Which motor is used in electric traction?
The DC motor was the mainstay of electric traction drives on electric and diesel-electric locomotives, street-cars/trams and diesel electric drilling rigs for many years. It consists of two parts, a rotating armature and fixed field windings surrounding the rotating armature mounted around a shaft.
Which type of DC motor is used in traction system?
Detailed Solution
| Motor | Application |
|---|---|
| DC series motor | Traction system, Cranes, air compressors |
| DC shunt motor | Lathe Machines, Centrifugal Pumps, Blowers, Conveyors, Weaving Machine, Spinning machines |
| DC compounded motor | Presses, Shears, Elevators, Rolling Mills |
Which type of motor is used in trains?
DC motors
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.
What are the four 4 main parts of the traction power system?
Main components of electrical traction systems: traction power substations, contact line systems, railway network section switchgear.
Where is DC series motor used?
Series DC motors are generally used where high starting torque is required, and speed variations are possible. These types of direct connection motors are, for instance, used in the traction system, cranes, air compressors, vacuum cleaners, sewing machines, etc.
Are locomotives AC or DC?
Rectifier locomotives, which used AC power transmission and DC motors, were common, though DC commutators had problems both in starting and at low velocities. Today’s advanced electric locomotives use brushless three-phase AC induction motors.
Which motor is best for traction?
AC induction three-phase asynchronous and permanent-magnet AC synchronous motors are the two most widely used traction motors in the railway sector due to their high-power output, low maintenance cost, and increased efficiency over DC electric traction motors.
Who makes traction motors?
Wabtec Corporation
Traction Motors | Wabtec Corporation.
What is the full form of Memu?
The Mainline Electric Multiple Unit (MEMU) is the Indian Railways’ version of the commuter rail system in India and has a maximum speed of around 100 kmph averaging at around 50 kmph.
What are the types of motor used in traction system?
Direct-current motors with series field windings are the oldest type of traction motors. These provided a speed-torque characteristic useful for propulsion, providing high torque at lower speeds for acceleration of the vehicle, and declining torque as speed increased.
What’s the difference between AC and DC traction motors?
The working principle of the AC traction motor is relatively simple in the modern era. Advancements in microelectronics have enabled VFD systems to control torque and speed much more easily than DC traction motors. The VFD system controls voltage, frequency, and current in the stator coils to achieve various operational outputs.
How does an asynchronous traction motor work?
Asynchronous Motors (ASM) – the rotation speed of the stator magnetic field is higher than the rotation speed of the rotor. An electric traction motor is a device that converts electricity into mechanical energy. It works using by the principle of electromagnetic induction.
Which is the best traction motor for an EV?
There are traction features present in BLDC motors like better starting torque, excellent efficiency of approximately 95-98%, and more. This type of motor is more compatible with a high-power density pattern approach. Besides, the BLDC variety is the best match for EV applications mainly due to the various traction features.