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DISCOUNTED WEBINAR RECORDING BUNDLES AVAILABLE LEARN MORE

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Webinar Recordings

AC Electric Motor Design

  • April 2020
  • Number of views: 239
Webinar recording bundle

A special discounted collection of 6 webinar recordings focusing on AC electric motor design.

Just $30 for EASA members!

DC Motor Electrical Procedures

  • April 2020
  • Number of views: 233
Webinar recording bundle

A special discounted collection of 6 webinar recordings focusing on DC motor electrical procedures.

Just $30 for EASA members!

Switched Reluctance Motor Basics

  • March 2020
  • Number of views: 430
Article

Service centers are seeing an increase in the number of SRMs received for repair, and some of the technicians encountering them are unfamiliar with how they work. As with any other rotating machine, a basic understanding of operating principles can be useful in troubleshooting and repair. One of the most critical things for service center personnel to understand upfront is that these machines cannot be operated without a special drive, which typically would need to be supplied by the end-user or the manufacturer.

Fundamentos de los Motores de Reluctancia Conmutada

  • March 2020
  • Number of views: 320
Article

Los centros de servicio están notando un incremento en el número de SRMs que reciben para reparar y algunos de los técnicos no están familiarizados con su funcionamiento. Como cualquier otra máquina rotativa, un conocimiento básico de los principios de funcionamiento puede ayudar a detectar problemas y durante la reparación. Uno de los puntos más críticos para el personal del centro de servicios es entender de antemano que estas máquinas no pueden ser operadas sin un drive especial, el cual normalmente necesita ser suministrado por el usuario final o el fabricante.

Emerging Motor Technologies

  • February 2020
  • Number of views: 792
FREE for Members of EASA
Webinar recording

Following the squirrel cage induction motor, what will come next? This webinar provides an overview of potential successor technologies.

Principles of Medium & Large AC Motors, 1st Edition - IEC

  • February 2020
  • Number of views: 1256
Book

This manual covers horizontal and vertical squirrel-cage induction motors in the 300 to 5,000 horsepower range, low- and medium-voltage. Most of the principles covered apply to other sizes as well. This manual focuses primarily on IEC motors and standards.

Considerations for random to form winding conversions

  • December 2019
  • Number of views: 662
Article

With a steady increase in random wound AC motor sizes and the obvious superiority of the form coil winding, one area where we can help improve customers' motor reliability is by redesigning those large random wound motors to accept form coils. Most repairers would agree that machines rated larger than 600 hp (450 kW) should be designed as form coil machines. Likewise, those rated over 2 kV will be much more reliable as form coil machines.

No one wants to rewind a motor using 60 #14 AWG (62- 1.6 mm) wires in hand. With an abundance of niche suppliers of stator laminations, the cost and practicality of converting a random wound motor to form coil are available to nearly all service centers. Replacement laminations can be punched, laser-cut or water-cut, and supplied with very reasonable delivery times.

Consideraciones para convertir bobinados de alambre redondo a pletina (solera)

  • December 2019
  • Number of views: 629
Article

Con el aumento continuo de los tamaños de los motores CA y la obvia superioridad de los devanados con bobinas preformadas (pletina o solera), un área en la que podemos ayudar a mejorar la confiabilidad de los motores de nuestros clientes es rediseñando estos motores grandes de alambre redondo para que acepten bobinas preformadas. La mayoría de los reparadores estarían de acuerdo en que las máquinas de alambre redondo por arriba de 600 hp (450 kW) deberían rediseñarse con bobinas preformadas. Así mismo, aquellas con tensiones nominales superiores a 2 kV serían más confiables con bobinas de pletina.

Nadie quiere rebobinar un motor con 60 #14 AWG (62- 1.6 mm). Con la abundancia de proveedores especializados en laminaciones de estatores, el costo y la practicidad para convertir motores de alambre redondo a pletina está al alcance de casi todos los centros de servicio. Las laminaciones para reemplazar el núcleo pueden ser troqueladas o cortadas con láser o agua y entregadas en tiempos muy razonables.

Air Gap: What Is It, What Does It Do, and Why Is It Important?

  • October 2019
  • Number of views: 2767
Webinar recording

The physical air gap between the rotor or armature and the stator or field frame is complex and plays a critical role in the performance of AC and DC machines. Most repairers do not realize how little they understand about this subject.

Converting motors from horizontal mount to vertical mount

Examine mechanical factors that should be considered when applying a horizontal ball-bearing motor in a vertical mounting position

  • October 2019
  • Number of views: 854
Trade press article — Plant Services

Occasionally an end user wants to take a motor designed for horizontal mounting and use it in a vertical position. This article addresses some of the key mechanical factors that should be considered when applying a horizontal ball-bearing motor in a vertical mounting position.