Induction motors are the most common pump driver. These pump drivers convert electrical power into mechanical power in the form of torque and rotational speed of the shaft, which couples to and drives the pump. Image 1 identifies some important components of the motor construction. Electrical energy (voltage) is applied to the stator winding connections at a specific frequency, causing current to flow through the stator windings and interact with the rotor. This creates an induced magnetic field, which transmits torque and spins the shaft, supported by the bearings.
For more information on electric motors and their usage in pump systems, refer to the Introduction to Pump Fundamentals course offered by HI University at training.pumps.org.
