NCR - maar bhi, raftaar bhi - Harshit Sharma

NEW VERSION WAP-7 LOCO OF 160 KMPH FLAGGED OFF :: Chittaranjan Locomotive Works (CLW) turned out new version of WAP-7 locomotive (WAP-7HS) having potential of maximum service speed as 160 kmph today afternoon. The locomotive shall be put into service after statutory 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.
Shri Praveen Mishra, General Manager inaugurated this locomotive in a simple ceremony inside shop. Shri Ram Prakash, Principal Chief Electrical Engineer and other Sr.Officers were present during the inauguration.
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is to be noted that,WAP-7 is the most powerful passenger locomotive over Indian Railways capable of hauling 24 coach 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.
The complete design and development of locomotive have been done indigenously at CLW. 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.