SLOT HARMONICS IN CAGE MOTORS DUE TO SATURATION OF A MAIN MAGNETIC CIRCUIT

Mr.Y.Pratap Kumar; Mr.U.Nagulmeera; Mrs.Shakira Sulthana.Sd; Mr.G.Praveen Kumar

doi:10.46243/jst.2023.v8.i03.pp32-33

Authors

Mr.Y.Pratap Kumar
Mr.U.Nagulmeera
Mrs.Shakira Sulthana.Sd
Mr.G.Praveen Kumar

DOI:

https://doi.org/10.46243/jst.2023.v8.i03.pp32-33

Keywords:

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Abstract

This study discusses how saturation of the main magnetic circuit by the fundamental MMF harmonic affects the Fourier spectra of phase currents in cage motors. The concept of a magnetic current's equivalent is used. As a result, we can understand when and why new bars form in stator current spectra by taking into account the effect of all currents on the permeability of the main magnetic circuit. Measurements corroborate the conclusions of our thinking.

References

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Thomson W.T., Barbour A.: “On-line current monitoring and application of a finite element method to predict the level of static air-gap eccentricity in three-phase induction motors, IEEE Trans. on Energy