AC MOTORS

AC MOTORS - Department of Defense 1969 - PIN 39947 - AC MOTORS ARE SHOWN IN VARIOUS APPLIANCES AND ELECTRONIC EQUIPMENT TO EMPHASIZE THEIR WIDE USE AND IMPORTANCE. AN ACTUAL MOTOR IS DISASSEMBLED TO POINT OUT EACH PART AND THE SIMPLICITY OF CONSTRUCTION. THE PRINCIPLE OF OPERATION IS DEMONSTRATED, POINTING OUT THE MAGNETIC FIELD AND MAGNETIZATION OF THE ROTOR. A ROTATING MAGNETIC FIELD IS PRODUCED THROUGH A DEMONSTRATION. INDUCTION FROM ROTATING FIELD TO WIRE LOOPS IS DEMONSTRATED, FOLLOWED BY EXPLANATION OF HOW THE ROTOR IS MAGNETIZED. CONCLUDES WITH A DEMONSTRATION OF SLIPPAGE AND ITS RELATIONSHIP TO INTERNAL AND EXTERNAL LOADING, AND AN EXPLANATION OF A TYPICAL TORQUE CURVE.

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