Electric Locomotive
Selection of Suspension Arrangement of Traction Motors : A Right Approach
Abstract Motor suspension arrangement is of paramount importance for the reliability of traction motors. Another vital input for the selection of traction motor for given motor suspension arrangement is its rotational speed. Non-availability of any complied information on the relationship of rotational speed of traction motors and their mounting arrangement makes the jobs of Rolling […]
What is Electricity, Drift Velocity and Electric Current?
Last updated on April 5th, 2015 at 06:18 am Electricity is flow of free electrons and also called flow of charge. While doing so, it does work and has been made use during the last two centuries by scientists and engineers to help mankind. Electronic charge can be made to flow under the action of […]
Weight Transfer during Braking
Last updated on April 5th, 2015 at 06:18 am On application of brakes on the vehicle, inertia forces are set up. The braking force is applied at lesser height whereas the vehicle load is at a higher height, resulting a couple to act on the body of the vehicle. This results an additional loading on […]
How a locomotive works a train?
Last updated on April 5th, 2015 at 06:17 am When we were child, looking at the mammoth size of steam engine powering the train was a wonderful sight. The wheel in front of the loco pilot was assumed to be driving wheel similar to road vehicle. Self steering rail-wheel profile is the reason for negotiating […]
Re-engineering of Stators of Three phase Traction Motors type 6FRA 6068 used in WAG9/WAP7 locomotives for Improving their Reliability
Last updated on April 5th, 2015 at 06:17 am Research By: R.N.Lal, Senior Executive Director Standards, Ganesh , Director Standards Electrical Directorate , Research Design and Standards Organisation , Lucknow Abstract Insulation and brazed joint failures in the stators of three phase traction motors used in electric locomotives on Indian Railways are primarily on account […]
Selection of Suspension Arrangement of Traction Motors : A Right Approach
Last updated on April 5th, 2015 at 06:16 am Abstract Motor suspension arrangement is of paramount importance for the reliability of traction motors. Another vital input for the selection of traction motor for given motor suspension arrangement is its rotational speed. Non-availability of any complied information on the relationship of rotational speed of traction motors […]
Regeneration in Electric Locomotives with DC Traction Motors : A Strategic Domain
Last updated on April 5th, 2015 at 06:16 am By: Mr R.N.Lal, Senior Executive Director Standards & Mr Ganesh, Director, Standards Electrical Directorate, Research Design and Standards Organisation , Lucknow Introduction Out of all modes of transportation system, only Indian Railways (IR) has been matching with the burgeoning growth of the economy of India by maintaining […]
History of Electric Locomotive over Indian Railways
Last updated on November 21st, 2014 at 10:31 am Electric Traction on Indian Railways started with 1500V DC traction and therefore initial Locomotives finding place on Indian Railway maps were only DC Locomotive. The development of locos on Indian Railways thus started. Traction voltage system started from 1500V DC, 3000V DC in Howrah Division of […]
Electric Locomotive
Last updated on April 5th, 2015 at 06:16 am Steam Locomotive has always been a subject of curiosity amongst generation from the time introduced over Indian Railways. Railways have mainly been identified by its rhythm sound most popularly called Chuk-Chuk Jude. With the advancement of technologies led to the introduction of electric and diesel locomotive […]