Your question: What 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.

Which type of motor is used for traction Why?

1. DC shunt motor is a constant speed motor but for traction purpose, the speed of the motor should vary with service conditions. 2. In case of DC shunt motor, the power output is independent of speed and is proportional to torque.

What is a traction drive motor?

The traction drive is a non-gear reduction technology that minimizes vibration and noise. The negligible transmission error makes it the smoothest and most quiet method to me- chanical adjust speed and torque. The following a brief explanation. Primary Advantages of the Traction Drive. Well Suited for Fine Precision.

Which motor is most suitable for electric traction?

DC Series motor speed-torque characteristics are such that as torque increases speed decreases. DC series motor has develops high torque at low speeds, low torque at high speed, this is the basic requirement of traction unit. Commutating property of series motor is good so we get sparkles commutation.

IT IS INTERESTING:  Can you drive a car with a broken lifter?

How do traction motors work?

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.

Which motor is used in metro train?

THREE PHASE SLIP RING INDUCTION MOTOR has been used in DELHI METRO. Dc series motor is ideal for traction but the maintenance cost of which is very high also needs the conversion and smoothening of AC voltages.IM has less maintenance,high starting torque, cheap etc.

What are the requirements of traction motor?

General requirements of Traction motors / traction system

  • High starting torque. A traction motor must have high starting torque. …
  • Simple speed control – …
  • Suitable speed Torque Characteristics – …
  • Parallel Running – …
  • Overload Capacity – …
  • Size of Motor – …
  • high Efficiency. …
  • Braking –

Are locomotives AC or DC?

All in all, the AC traction locomotive offers about twice the amount of adhesion as a DC unit. Therefore, a modern lightweight AC locomotive such as the RX500 can provide as much or more tractive effort than an old style DC unit like the SW1200 which weighs 60% more.

What are four advantages of traction drives?

Negligible Transmission Error

  • Smooth rolling contact allows for negligible transmission error.
  • Eliminates speed irregularity inherent in gear transmissions.
  • Great fit in application where the angular velocity ratio is important.

Who makes traction motors?

List of traction motor manufacturers

IT IS INTERESTING:  Your question: How much does rust proofing a car cost?
Manufacturer Notes
Alstom
ATB-SEVER Electric machines and drive systems, asynchronous and DC motors for traction, and synchronous traction generators
Best Electric Machine Manufacturer of brushless wound-rotor (synchronous) doubly-fed electric motor.
Bharat Heavy Electricals Limited

Which type of DC motor is used for electric 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.

Blog about car repair