the shaft turns slower all.. but my only doubt is how is the obvious assessment made that when voltage drops frequency drops(i read it in a textbook)....
In AC motor, normally the drop in frequency causes the voltage drop, not in reverse. The frequency drop comes from the supplying line i.e. when the supplying generator slows down. The motor shaft turns slower, directly proportional to frequency drop, not less, while still supplying load. When the load is higher, the motor consume more current. The higher the load, the higher the consumed current. The overheating occurs because the current exceeds the current carrying capacity of the winding wire
Unless it refers to frequency of the motor's rotation, and not supply frequency. That would make sense. With ohms law and all that.
