Improving Performance of Squirrel Cage Induction Motor Used in Submersible Pumps

This study examines the design of a three-phase induction motor used in submersible pumps. The motor considered is a 380V, 50Hz, 75Hp, 2-pole, 8" three-phase induction motor. The targeted induction motor performance is high efficiency at the rated load. Furthermore, the operating characteristics of the three-phase induction motor, such as starting current, starting torque, breakdown current, breakdown torque, rated current, rated torque, and magnetic flux distribution, were also investigated. The design process began with determining the general geometry of the motor and continued with the calculation of the stator, rotor, and equivalent circuit parameters. Geometric and magnetic constraints were considered during the design process, and priority was given to ensuring that the motor achieves the desired high performance. The motor design simulation was first performed in the Ansys RMxprt module, and then the motor design was simulated in the Ansys Maxwell 2D module and compared with motors from various manufacturers. The resulting motor design geometry has a 4% higher efficiency. Other performance outputs of the motor are also found to be sufficient.