AC Machines
The drill for thick and thin…
The single-phase asynchronous machine has been losing importance ever since the nearly wear-free squirrel-cage motor with frequency-converter feed has been available in mass and at low cost. In low power classes ? e.g. as a washing machine drive ? the ?real? AC motor is being used less and less but as an AC-fed universal motor it is still finding use particularly in the area of very low power categories, for example, in hair dryers or drills. Nevertheless, it is of vital importance for the understanding of some operating characteristics of induction machines.
Leybold Didactic offers a diverse product range of AC motors whose design, connection to an AC power mains as well as starting and operating response are described in detail in the extensive experiment literature. With our program you are laying the foundation for a future-oriented training in electrical machines.
Topics
Motor with capacitor auxiliary winding
– Design and function
– Capacitor auxiliary winding:
Starting capacitor
Operating capacitor
– Starting response:
Current relay
Centrifugal switch
– Load characteristics
– Steinmetz circuit
Motor with auxiliary starting winding
– Design and function
– Starting response:
Current relay
Centrifugal switch
– Load characteristics
Universal motor
– Design and function
– Operation on an AC main
Run-up
Load characteristics
Repulsion motor
– Design and function
– Run-up
– Influence of the carbon brush setting on the operating response