• The parts of a generator are same as motor
• Current is generated by spinning central point (rotor – wire coiled around armature) in a stationary (stator – magnet) section
• Change in magnetic flux produces induced current which is transferred through slip rings
• Both ends of the coil are connected to separate slip-rings which co-rotate with the coil

• The parts of a generator are same as motor
• Current is generated by spinning central point (rotor – wire coiled around armature) in a stationary (stator – magnet) section
• Change in magnetic flux produces induced current which is transferred through a single ring

• the two ends of the coil are attached to different halves of a single split-ring which co-rotates with the coil

AC induction motor

• Synchronous
  • Has a rotor and stator
  • Similar to DC
  • Uses slip ring instead of split ring
  • Coils around core produces AC current
  • Polarity changes with current which gives a constant rotation

• Induction
  • Rotor
    • Squirrel cage (copper bars attached to rings) encased in iron (laminated)
    • Eddy currents induced by changing magnetic field and flow from one end to the other
    • They produce an opposing magnetic field which is attracted and dragged along by the initial field.
  • Stator
    • External electro magnet which produces the changing magnetic field
    • 3 phase version has 3 sets of coils surrounding the rotor which creates torque with a rotating field.