An induction motor refers to an alternate current electric motor for which the electric current is required to produce torque in the rotor through electromagnetic induction from the magnetic field of the stator winding. Three phase induction motors play an important role in various industries because of their benefits over other electrical motors. As a result, there is a high demand for their dependable and secure operation. Any breakdowns or faults in the motor might result in longer downtime and can cause significant maintenance and revenue losses, requiring early fault detection for motor protection. Condition monitoring of induction motor is a new technology for detecting potential faults online. It entails taking measurements on a machine, while it is in operating condition for detecting faults. The goal of online condition monitoring is to lower maintenance costs and unexpected failure. This book outlines the applications of induction motors as well as their condition monitoring and fault diagnosis. It will serve as a valuable source of reference for graduate and post graduate students.