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Stator current and motor efficiency as indicators for different types of bearing faults in induction motors / Frosini, Lucia in IEEE transactions on industrial electronics, Vol. 57 N° 1 (Janvier 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 1 (Janvier 2010) . - pp. 244 - 251 Titre : Stator current and motor efficiency as indicators for different types of bearing faults in induction motors Type de document : texte imprimé Auteurs : Frosini, Lucia, Auteur ; Bassi, Ezio, Auteur Article en page(s) : pp. 244 - 251 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Bearings  Condition  monitoring  Efficiency  Fault  diagnosis  Fourier  transforms  Induction  motors  Industrial-power-system  maintenance  Motor-current  signature  analysis  Spectral  analysis  Vibration Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a new approach to use stator current and efficiency of induction motors as indicators of rolling-bearing faults. After a presentation of the state of the art about condition monitoring of vibration and motor current for the diagnostics of bearings, this paper illustrates the experimental results on four different types of bearing defects: crack in the outer race, hole in the outer race, deformation of the seal, and corrosion. The first and third faults have not been previously considered in the literature, with the latter being analyzed in other research works, even if obtained in a different way. Another novelty introduced by this paper is the analysis of the decrease in efficiency of the motor with a double purpose: as alarm of incipient faults and as evaluation of the extent of energy waste resulting from the lasting of the fault condition before the breakdown of the machine. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5166499 [article] Stator current and motor efficiency as indicators for different types of bearing faults in induction motors [texte imprimé] / Frosini, Lucia, Auteur ; Bassi, Ezio, Auteur . - pp. 244 - 251. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 1 (Janvier 2010) . - pp. 244 - 251 Mots-clés : Bearings  Condition  monitoring  Efficiency  Fault  diagnosis  Fourier  transforms  Induction  motors  Industrial-power-system  maintenance  Motor-current  signature  analysis  Spectral  analysis  Vibration Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a new approach to use stator current and efficiency of induction motors as indicators of rolling-bearing faults. After a presentation of the state of the art about condition monitoring of vibration and motor current for the diagnostics of bearings, this paper illustrates the experimental results on four different types of bearing defects: crack in the outer race, hole in the outer race, deformation of the seal, and corrosion. The first and third faults have not been previously considered in the literature, with the latter being analyzed in other research works, even if obtained in a different way. Another novelty introduced by this paper is the analysis of the decrease in efficiency of the motor with a double purpose: as alarm of incipient faults and as evaluation of the extent of energy waste resulting from the lasting of the fault condition before the breakdown of the machine. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5166499