractive effort. The locomotive shall be put into service after statuary tests and trials. The new type of locomotive is expected to facilitate operation of premium trains such as Rajdhani, Shatabdi and Duranto at higher speed.

Important Parameters WAP-7HS
Total H.P. 6000
Wheel Arrangement Co-Co
Max. Tractive effort at start 286 kN
Total weight of loco 109 t±1%
Axle loads (Max.) 18.2 t±2%
Length over buffers 20562 mm
Total width of loco 3152 mm
Maximum service speed 160 kmph
Gear Ratio 3.2

Source: PIB



Filed Under: INDIAN RAILWAY NEWS Tagged With: INDIAN RAILWAY NEWS

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