The deep-well pumps are practically and widely used to pump water up from wells. These pumps are driven by squirrel-cage induction motors where the pump is directly connected with the induction motor it drives. They form a pump-motor set or a deep-well set. Economioally, the cost of digging a well proportionates with the diameter of the hole opening. This diameter is related to the deep-well set dimensions. Whenever the dimensions of the deep-well set are small, the cost of digging a hole will be notably less. From here, in this research we shall test the possibility of desiging a deep-well induction motor with a voltage of f =150 Hz frequency in a small size. and in trifold speed of the induction motor which has same power and functions as the motor with a voltage of f = 50 Hz frequency and where the essential parameters of the motor aren’t worse than the motor with f = 50 Hz Frequency.