All Topics  
Rotor (electric)

 

 
   Email Print
   Bookmark   Link
 

 

Rotor (electric)
 
 
  Topics Rotor (electric) Topic Home

The rotor is the non-stationary part of a rotary electric motor
Electric motor

An electric motor uses electrical energy to produce mechanical energy, nearly always by the interaction of magnetic fields and current-carrying conductors....
, electric generator or alternator
Alternator

An alternator is an generator that converts mechanical energy to alternating current electrical energy. Most alternators use a rotating magnetic field but linear alternators are occasionally used....
, which rotates because the wires and magnetic field of the motor are arranged so that a torque is developed about the rotor's axis. In some designs, the rotor can act to serve as the motor's armature
Armature (electrical engineering)

In electrical engineering, an armature generally refers to one of the two principal electrical components of an electromechanical machine - a Electric motor or Electrical generator, but may also mean the pole piece of a permanent magnet or electromagnet, or the moving iron part of a solenoid or relay....
, across which the input voltage
Voltage

Electrical tension is the potential difference between two points of an electrical or electronic circuit, expressed in volts. It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor....
 is supplied. The stationary part of an electric motor is the stator
Stator

The stator is the stationary part of a rotordynamics system, such as in an electric generator or electric motorDepending on the configuration of a spinning electromotive device the stator may act as the field magnet, interacting with the armature to create motion, or it may act as the armature, receiving its influence from moving...
.






Discussion
Ask a question about 'Rotor (electric)'
Start a new discussion about 'Rotor (electric)'
Answer questions from other users
Full Discussion Forum



Encyclopedia


The rotor is the non-stationary part of a rotary electric motor
Electric motor

An electric motor uses electrical energy to produce mechanical energy, nearly always by the interaction of magnetic fields and current-carrying conductors....
, electric generator or alternator
Alternator

An alternator is an generator that converts mechanical energy to alternating current electrical energy. Most alternators use a rotating magnetic field but linear alternators are occasionally used....
, which rotates because the wires and magnetic field of the motor are arranged so that a torque is developed about the rotor's axis. In some designs, the rotor can act to serve as the motor's armature
Armature (electrical engineering)

In electrical engineering, an armature generally refers to one of the two principal electrical components of an electromechanical machine - a Electric motor or Electrical generator, but may also mean the pole piece of a permanent magnet or electromagnet, or the moving iron part of a solenoid or relay....
, across which the input voltage
Voltage

Electrical tension is the potential difference between two points of an electrical or electronic circuit, expressed in volts. It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor....
 is supplied. The stationary part of an electric motor is the stator
Stator

The stator is the stationary part of a rotordynamics system, such as in an electric generator or electric motorDepending on the configuration of a spinning electromotive device the stator may act as the field magnet, interacting with the armature to create motion, or it may act as the armature, receiving its influence from moving...
. A common problem is called cogging torque
Cogging torque

Cogging torque of electrical motors is the torque due to the interaction between the permanent magnets of the rotor and the stator slots of a Permanent Magnet machine....
.

See also

  • Commutator (electric)
    Commutator (electric)

    A commutator is an electricity switch that periodically reverses the Current direction in an electric motor or electrical generator. A commutator is a common feature of direct current rotating machines....
  • Armature (electrical engineering)
    Armature (electrical engineering)

    In electrical engineering, an armature generally refers to one of the two principal electrical components of an electromechanical machine - a Electric motor or Electrical generator, but may also mean the pole piece of a permanent magnet or electromagnet, or the moving iron part of a solenoid or relay....
  • Electric motor
    Electric motor

    An electric motor uses electrical energy to produce mechanical energy, nearly always by the interaction of magnetic fields and current-carrying conductors....
  • Rotordynamics
    Rotordynamics

    Rotordynamics is a specialized branch of applied mechanics concerned with the behavior and diagnosis of rotating structures. It is commonly used to analyze the behavior of structures ranging from jet engines and steam turbines to auto engines and computer disk storage....