Manish Kumar Saini has Published 793 Answers

What is Booster Transformer in Electric Traction?

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 13:02:24

In this article, we will see how booster transformers are used in electric traction systems for reducing the interference with the communication systems. We will also take a look at the methods of connecting the booster transformer in a traction system.In AC traction systems, the return current mainly flows to ... Read More

What is a Trolleybus? – Advantages and Disadvantages

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:59:24

What is a Trolleybus?A trolleybus is an electric bus that draws its electricity from overhead wires, which are generally suspended from roadside posts, using spring loaded trolley poles. The trolleybus is also known as trolley coach or trackless trolley or trackless tram. The trolleybus is a pneumatic tyre vehicle.In case ... Read More

What is Specific Energy Consumption in Electric Traction?

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:56:50

Specific Energy ConsumptionThe amount of energy input to the traction motors is known as energy consumption of the train. It is the energy consumed for the propelling the train. The total energy drawn from the distribution system is greater than this energy and is equal to the energy consumed by ... Read More

What is Pantograph Collector in Electric Traction?

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:54:47

What is Pantograph Collector?The current in the overhead system is collected with the help of a sliding contact collector mounted on the roof of the vehicle. The pantograph current collector is used in the railways for collection of current from the overhead system where the operating speed of the train ... Read More

Electric Traction: What is Mechanical Regenerative Braking? (Graded Track System)

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:52:27

When the train is accelerated up to a certain speed it requires energy, which is known as kinetic energy, corresponding to that speed. This kinetic energy is given by the expression, $$\mathrm{KE\mathrm{\: =\: }\frac{1}{2}\mathit{mv^{\mathrm{2}}}}$$During coasting period, a part of this stored energy is utilized in propelling the train against frictional ... Read More

What are the Advantages and Disadvantages of Regenerative Braking?

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:47:08

What is Regenerative Braking?The method of braking in which no energy is drawn from the supply system during braking period and some of the energy (kinetic energy of rotating parts) is fed back to the supply system is known as regenerative braking.The regenerative braking is the most efficient method of ... Read More

Safety and Protective Devices Used in an Electric Elevator

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:26:21

In this article, we will throw some light on the different safety and protective devices used in electric elevators.Electric elevators are the electrically operated devices which are used for lifting up and down, moving load in suitable direction, and lifts in multistoried buildings for facilitating up and down movements of ... Read More

Types of Motors Used in an Elevator (Elevator Motors)

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:23:01

In this article, we will take a look at the different types of electric motors used in the elevators. We will also discuss the suitability of different motors in different types of elevators, power calculation, starting torque requirements, and speed control methods of elevator motors.What is an Elevator Motor?An elevator ... Read More

Transition Methods in Electric Traction: Open Circuit Transition, Shunt Transition, and Bridge Transition

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:19:30

The transition methods are defined as the methods of changing over the connections from one grouping to another. Depending upon the change over from full series to first parallel, the transition methods employed in the electric traction system are of the following three types −Open Circuit TransitionShunt TransitionBridge TransitionLet's discuss ... Read More

Difference between AC and DC Generator

Manish Kumar Saini

Manish Kumar Saini

Updated on 20-May-2022 12:16:06

This article is about AC generator and DC generator, and the main differences between the AC and DC generators.What is a Generator?An electrical machine which converts the mechanical energy input into electrical energy output is called the generator or electric generator.Though, the electrical energy generated by the machine can be ... Read More

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