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Webinar Recordings

Rewind 2024

  • July 2024
  • Number of views: 682
Convention presentation

Revisit EASA's 2024 Convention & Solutions Expo by buying access to recordings of the general sessions and education events streamed from EASA's website! These recordings provide just over 32 hours of training. Downloadable PDFs of slides and technical papers are included!

Cómo efectuar una "prueba de impacto" para resonancia

  • July 2024
  • Number of views: 617
Article

Cuando la resonancia causa una vibración excesiva, es importante identificar la frecuencia natural y la forma modal de la vibración. Una simple prueba de impacto (bump test), realizada a máquina parada, es un buen primer paso para identificar la frecuencia natural.

How to Conduct a “Bump Test” for Resonance

  • July 2024
  • Number of views: 807
Article

When resonance does cause excessive vibration, it is important to identify the natural frequency and the mode shape of the vibration. A simple bump test, conducted with the machine not running, is a good first step in identifying the natural frequency.

Using EASA’s Motor Rewind Data – Version 4

  • June 2024
  • Number of views: 1575
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.

Examining the Causes of High Motor Current

  • April 2024
  • Number of views: 1836
FREE for Members of EASA
Webinar recording

Are you encountering high no-load current or high current with load? This presentation will look into the causes and cures.

Choosing the Right Insulation System for Medium Voltage Rewinds

  • April 2024
  • Number of views: 2297
Article

The insulation system chosen for any rewind should be suitable for the application, the voltage class, and the winding process capability of the service center. In most cases, adherence to “equal to or better than” selection is a good practice.

Escogiendo el sistema de aislamiento adecuado para rebobinados de media tensión

  • April 2024
  • Number of views: 1991
Article

El sistema de aislamiento escogido para cualquier rebobinado debe ser el adecuado para la aplicación, el voltaje y la capacidad del proceso de rebobinado del centro de servicio. En la mayoría de los casos, seleccionar una opción "igual o mejor" es una buena práctica.

Stator Rewinds: When Things Get Tight

  • March 2024
  • Number of views: 3115
FREE for Members of EASA
Webinar recording

When preparing to rewind random or form-wound status, sometimes there just doesn’t seem to be enough room in the stator slot for the desired conductor area and insulation quantities. This presentation looks at balancing stator copper losses against insulation reliability.

Problemas de motores comunes en el centro se servicios

  • February 2024
  • Number of views: 772
Article

Tres de los problemas más comunes en los motores trifásicos por los que somos consultados son:

  1. “El motor toma mucha corriente en vacío”
  2. “La corriente en las tres líneas no está balanceada”
  3. “ El motor trabaja caliente”

Incluso si nunca te has enfrentado a uno de estos problemas, sigue leyendo porque es casi inevitable que lo hagas y querrás saber qué hacer al respecto.

Common Motor Issues in the Service Center

  • February 2024
  • Number of views: 2207
Article

Three of the most common three-phase motor problems we receive inquiries about are:

  1. “The motor is drawing high no-load current.”
  2. “The current of the three line leads is not balanced.”
  3. “The motor is running hot.”

Even if you have never faced one of these issues, read on because it is almost inevitable that you will, and you will want to know what to do about it.