Which type of motor is used for traction Why?

1. The dc series motor develops high torque at start which is an essential requirement of traction service.

Which type of motor is used for traction?

The motors used are induction or asynchronous motors designed to have characteristics suitable for traction. The speed and torque of the motor are controlled by varying the frequency, voltage and current applied to the stator coils. Motors for a typical locomotive would be in the range 400 to 600 kW.

What is traction motor control?

A speed control system of traction motors for electric vehicles comprises a traction motor for causing an electric vehicle to run, a D.C. supply source for supplying voltage to the traction motor, a chopper for chopping the voltage fed from the D.C. supply source to the motor, and a chopper control circuit for …

Why induction motor is used in traction?

This is the most important feature of traction motor provides opportunity for saving on energy but also smoothness in braking, saving on wear and tear in mechanical braking system. An Induction motor works as a generator if mechanical speed is more than the synchronous speed.12 мая 2013 г.

IT IS INTERESTING:  How do you adjust the shaft length on a trolling motor?

Which type of motor are used in most?

Ok, let’s take a short overview of twelve most basic motor types used for different industrial electric drives:

  • DC Series Motor.
  • DC Shunt Motor.
  • Cumulative Compound Motor.
  • Three phase Synchronous Motor.
  • Squirrel Cage Induction Motor.
  • Double Squirrel Cage Motor.
  • Slip ring Induction Motor.
  • Single phase Synchronous Motor.

Do trains run on AC or DC?

Direct current, either directly supplied, or converted from AC onboard a train, is the most commonly used. This is because, according to railsystem.net, “DC consumes less energy compared to an AC unit for operating the same service conditions.

Which motor is used in metro train?

INDUCTION MOTOR

What is the need for traction motor control?

The control of traction motors for starting and for smooth acceleration is very much essential to avoid damage to the motors. The control equipment is provided for manual and automatic operation. Usually a master controller is used for the purpose.19 мая 2017 г.

What is traction inverter?

Traction inverters convert dc power from an on-board high voltage (HV) battery into ac power to drive the main motor or motors of an electric vehicle. In addition, traction inverters perform functions such as voltage boosting, switch protection and regenerative braking.

Which traction system is used in India?

Railway works under the Indian railway which is a state-owned organization of the Ministry of railway. Indian railway traction system uses 1.5 kV DC around Bombay and 25Kv ac is used in rest of the country.

Which type of DC motor is used for traction purpose?

The synchronous motor has been used in electric traction – the most well-known application being by the French in their TGV Atlantique train. This used a 25 kV AC supply, rectified to DC and then inverted back to AC for supply to the motor.

IT IS INTERESTING:  Does the internal combustion engine have a future?

Why 25kV is used in railway traction system?

The main reason for 25kV voltage used in railway is, that 25 kV AC more economical than 1.5kV DC voltage system. Since 25kV voltage system has higher voltage, the higher voltage reduces the current flow through conductor; this reflects to reduce the conductor size. The cost of the conductor gets less.

Are diesel locomotives AC or DC?

In a diesel–electric locomotive, the diesel engine drives either an electrical DC generator (generally, less than 3,000 horsepower (2,200 kW) net for traction), or an electrical AC alternator-rectifier (generally 3,000 horsepower (2,200 kW) net or more for traction), the output of which provides power to the traction …

What are 3 types of motor controls?

There are four basic motor controller and drive types: AC, DC, servo, and stepper, each having an input power type modified to the desired output function to match with an application.

What are the three types of motors?

It is classified into three types; they are the induction motor, synchronous motor, the linear motor. The detail explanation of the motor is expressed below.

What are the two types of motors?

Types of Electric Motors

  • AC Brushless Motors. AC brushless motors are some of the most popular in motion control. …
  • DC Brushed Motors. In a DC brushed motor, brush orientation on the stator determines current flow. …
  • DC Brushless Motors. …
  • Direct Drive. …
  • Linear Motors. …
  • Servo Motors. …
  • Stepper Motors.
Car service