What are the mechanical and electrical features of traction motor?

What are the mechanical & electrical features of traction motors?

In traction work, usually more than one motor (two or four motors per motor car) are required. Traction motors, therefore, should be of such speed-torque and current-torque characteristics that when they are operated in parallel and mechanically coupled, they share the load almost equally.

What are the special features of electric traction motor?

The ideal characteristics of an electric motor drive for traction application in an electric and hybrid electric vehicle are high torque at low speed region for fast acceleration, hill climbing and obstacle negotiation, and low torque at high speed for normal driving.

What are the features of electric traction?

FEATURE OF TRACTION MOTOR DRIVE Electrical Features  High Starting Torque  Simple Speed Control  Regenerative Braking  Better Commutation  Capability Of Withstanding Voltage Fluctuations. Mechanical Features  Light In Weight.  Small Space Requirement.  Robust And Should Be Able To Withstand Vibration.

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What are the function of an electric traction motor?

The traction motor of EVs is responsible for converting electrical energy to mechanical energy in such a way that the vehicle is propelled to overcome aerodynamic drag, rolling resistance drag, and kinetic resistance.

What is meant by electric traction?

Introduction: By electric traction is meant locomotion in which the driving (or tractive) force is obtained from electric motors. It is used in electric trains, tramcars, trolley buses and diesel-electric vehicles etc.

What is electric traction list its advantages?

The electric traction system is the most efficient of all other traction system such as steam and internal combustion (IC) engine type systems. It offers several benefits over other systems, including quick start and stop, very efficient, pollution-free, easy to handle and easy speed control.

Why electrical traction system is mostly used in traction explain?

An AC traction system has become very popular nowadays, and it is more often used in most of the traction systems due to several advantages, such as quick availability and generation of AC that can be easily stepped up or down, easy controlling of AC motors, less number of substations requirement, and the presence of …

Which motor is used in electric traction?

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.

Which motor is suitable for traction?

Many single phase ac motors have been developed for traction purposes but only compensated series type commutator motor is found to be best suited for traction. Single phase induction motors have been abandoned as they are not capable of developing high starting torque.

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Which is the important features of electric drives?

The main function of electric drive system is to transfer energy from storage system to wheels, which is used for overcoming rolling resistance, air resistance, acceleration resistance, and climbing resistance. When braking, the mechanical energy is converted to electrical energy back to the energy storage system.

Who makes electric traction motors?

Some of the leading players in the global Electric Traction Motor market are Abb Ltd, American Traction Systems, Robert Bosch, Ametek, CG Power And Industrial Solutions, CRRC, Hitachi, Hyundai Rotem, Johnson Electric, Kawasaki, Mitsubishi, Siemens, Skoda, Traktionssysteme Austria, Wabtec, Eaton, Nidec Corporation, Otis …

Where are traction motors used?

Traction motors are used in electrically powered rail vehicles (electric multiple units) and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with electrical transmission systems (Diesel-electric Locomotives, electric hybrid vehicles), …

How traction motor works in locomotive?

The traction motors provide propulsion power to the wheels. There is one on each axle. Each motor drives a small gear, which meshes with a larger gear on the axle shaft. This provides the gear reduction that allows the motor to drive the train at speeds of up to 110 mph.