How electric train engine works in India?
Today’s advanced electric locomotives use brushless three-phase AC induction motors. Electric traction allows the use of regenerative braking, in which the motors are used as brakes and become generators that transform the motion of the train into electrical power that is then fed back into the lines.
How does Indian train engine work?
The purpose of the diesel engine is not to run the train but to turn a huge electricity generator/alternator which produces electric current (earlier Direct Current, nowadays Alternating Current), then passed through a rectifier to convert the AC to DC if required and is then transmitted to traction motors which then …
Which motor is used in electric train in India?
DC motors are used on trains is because of their high torque and good speed control. Compared to AC motors, DC motors can provide industry applications with a fine balance of strong starting torque and controllable speed for seamless yet precise performance.
Are electric trains AC or DC?
Most electrical trains operate by collecting current from an outside source, rather than generating it themselves. This can either form a DC third rail, or fourth rail (as in the London Underground), or overhead power lines (the most common type).
What is DJ in electric loco?
Yes DJ stands for “DisJuncteour” or whatever it is in french.This term probably appears because our electric locos have European origins and inspite of the older design ABCB(Air Blast Circuit Breaker)having been replaced by a simpler and more rugged VCB,the term continues to avoid confusion for drivers.
How many Pistons does a train have?
A train’s diesel engine is a large unit, with around 16 cylinders. Diesel engines work on compression ignition and do not have an external ignition agent (spark plugs) as in petrol engines.
Do electric trains use AC or DC?
The majority of modern electrification systems take AC energy from a power grid that is delivered to a locomotive, and within the locomotive, transformed and rectified to a lower DC voltage in preparation for use by traction motors.
What voltage are electric trains?
25,000 volts
Overhead line equipment (OLE) refers to the overhead wires and supporting infrastructure that carry electricity at 25,000 volts to power electric trains.
What is 3rd rail system?
Third-rail system is a means of providing electric traction power to trains, and the system uses an additional rail which is known as “conductor rail” for its work. The conductor rail is placed on the sleeper ends mostly located outside of the running rails. However, a central conductor rail is also used in some cases.
What is the full form of WAG 9?
All Over India. Disposition. active. The Indian locomotive class WAG-9 is a class of 25 kV AC electric locomotives that was developed in 1995 by ABB Group (ABB) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G), 9th generation (9) locomotive.
How does drive control of electric locomotives in India work?
How (Drive Control) of Electric Locomotives in India Work The torque put out by traction motors is directly proportional to the current they receive. For starting the train and for accelerating from low speeds they need to put out more torque hence require more current, and vice versa.
What’s the difference between Indian Railways diesel and electric locomotives?
Indian Railways engines have 16 cylinders in V configuration (V16) except for some of the lower powered ones including the WDM2 with only 12 cylinders and the WDG5 which has a V20 engine! Contrary to popular belief, electric locomotives are much older technology (1881) compared to diesel (1938)!
When was electric traction introduced in Indian Railways?
Electric traction is an environmental friendly, pollution-free and energy efficient alternative to fossil fuels. Advent of Electric Traction in IR dates back to 1925 when the Electric train services introduced between Bombay VT and Kurla Harbour on 1500 Volt DC.
What kind of power does an electric train use?
Electric rail engines are generally of 2types, whose traction motor runs with AC and DC. The above red and green lines indicate AC & DC circuits respectively. The electric locomotive doesn’t carry fuel or energy source. The energy drives the electric locomotive may be located from 100Km away itself.
https://www.youtube.com/watch?v=T1RAMLnmkD0