Abstract
DETECTION OF BALL BEARING FAULT IN INDUCTION MOTOR USING MCSA AND HARMONIC ANALYSIS
Sumit S. Kahare*, Devendra P. Indapawar*, Ankush I. Sontakke*, Subodh L. Nagrare*, Dr. Z. J. Khan, Prof. P. G. Asutkar
ABSTRACT
Induction motor is one of the important part of industry. Therefore, induction motor is called the “horse-force” of the industry. Failure of induction motor leads to industry shut down and huge economic loss to the industry. The faults in induction motor are classified as electrical and mechanical faults. Bearing fault account for 40% fault in the induction motor. Bearing fault deterioration is the main cause of induction motor failure in the existing system. This paper presents the analysis and the detection of bearing fault using motor current signature analysis and harmonic FFT analysis. The experimentation is carried on 1 hp, 3 phase, 4 pole and 1500 rpm induction motor with healthy, dry and damaged bearing on No load and Rated load conditions. From experimentation it can be concluded that during faulty conditions three phase voltages, three phase current, mechanical power, torque, electrical power and power factor increases whereas speed and efficiency of electric motor decreases. Harmonic FFT analysis shows that from healthy to faulty conditions the harmonic contents increases up to 21th harmonics.
[Full Text Article] [Download Certificate]