Comprehensive Study On Induction Motor Condition Monitoring Techniques And Products – A Review

Abstract

Motor systems are critical components and play a vital role in industrial processes. They consume about 50–60% of total plant consumption. Thus, the efficiency of the motors should be maintained. Although they are highly reliable, they are susceptible to many faults due to ageing, improper usage, misuse, and mishandling. Overall, induction motor performance may be affected by the following faults: broken rotor bars, bearings, rotor mass unbalance, bowed rotor, stator winding, rotor winding, single phasing, crawling etc. Any fault can result in high losses with respect to energy consumption, cost and can be dangerous with respect to safety and security. The prior detection of faults and its optimum diagnosis facilitates the industry to operate with the least unexpected maintenance mechanism or industrial shutdown. Various fault diagnosis techniques have been developed over the last two decades. Keeping this in mind, to avoid repetition and to facilitate future research, a brief review is presented. This paper deals about various faults, their  possibilities of occurrences, condition monitoring methods, fault signal extraction techniques, and algorithms for early detection and classification.