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Simple tests to assure proper DC motor performance

Published: May 2004
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): DC motors, Motor testing

An update on causes of, solutions for shaft currents

Published: April 2004
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Shafts, Stators/windings, Troubleshooting & failure analysis

Replacing vintage variable speed drives with VFDs

Published: April 2004
Author: Jim McKee (deceased), Alabama Electric Motor Service
Technical subject(s): Drives/controls

Una actualización sobre causas y soluciones para las corrientes en el eje

Published: April 2004
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Shafts, Stators/windings, Troubleshooting & failure analysis

Root Cause Failure Analysis

Published: March 2004
Technical subject(s): AC motors, Alignment, Alternators/generators, Balancing, Bearings, Case studies, DC motors, Frame, Lubrication, Miscellaneous, Rotors, Shafts, Stators/windings, Troubleshooting & failure analysis
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Understanding factors that cause shaft failures

Published: March 2004
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): Shafts, Troubleshooting & failure analysis

Applying variable frequency drives to cranes, hoists

Published: February 2004
Author: Gary Braun, Brehob Corp.
Technical subject(s): Cranes/hoists, Drives/controls

Avoiding high no-load amps on rewound motors

Published: February 2004
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): N/A

Coil pitch and the search for the perfect sine wave

Published: January 2004
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Design/theory/application, Stators/windings

Electric motor basics: Why are rotors skewed?

Published: December 2003
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): Design/theory/application, Rotors

Understanding motor temperature rise limits

Published: November 2003
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): N/A

Amplificateurs MLI

Published: October 2003
Author: Bill Colton, Baldor Electric Co., A Member of the ABB Group
Technical subject(s): AC motors, DC motors, Drives/controls

Analyse de l’arbre des moteurs électriques

Published: October 2003
Author: E. Steve Darby (deceased), Darby Electric Co.
Technical subject(s): Repair procedures and tips, Shafts

Assurer l’intégrité mécanique des moteurs électriques

Published: October 2003
Author: L. Douglas Berry (deceased), Diagnostic Technologies, Inc.
Technical subject(s): Bearings, Lubrication, Repair procedures and tips, Shafts

Cause et analyse des défaillances de paliers antifriction dans les moteurs à induction ca

Published: October 2003
Author: Austin Bonnett, EASA Education & Technology Consultant
Technical subject(s): Bearings, Lubrication, Troubleshooting & failure analysis

Cause et analyse des défaillances de paliers et d’arbres de moteurs électriques

Published: October 2003
Author: Austin Bonnett, EASA Education & Technology Consultant
Technical subject(s): Bearings, Troubleshooting & failure analysis

Causes et analyse des défaillances de stators et de rotors des moteurs à induction à courant alternatif

Published: October 2003
Author: Austin Bonnett, EASA Education & Technology Consultant
Author: George C. Soukup, U.S. Electric Motors, a Division of Emerson Electric
Technical subject(s): AC motors, Rotors, Stators/windings, Troubleshooting & failure analysis

Comment prendre les mesures des moteurs et génératrices à enroulement

Published: October 2003
Author: Manuel Garcia, Jr., Consultant, Rotating Electrical Machines
Technical subject(s): Form wound, Repair procedures and tips

De-reeling round magnet wire for best results

Published: October 2003
Author: Benny G. Darsey, Tampa Armature Works, Inc.
Technical subject(s): Service center equipment, Wire

Dépannage sur place d’un moteur à courant continu

Published: October 2003
Technical subject(s): DC motors, Troubleshooting & failure analysis

Directives pour maintenir le rendement d’un moteur durant sa remise en état

Published: October 2003
Technical subject(s): AC motors, Laminations, Motor testing, Repair procedures and tips, Stators/windings

Données relatives aux fils de bobinage circulaires

Published: October 2003
Technical subject(s): Wire

Essai des rotors à cage d’écureuil

Published: October 2003
Technical subject(s): AC motors, Cast rotors, Fabricated rotors, Motor testing, Rotors

Facteurs à considérer pour l’utilisation d’inverseurs à modulation d’impulsions en durée et de moteurs ca à induction à l’intérieur d’un système complet

Published: October 2003
Author: Austin Bonnett, EASA Education & Technology Consultant
Technical subject(s): AC motors, Design/theory/application, Drives/controls

Facteurs de conversion de bobinage concentique á bobinage imbriqué

Published: October 2003
Technical subject(s): AC motors, Stators/windings, Winding connections

Installation de bandes de fibre de verre pré-imprégnées sur un induit

Published: October 2003
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Armatures, Repair procedures and tips

La fabrication d’arbres de rechange pour moteurs électriques

Published: October 2003
Author: E. Steve Darby (deceased), Darby Electric Co.
Technical subject(s): Repair procedures and tips, Shafts

Le rebobinage de moteurs EVV

Published: October 2003
Author: Richard Huber, P. Eng., Richard Huber Engineering, Ltd.
Technical subject(s): AC motors, Drives/controls, Repair procedures and tips

Les enroulements intercalaires: que sont-ils?

Published: October 2003
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): AC motors, Design/theory/application, Stators/windings, Winding connections

Lubrification des roulements des machines électriques

Published: October 2003
Technical subject(s): Ball bearings, Grease lubrication, Lubrication, Lubrication compatibility, Oil lubrication, Roller bearings

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