DC series motors...
In delhi metro used motor is INDUCTION MOTOR.
dc series motor is used for traction...
traction means propulsion of vichel and traction motor means the motor which propel the our object and it have tractive effort thats why we are saying traction and it is used in railways
DC Traction Motor.
A popular modern, traction, motor used in the hubs of cycles and quaricycles, is the induction motor. This uses pulses on alternate windings, provided by electronic control unit. The speed is increased by increasing the frequency of the pulses.
it is a motopr which is used to drive the electrical vehicles
DC Motor :- SHUNT MOTOR, Series Motor, Compund Motor, ( mainly used in traction system only. as there performanace is very poor & DC supply is not available easily so there uses is less then AC motors,) AC Motor:- Induction Motor ( Slip ring Type, squrrile cage Induction motor) Syncronous Motor.
it is used for small power application ...
A traction motor is a type of electric motor used to power the driving wheels of a vehicle such as a railroad locomotive, electrical multi-unit train (such as a subway or light rail vehicle train), a tram, or an automobile. In other words there is a motor directly powering each wheel.A normal electric motor would have one motor powering many wheels through a driveshaft or some system to tranfer the energy.Traction motors are more efficient. They are more complex though, so DIY are going to stick with the simpler to build model with one motor
file type used to transfer formattd documents between applications
stepper motor
Synchronous motor or induction motor