AC induction motors have a squirrel cage rotor.
Does the magnetic field have to cross the rotor or does it run around the squirrel cage?
I suspect it crosses the rotor due to the voltages induced in the squirrel cage.
I am looking at rather large motors and having a rotor that is 30" in diameter is a bit heavy.
If the field has to cross the rotor then I may go to a wound rotor.
That way I can make the rotor appear to be a magnetic core without having a solid rotor.
But by doing that would I have to switch from AC inverter control to DC brushless control?
Basically the end is a ring motor more or less....
Thanks for any advice.
JC
Does the magnetic field have to cross the rotor or does it run around the squirrel cage?
I suspect it crosses the rotor due to the voltages induced in the squirrel cage.
I am looking at rather large motors and having a rotor that is 30" in diameter is a bit heavy.
If the field has to cross the rotor then I may go to a wound rotor.
That way I can make the rotor appear to be a magnetic core without having a solid rotor.
But by doing that would I have to switch from AC inverter control to DC brushless control?
Basically the end is a ring motor more or less....
Thanks for any advice.
JC