Facebook Twitter LinkedIn YouTube Menu Search Arrow Right Arrow Left Arrow Down Arrow Up Home Arrow Next Arrow Previous RSS Icon Calendar Icon Warning Icon
Know someone that's had an impact on our industry? Nominate them for the EASA Award. SUBMIT NOMINATION

Filter the results

  • Enter one or more words to find resources containing any of the words entered
  • Enter words or phrases between " " to find exact match

Resource categories

Resource Library

Continuación de las pérdidas I2R – pérdidas adicionales en los bobinados del estator

  • July 2019
  • Number of views: 78
  • Article rating: No rating
Booklet

Este artículo proporciona una breve revisión de las pérdidas de I2R del estator y luego explora las pérdidas adicionales de cobre del estator mencionadas originalmente en marzo de 2013 sobre el mismo tema.

Beyond I2R – Additional copper losses in stator windings

  • July 2019
  • Number of views: 98
  • Article rating: No rating
Article

This article provides a brief review of stator I2R losses and then explores the additional stator copper losses originally mentioned in the March 2013 on the same topic.

Familiarizandose con los bobinados fraccionarios concentrados-FSCW

  • March 2019
  • Number of views: 50
  • Article rating: No rating
Article

Los bobinados fraccionarios concentrados, en inglés Fractional-Slot Concentrated Windings (FSCW), han sido empleados durante décadas, principalmente en máquinas pequeñas. Sin embargo, el avance continuo en la electrónica de potencia junto con la necesidad de tener máquinas más eficientes y con mayor densidad de potencia está aumentando el uso de este tipo de bobinados en máquinas de diferentes tipos y tamaños.

Getting to know fractional-slot concentrated windings (FSCW)

  • March 2019
  • Number of views: 75
  • Article rating: No rating
Article

Fractional-slot concentrated windings (FSCW) have been used for decades, primarily in small machines. But continued technological advancement in power electronics along with the need for more efficient and power-dense machines is increasing use of FSCW in a variety of machine types and sizes.

Los programas AC Motor Verification and Redesign y Motor Rewind Data Version 4 trabajan en conjunto para ofrecer más funciones

  • February 2019
  • Number of views: 65
  • Article rating: No rating
Article

Las nuevas funciones del programa AC Motor Verification and Redesign – Version 4 (ACRewind) de EASA mejoran la capacidad de los miembros de EASA para enviar datos originales de forma electrónica e incluirlos en la base de datos Motor Rewind Data – Version 4 (MotorDB).

Parallel circuits: More than meets the eye

  • December 2018
  • Number of views: 91
  • Article rating: No rating
Article

There are benefits and drawbacks to the use of multiple circuits in a 3-phase winding. Whether discussing a random winding or form coil winding, some of the considerations are shared. Topics covered include:

  • Increasing circuits, turns
  • Rotor pullover during starting
  • Increased risks
  • Factors beyond our control

Circuitos en paralelo: Más de lo que parece

  • December 2018
  • Number of views: 40
  • Article rating: No rating
Article

Existen beneficios e inconvenientes al usar circuitos en paralelo en un bobinado trifásico. Sea que estemos hablando de un bobinado de alambre redondo o de pletina (solera), algunas de las consideraciones se comparten. Los temas cubiertos incluyen: Aumentando los circuitos en paralelo y las espiras Descentrado (pull-over) durante el arranque Aumento del riesgo Factores fuera de nuestro control.

2-Speed, 2-Winding Pole Group Connections

  • September 2018
  • Number of views: 78
  • Article rating: No rating
Webinar recording

The topics covered included in this webinar recording:

  • One circuit wye connection — Best , no parallel paths, turns per coil may prevent this
  • Delta or multiple parallel circuits—Produces closed circuits, Circulating currents
  • Open delta (4 wire connection)
  • Permissible connections—Skip pole, adjacent pole
  • Determined by speed combination

Working with odd-turn (unequal-turn) windings

  • July 2018
  • Number of views: 83
  • Article rating: No rating
Article

Manufacturers almost always utilize machine-inserted concentric windings for random-wound, three-phase stators when their processes can facilitate it due to lower manufacturing costs. Many service centers can produce concentric windings too, but the most common practice is to utilize the two-layer lap winding. For form-wound stators, the two-layer lap winding is almost always used by manufacturers and service centers alike. The purpose of this article is to provide some tips for working with odd-turn (unequal-turn) windings, or two-layer windings where the total number of turns per slot is an odd number (e.g., 3,5,7,9…n). In such cases, the top and bottom coil sides must have a different number of turns.

Trabajando con bobinados con espiras diferentes (impares)

  • July 2018
  • Number of views: 36
  • Article rating: No rating
Article

Cuando sus procesos pueden facilitarlo y para rebajar costos de fabricación, los fabricantes casi siempre emplean en los estatores trifásicos de alambre redondo, bobinados concéntricos insertados con máquinas. Muchos centros de servicio también pueden rebobinar bobinados concéntricos, pero la práctica más común es la de utilizar bobinados excéntricos de doble capa. Para los estatores con bobinas pre-formadas, los fabricantes y los centros de servicio utilizan la mayoría de las veces, bobinados excéntricos de doble capa.

La finalidad de este artículo es proporcionar algunos consejos para trabajar con bobinados con espiras diferentes (impares) o con bobinados excéntricos de doble capa donde el número de espiras por ranura es un número impar (Ej. 3,5,7,9…n). En estos casos, los lados superior e inferior de la bobina deben tener un número de espiras diferente.

Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides a great marketing tool for your service center! Use it to provide end users with information that will help them obtain 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

READ MORE ABOUT THE FEATURES AND BENEFITS

EASA Technical Manual

EASA Technical Manual cover

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

ANSI/EASA AR100-2015

ANSI/EASA AR100-2015 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 AR200

EASA AR200: Guide for the Repair of Power and Distribution Transformers cover

Guide for the Repair of Power and Distribution Transformers
This document establishes guidelines for each step of the repair of power transformers, describing record keeping, tests, analysis, and general guidelines for the repair of power transformers.

LEARN MORE