LN-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
- CD-ROM with Labsoft browser and course software
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.
UniTrain electrical machine courses
UniTrain multimedia courses on electrical machines encompass the entire spectrum of electrical machines. The motors are characterised by their open, accessible stators. These are built onto experiment cards and thus allow a detailed view of the internal design of electrical machines. In addition, the open design makes it possible to exchange rotors quickly and without tools.
Students taking the course are familiarised with the physical principles, the operation, properties and basic circuitry for various machines. In many experiments the machines are put into operation and their electrical properties measured using multimeters and oscilloscope, control units are set up and the safe usage of electrical machines is reinforced.
UniTrain electrical machine courses
UniTrain multimedia courses on electrical machines encompass the entire spectrum of electrical machines. The motors are characterised by their open, accessible stators. These are built onto experiment cards and thus allow a detailed view of the internal design of electrical machines. In addition, the open design makes it possible to exchange rotors quickly and without tools.
Students taking the course are familiarised with the physical principles, the operation, properties and basic circuitry for various machines. In many experiments the machines are put into operation and their electrical properties measured using multimeters and oscilloscope, control units are set up and the safe usage of electrical machines is reinforced.