Item No.: CO4204-7T

Course Electric Machines 2: Asynchronous machines

Includes:

  • 1 Experiment card with stator and three-phase winding, run-up and operating capacitor and temperature sensor with constant current source
  • 3 Rotors: squirrel-cage, permanent-magnet, rotor with open winding
  • Stroboscope with extra-bright LED
  • Labsoft browser and course software
  • Storage case

Course contents:

  • Identifying the most common applications of rotating field machines
  • Explanation of the principles of electromagnetic induction
  • Explanation of the design and function of rotating field machines
  • Explanation of the differences between motor and generator operation
  • Introduction to the key components of a rotating field machine, the rotor and stator
  • Experimental demonstration of how torque arises and of the generator principle
  • Creation of a rotating magnetic field by rotating field machines: experimental demonstration of a rotating magnetic field in the stator
  • Introduction to the principle of a 3-phase transformer
  • Investigation by measurement of three-phase machines in star and delta configurations.
  • Measurement of phase-to-phase and line-to-line voltage and current
  • Measurement of rotor voltage and current
  • Interpreting a rating plate
  • Nominal data and characteristic parameters, power factor, pole-pairs, torque, speed and slip
  • Design and function of asynchronous machines
  • Investigation of a squirrel-cage rotor, frequency response characteristics, reversal of rotation
  • Investigation by measurement of the operating response of a synchronous machine with a permanent magnet rotor
  • Introduction to the principle of a capacitor motor (Steinmetz circuit)
  • Investigation by measurement of the operating response of a capacitor motor
  • Explanation of the importance of temperature monitoring in electrical machines
  • Measurement of winding temperature in running machines
  • Fault simulation (4 simulated faults activated by relay)
  • Course duration. 5.5 h approx.