Abstract
The main type of electric motors used in the electric drive of technological processes are induction motors with a squirrel-cage rotor. With proper operation, they have a higher MTBF (Mean Time Between Failures). It was found that one of the common causes of engine failure is bearing wear and, as a result, increased rotor eccentricity. We used the oscillating amplitude of the rotor speed in the transient state as a diagnostic parameter. The paper presents a method for this troubleshooting, a block scheme and appearance of the experimental installation, and a single-line diagram of the transmitter for measuring rpm. The experience has established the optimal ADC sampling frequency for experimentation to be carried out. The results of studies of changes in the rotor speed oscillating from time to time under load at rotor eccentricity have been given.
Published Version
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