In this article Poly Notes Hub discuss about Electric Traction. Topics are – What is Electric Traction? Advantages and Disadvantages of Electric Traction system.
Author Name: Arun Paul.
What is Electric Traction?
Traction is the ability to pull something across a surface, particularly a road or a track. It is the process of moving a vehicle using electricity from overhead wires, third rails, storage batteries, or diesel generators that are attached to the vehicle. To put it simply, electric traction refers to traction systems that run on electric power.
Electric trains, tramcars, tram buses, and other hybrid cars all make extensive use of electric traction technology.
Advantages of Electric Traction
The main advantages of this system are –
- It has less starting time.
- It has high starting torque.
- Its traffic handling capability is also high.
- It has high power to weight ratio.
Disadvantages of Electric Traction
The main disadvantages of this system are –
- It requires high capital cost.
- This system can be used at the places where electricity is available.
- Power lines are cause disturbance.
Electric Traction System In India
India’s public transport infrastructure is heavily dependent on electrical traction systems for both surface and metro railways. The fact that trains, trams, and metro vehicles are run by electricity defines these systems.
This is an overview of these systems:
A. Surface Railway In India
- Electrification: To reduce their impact on the environment and decrease their dependence on fossil fuels, many of India’s main railway lines have been electrified. Third rail or above wires (catenary system) are commonly used in electrification.
- Voltage and Systems: 1.5 kV DC (direct current) and 25 kV AC (alternating current) overhead wires are the most widely used electrification systems in India. Different voltage systems may exist in different places.
- Rolling Stock: For both passenger and freight transportation, electric locomotives and multiple units (EMU) are utilized. These run on electricity and offer dependable, effective services.
- High-Speed Rail: Electrified high-speed rail corridors like the Rajdhani Express and Shatabdi enable quicker and more effective travel.
B. Metro Railway In India
- Electrification: Third rails or overhead wires are used to power trains in the majority of India’s fully electrified metro systems.
- Voltage and Systems: Like surface railroads, India’s metro systems frequently employ 25 kV AC overhead wires. Third rail systems with 750 V DC are also used by several metro systems, such as the Delhi Metro.
- Rolling Stock: India’s metro trains, which provide a practical and effective form of urban transit, are often propelled by electric motors.
- Urban Connectivity: In large Indian cities, metro railroads are an essential means of transit that ease traffic jams and cut pollution.
- Extension: Several cities are expanding their metro networks to cover a large amount of areas and connect more people.
Conclusion | Diploma Engineering Notes | Poly Notes Hub
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