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Bare Core Redesign with Motor Winding Workbench

  • November 2026
  • Number of views: 178
  • Article rating: No rating
Article

Occasions arise where original winding data is not available; it may have been recorded incorrectly, or a different service center may have stripped the core but not completed the repair. In those cases, the service center must come up with a new “bare core” winding design. Motor Winding Workbench has some specific features to address this need.

Rediseño de Motores con núcleos sin datos usando Workbench

  • November 2026
  • Number of views: 126
  • Article rating: No rating
Article

Por lo general, los datos del bobinado se registran al momento en que se retira el alambre del núcleo. Sin embargo, a veces estos no están disponibles, han sido anotados de forma incorrecta, u otro centro de servicio ha retirado el bobinado del núcleo sin llegar a completar la reparación. En tales situaciones, el centro de servicio debe efectuar un diseño nuevo del bobinado partiendo del «núcleo sin datos» y Workbench cuenta con las funciones específicas para cubrir esta necesidad.

Document Before You Strip

A Repeatable Method for Documenting Complex Three-Phase Windings

  • November 2026
  • Number of views: 148
  • Article rating: No rating
Article

When rewinding a typical three-phase motor, an experienced motor winder can usually identify the winding pattern quickly. However, there are also motors where anticipating a repeating pattern can get a repair center in trouble.

Antes de Retirar los Devanados

Un Método Reproducible para Documentar Devanados Trifásicos Complejos

  • November 2026
  • Number of views: 54
  • Article rating: No rating
Article

Al rebobinar un motor trifásico convencional, un técnico experimentado suele identificar rápidamente el patrón del bobinado. No obstante, existen motores en los que dar por sentado que se seguirá un patrón repetitivo puede acarrearle problemas a un centro de servicio.

Concentric to Lap Conversions

  • December 2025
  • Number of views: 3323
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

This presentation covers the important details for a properly converting a 3 phase winding from concentric to lap.

Identifying Unmarked Leads of Three-Phase Motors

  • October 2024
  • Number of views: 8572
  • Article rating: 2.3
FREE for Members of EASA
Webinar recording

This presentation reviews procedures that explain how to identify unmarked leads of three-phase motors with one or two windings.

Using EASA’s Motor Rewind Data – Version 4

  • June 2024
  • Number of views: 8788
  • Article rating: 3.3
FREE for Members of EASA
Webinar recording

Learn how to effectively use EASA's live, ever-expanding online database of more than 250,000 windings.

Lead Wire Sizing for Three-Phase Machines

  • August 2023
  • Number of views: 14087
  • Article rating: 3.0
Article

EASA recommends using the lead wire specified by the original equipment manufacturer (OEM) whenever possible. If not available, some guidance is provided in section 6 of the EASA Technical Manual and an online calculator is available to determine a minimum recommended size based on temperature rating, expected current, number of leads and type of connection. This article will describe the calculator’s function.

Dimensionamiento de cables de salida para máquinas trifásicas

  • August 2023
  • Number of views: 6939
  • Article rating: 5.0
Article

EASA recomienda usar el cable de salida especificado por el fabricante original del equipo. Si no está disponible, la sección 6 del Manual técnico de EASA proporciona orientación al respecto y hay una calculadora en línea disponible en go.easa.com/calculators para determinar el tamaño mínimo recomendado según la clasificación de temperatura, la corriente esperada, la cantidad de cables y el tipo de conexión. Este artículo describirá la función de la calculadora.

EASA Winding Database and Verification and Redesign Program: An Easy-to-Use Solution When Faced with Bare Core Winding Challenges

  • July 2023
  • Number of views: 8652
  • Article rating: 2.5
Article

Occasions arise where original winding data is not available. It may have been recorded incorrectly or a different service center may have stripped the core but not completed the repair. In those cases, the service center must come up with a new “bare core” winding design. EASA's redesign software has some specific features to address this need.

Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

This booklet covers topics such as:

  • Installation, startup and baseline information
  • Operational monitoring and maintenance
  • Motor and baseline installation data
  • How to read a motor nameplate
  • Motor storage recommendations

LEARN MORE AND DOWNLOAD MÁS INFORMACIÓN Y DESCARGAR BUY PRINTED COPIES

READ MORE ABOUT THE FEATURES AND BENEFITS

EASA/AEMT Rewind Study

EASA Rewind Study cover

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

DOWNLOAD THE FULL RESULTS

ANSI/EASA AR100-2025

ANSI/EASA AR100-2025 cover

Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

DOWNLOAD - ENGLISH

DESCARGAR - ESPAÑOL

EASA Technical Manual

EASA Technical Manual cover

Revised October 2025
The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.

VIEW & DOWNLOAD