for example, if you took a 3phase 230V 5hp AC induction motor rated at 3450rpm @ 60Hz, and you fed it 3phase 36VAC or 38VAC 60Hz, what would happen? would it just lack torque?
which leads me to another question, what happens when you overload an AC induction motor? I've never seen it happen. In a dc motor, it will draw more amps and the speed will droop, but since the speed of the AC motor is determined by frequency, I'm assuming as you inrease the load higher and higher, it would just get to a point where the rotating magnetic field outruns the rotor, and then what happens?
which leads me to another question, what happens when you overload an AC induction motor? I've never seen it happen. In a dc motor, it will draw more amps and the speed will droop, but since the speed of the AC motor is determined by frequency, I'm assuming as you inrease the load higher and higher, it would just get to a point where the rotating magnetic field outruns the rotor, and then what happens?