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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

Normes relatives à l’équilibrage dynamique

Published: October 2003
Author: John Harrell, On-Site Training Services
Technical subject(s): Balancing

Paliers de butée antifriction pour moteurs verticaux

Published: October 2003
Author: Austin Bonnett, EASA Education & Technology Consultant
Technical subject(s): AC motors, Bearings, Repair procedures and tips

Porte-balais (ou supports) et performances des balais de carbone (ou brosses)

Published: October 2003
Author: Jeff D. Koenitzer, P.E., Helwig Carbon Products, Inc.
Technical subject(s): Brushes, DC motors, Design/theory/application

Procédés de vérification des jeux axiaux dans les dispositifs à roulements

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

Procedures for winding synchronous poles

Published: October 2003
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Synchronous motors

Rédaction de procédures: Cet exercice exige un peu de temps, mais les résultats en valent la peine

Published: October 2003
Author: Dan Dederer, Enertech Solutions, Inc.
Technical subject(s): Repair procedures and tips

Rembobinage des moteurs et génératrices à enroulement

Published: October 2003
Author: Manuel Garcia, Jr., Consultant, Rotating Electrical Machines
Technical subject(s): AC motors, Alternators/generators, Form wound, Lacing/bracing, Motor testing, Repair procedures and tips, Stators/windings, Winding connections, Winding insulation

Réparation des paliers à coussinet

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

Résolution des problèmes de vibrations de moteurs – approche analytique

Published: October 2003
Author: William R. Finley, Industrial Products Div., Siemens Energy & Automation, Inc.
Author: Mark M. Hodowanec, Industrial Products Div., Siemens Energy & Automation, Inc.
Author: Warren G. Holter, Industrial Products Div., Siemens Energy & Automation, Inc.
Technical subject(s): Troubleshooting & failure analysis, Vibration

Systèmes d’isolation UL 1446

Published: October 2003
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): Winding insulation

Test du noyau de stator

Published: October 2003
Technical subject(s): Laminations, Motor testing

The potential pitfalls of parallel circuits

Published: September 2003
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): Winding connections

Understanding alternating current generators

Published: September 2003
Author: George Stratton, G.E. Jones Electric Co., Inc.
Technical subject(s): Alternators/generators

Understanding bearing vibration frequencies

Published: September 2003
Author: Dave Felton, L&S Electric, Inc.
Technical subject(s): Bearings, Vibration

A closer look at high potential testing of rotating electrical machine windings

Published: August 2003
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): Motor testing

Technical cost-saving tips to improve profit

Published: July 2003
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): N/A

Special care needed to preserve stored motors

Published: June 2003
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): Motor storage

Proper use of the core tester

Published: May 2003
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): AC motors, Motor testing

Counterfeit bolts: Tips on how to avoid them

Published: April 2003
Author: Richard Huber, P. Eng., Richard Huber Engineering, Ltd.
Technical subject(s): Miscellaneous, Safety

Troubleshooting tips for armature rewinds

Published: April 2003
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Armatures, Troubleshooting & failure analysis

Consider motor load requirements, applications

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

Como determinar la capacidad de carga de un rodamiento y que hacer cuando sea excesiva

Published: February 2003
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): Bearings, Design/theory/application

How to determine bearing load capability and what to do when it's excessive

Published: February 2003
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): Bearings, Design/theory/application

Encoders, resolvers provide important feedback

Published: January 2003
Author: Kevin J. Miller, Apparatus Repair & Engineering, Inc.
Technical subject(s): Drives/controls

Interleaved windings provide useful alternative

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

Explosion-proof motors need special attention

Published: December 2002
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): N/A

Boring and sleeving bearing housings in a vertical milling machine

Published: November 2002
Author: Robert Giesen, B & B Electric Motor Co.
Technical subject(s): Repair procedures and tips, Service center equipment, Sleeve bearings

Fan law knowledge can help performance

Published: October 2002
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): AC motor cooling, DC motor cooling, Design/theory/application, Fans

Variables a Considerar Cuando Cambiamos La Frecuencia de Un Motor Entre 50 y 60 Hz

Published: August 2002
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): Design/theory/application, Stators/windings

Correctly interpreting the DC nameplate

Published: July 2002
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): DC motors, Nameplates

Troubleshooting variable frequency drives

Published: July 2002
Author: George Stratton, G.E. Jones Electric Co., Inc.
Technical subject(s): Drives/controls, Troubleshooting & failure analysis

Shaft couplings: Types and applications

Published: June 2002
Author: Ken Gralow, Gray Electric Co.
Technical subject(s): Couplings

Test run tips: Common causes for high no-load current on rewound motors

Published: June 2002
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): Motor testing

The importance, benefits of preheating motor windings prior to impregnation

Published: May 2002
Author: Tom Bishop, P.E., EASA Senior Technical Support Specialist
Technical subject(s): Repair procedures and tips, Service center equipment, Winding insulation

Commutator tips to extend DC motor life

Published: April 2002
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Commutators, Repair procedures and tips

A closer look: Winding protection device can prevent permanent damage to motor

Published: March 2002
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): N/A

Core loss testing: Tips for special cases

Published: February 2002
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Motor testing

Power factor: What it is, why it's important

Published: January 2002
Author: Cyndi Nyberg Esau, Former EASA Technical Support Specialist
Technical subject(s): Design/theory/application

Hacerlo es sencillo: Siga estos pasos para calcular la carga real de un motor

Published: December 2001
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Design/theory/application

Keeping it simple: Follow these steps to determine motor's actual load

Published: December 2001
Author: Chuck Yung, EASA Senior Technical Support Specialist
Technical subject(s): Design/theory/application

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