This document discusses electric locomotives. It begins with an introduction defining an electric locomotive and providing a brief history of electric trains in India starting in 1925. It then describes the main traction systems used in electric locomotives including DC, single phase AC, and three phase AC systems. Key parts of an AC electric locomotive are outlined such as the pantograph, transformer, rectifier and inverter. India's first high-powered electric locomotive assembled in Bihar is highlighted with details about its horsepower, speed and IGBT-based propulsion technology. Advantages and future scope of electric locomotives in India are presented.
Er.Amit Chaurasiya studies at Azad Technical Campus Lucknow.All slide make very clear and easily understood suitable for Electrical Engineering students. I hope you will easily understand.
Er.Amit Chaurasiya studies at Azad Technical Campus Lucknow.All slide make very clear and easily understood suitable for Electrical Engineering students. I hope you will easily understand.
Basics of electric traction system .
Covering technologies used and their use in Indian railway.
Types of traction systems.
Working basics of various types.
Historical analysis to some extent.
Basics of electric traction system .
Covering technologies used and their use in Indian railway.
Types of traction systems.
Working basics of various types.
Historical analysis to some extent.
Railway Electrification -
Electricity is used to eliminate smoke and take advantage of the high efficiency of electric motors; however, the cost of railway electrification means that usually only heavily-used lines can be electrified.
the power for electric locomotives can come from clean and/or renewable sources, including geothermalpower, hydroelectric power, nuclear power, solar power and wind turbines.
Electric locomotives benefit from the high efficiency of electric motors, often above 90%. Additional efficiency can be gained from regenerative braking, which allows kinetic energy to be recovered during braking to put some power back on the line. Newer electric locomotives use AC motor-inverter drive systems that provide for regenerative braking.
Thank you.
CONTAINS
INTRODUCTION TO INDIAN RAILWAY………………..
POWER HOUSE…………………………..
TRAIN LIGHTING……………………….
FITTING SHOP……………………………...
REFRIGERATION AND AIR CONDITIONING…………………………..
CARRIAGE MOTORS WORKSHOP……
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1. Electric Locomotive
Submitted To
Dr. Dwarka Prasad
(Principal)
(LIET polytechnic Alwar)
Submitted By
Subhash Kumar
B.Tech (Final Year)
(Roll. No-14ELDEE052)
2. INTRODUCTION
An electric locomotive is a
locomotive powered by
electricity from overhead lines,
a third rail or on-board energy
storage such as a battery or
fuel cell.
3. History in India
Railway electrification in India began
with the first electric train, between
Bombay Victoria Terminus and Kurla on
the Harbour Line, on 3 February 1925
on the Great Indian Peninsula Railway
(GIPR) at 1500 V DC.
4. TRACTION SYSTEMS
A system which causes the propulsion of
vehicle in which tractive or driving force is
obtained from various devices such as diesel
engine drives, steam engine drives, electric
motors, etc. is called as traction system.
5. Cont.
The traction system can be classified as non-electric
and electric traction systems.
Non-electric tractionsystem
Electrictraction system
6. Non-Electric Traction System
A traction system that doesn’t use
electrical energy for the movement of
vehicle at any stage is referred as
non-electric traction system.
7. Example NETS
The steam locomotive
system uses the
superheated steam to
produce mechanical
energy for the movement
of vehicle
8. Electric traction system
In this, electrical motors are
used for producing the
vehicle movement and are
powered by drawing
electricity from utilities or
diesel generators or
batteries.
9. Supply Systems of Electric Traction
DC traction system
Single phase AC traction system
Three phase AC traction system
Composite traction system
10. 1. DC Traction System
In this traction system, electrical motors are operates on
DC supply to produce necessary movement of the vehicle.
Mostly DC series motors are used in this system.
DC compound motors are used where regenerative
braking is required.
only one conductor or rail is required to supply power to
locomotive while track rails are used as return conductors
in majority of cases.
11. Cont….
This single phase low voltage is then
converted into DC voltage using suitable
converters or rectifier such as power
electronic converter, rotary converters,
mercury arc converters, etc. The DC supply is
then applied to the DC motor via suitable
contact system.
12. 2.Single Phase AC Traction System
In this type of traction system, AC series motors are
used to produce the propulsion of vehicle.
This single phase supply is fed to the locomotive unit
via a single overhead line while track provides the
return path.
The secondary tapping of this transformer offer
variable voltage to AC series motor for speed
regulation.
13. 3.Three Phase AC Traction System
In this, three phase induction motors are used
for the movement of locomotive.
This system employs two overhead lines for
two phases, whereas the track forms third
phase.
14. 4.Composite Traction System
So by combining the advantages of AC/DC
and single/three phase systems, the overall
performance of the traction system gives
better result than individual system.
15. Main Parts of AC Electric Locomotive
Pantograph
Circuit Breaker
Transformer
Rectifier
Main Inverter
Battery
16. Pantograph
A pantograph is an apparatus
mounted on the roof of an electric
train, tram or electric bus to collect
power through contact with an
overhead catenary wire.
It is a common type of
currentcollector.
17. Circuit Breaker
A circuit breaker is a switching
device that interrupts the abnormal
or fault current. It is a mechanical
device that disturbs the flow of high
magnitude (fault) current and in
additions performs the function of a
switch.
Circuit Breaker
18. Transformer
Electrical power transformer is a static
device which transforms electrical energy
from one circuit to another without any
direct electrical connection and with the
help of mutual induction between two
windings.
19. Country’s first high-powered electric
locomotive assembled in Madhepura in Bihar.
20. Key Facts
12000 horsepower (HP) engine .
maximum speed of 110 km per hour.
The high horsepower electric locos are equipped
with IGBT (IGBT based propulsion technology)
based propulsion technology.
21. IGBT based propulsion technology
It has three-terminal power semiconductor device
primarily used as electronic switch. It gives
combined advantages of high efficiency and fast
switching. It offers greater power gain than standard
bipolar type transistor combined with the higher
voltage operation and lower input losses.
22. Advantage of electric locomotives
High starting torque
Less maintenance required.
Pollution free.
Economical operating cost.
Easy supply of power
Regenerative braking.
24. Future Scope
In the next five years, Indian railway market will be the 3rd
largest, accounting to 10% of the global market and Metro
rail is going to be 70% of the railway market in India.
In India, due to increasing population and economic
expansion, the electricity demand and supply balance is
skewed. To tackle the situation we need to develop eco-
friendly cities with more public transports. This need leads to
the expansion of Metro rail network.
25. REFRENCES
[1].Haut ,F.J.G, “The history of the electric locomotive”, Allen & Unwin,
1969(“https://books.google.co.in/books?id=NyNSAAAAMAAJ&q=electric+lo
comotive&dq=electric+locomotive&hl=en&sa=X&ved=0ahUKEwiwzqre55Pa
AhUHPo8KHWhpD6QQ6AEIKDAA”).
[2] Basil Knowlman Cooper, “Electric Railways”, I. Allan, 1965,url(
https://books.google.co.in/books?id=uxUKAAAAMAAJ&dq=electric+locomot
ive&source=gbs_book_similarbooks).