A Review of Condition Monitoring and Fault Diagnosis Methods for Induction Motor

Induction motors are an indispensible commodity in modern manufacturing and service industries. These motors are reliable, rugged, and require negligible maintenance. However, due to undue thermal mechanical and electrical stresses, these may fail prematurely. An induction motor applied for critical application, if fails may cause loss of productivity and huge amount of capital loss to company. Over the last 20 years, a number of condition monitoring methods and systems have evolved to reduce their abrupt failure. This paper provides a comprehensive insight into various popularly known techniques for fault diagnosis of induction motors. Review of state of the art techniques for condition monitoring, evolving techniques and recent advancements are discussed along with some case studies.