Electrical Engineering and Railways
Return Conductor and Booster Transformer
Last updated on September 6th, 2013 at 03:18 pm A current carrying conductor produces its own magnetic field around it. This magnetic field varying with time induces an electro – motive force (emf) in a conductor parallel to the current carrying conductor. This induced emf disturbs the communication and signalling line and while undertaking electrification works, precautions are […]
25kV Traction Power Supply System
Last updated on April 5th, 2014 at 08:58 am 25 kV Single Phase is the most preferred and universally accepted voltage standard for overhead traction system. Looking for any other voltage system, means every things has got to be developed namely traction power supply system, Over Head Equipment, vehicle traction system etc. In order to increase OHE voltage. 2×25 […]
Economics of Electric Vs Diesel Traction – Fuel and Line Haul Cost
Last updated on April 5th, 2015 at 06:27 am Economics of Electric vs Diesel Traction on account of fuel cost is evaluated based on the rupees spend towards energy bill for hauling 1000 GTKM of load. The trend of electrical and diesel energy cost in terms of unit charges and Rs/litre as compiled in the […]
Electrical accidents waiting to happen…
Last updated on August 7th, 2013 at 04:28 pm There was news in Times of India that 2 held for filmaker’s death – shop owner accused of causing death due to negligence. The mother-son were accused of leaving naked electric wires dangling out in the open in contravention of safety norms that led to the freak yet […]
How to be confident about safe use of electricity?
Last updated on July 23rd, 2013 at 10:11 am There are innumerable cases of fire and accidental death due to electrocution. What goes wrong and how it is not detected in time? Primarily there are two causes for this playing with the protection loose connection Protective system do operate correctly most of the time but […]
Indian Electricity Rules, 2005 defines the basic fundamentals of Electricity Safety
Last updated on August 26th, 2013 at 05:54 am Indian Electricity Rules, 2005 defines the basic fundamentals of Electricity Safety, and when followed in totality there cannot be any incidence of electrocution or electric fire. General Safety requirements are given in Chapter IV under rules 29 to 46 which covers installation, protection, operation, maintenance cut-out, identification of earth, earthed terminal, danger notice […]
Current Developments in the field of Traction motors
SINGAPORE Mass Rapid Transit Corporation (SMRT) has awarded a contract worth more than Yen 8bn ($US 80.5m) to Toshiba, Japan, to re-equip a fleet of 66 six-car metro trains with permanent-magnet synchronous traction motors. The new motors are being fitted as part of the refurbismet of the existing drive equipment, the first such upgrade since […]
Air Conditioning in Railways
Last updated on March 19th, 2019 at 11:42 am Growth of Air Conditioning assets in Railways is almost at the same rate as that for stationary application of residential, housing and shopping complex. Air Conditioning is no more a luxury but can be justified with a reasonable rate of return. The return is justified when air conditioning is in the plan […]
Benefits of Electrification
Last updated on April 5th, 2015 at 06:14 am Is economics is the only reason to prefer electric traction over diesel traction? Certainly not. Horse Power of Locomotive Horse power of locomotive is determined by the power generated by Diesel Engine in case of Diesel Locomotive whereas capacity of transformer for Electric Locomotive. Increasing transformer capacity had […]
Traction Distribution
Last updated on April 5th, 2015 at 06:14 am The most important challenge of Traction Distribution is to supply electric power to running Locomotive. Many systems have been evolved over the period based on power handling technologies available at that time and now 25 kV traction power supply is predominantly prevailing over Indian Railways. Transfer […]