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Common VFD and Motor Driven System Misapplications

  • July 2023
  • Number of views: 3049
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

Variable frequency drives (VFDs) are more common than ever before.  Sometimes when a VFD is introduced into a motor driven system, system reliability suffers. This recording addresses some of the common factors that reduce motor driven system reliability and how to correct them.   

EASA Technical Manual

  • September 2022
  • Number of views: 27845
  • Article rating: .5
FREE for Members of EASA

Revised September 2022!
EASA's most comprehensive technical document is available FREE to EASA members. Download the complete manual or just the sections you're interested in.

Managing Voltage Stress for VFD Applications on IEC Motors

  • June 2022
  • Number of views: 4140
  • Article rating: 5.0

In today’s global economy, it is quite possible to get electric motors from all over the world. Most electric motors that are 500 hp (373 kW) or less will conform to one of two basic manufacturing standards; NEMA or IEC. The intent of this article is to focus on IEC standards for managing voltage stress in VFD applications as it pertains to the motor’s windings.

Manejando los Esfuerzos de Voltaje en Aplicaciones VFD con Motores IEC

  • June 2022
  • Number of views: 4274
  • Article rating: No rating

En la economía global actual, es posible adquirir motores eléctricos fabricados en todo el mundo. La mayoría de los motores eléctricos de 500 HP (373 kW) o menos se ajustarán a una de las dos normas básicas de fabricación; NEMA o IEC. La intención de este artículo es centrarse en las normas IEC para gestionar la sobre tensión en aplicaciones con VFD en lo que respecta a los devanados del motor.

Accessorizing Your VFD for Proper Operation and Power Quality

  • July 2021
  • Number of views: 7982
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

This webinar goes through the basics of what accessories may be needed for proper VFD control and power quality add-ons to improve motor driven system reliability.

Rewind 2021

Recordings and Handouts from the 2021 EASA Convention - Fort Worth, TX

  • June 2021
  • Number of views: 10775
  • Article rating: 5.0
Convention presentation

Revisit EASA's 2021 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 22 hours of training. Downloadable PDFs of slides and technical papers are included!

Inverter Duty Motor Rewinding

  • April 2021
  • Number of views: 13350
  • Article rating: 1.7
FREE for Members of EASA
Webinar recording

This webinar recording reviews the failures associated with 3-phase motors on Variable Frequency Drives (VFDs) and how to rewind to limit future failures.

Low Voltage AC VFDs and Basic Control Methods

  • January 2021
  • Number of views: 8962
  • Article rating: 1.7
FREE for Members of EASA
Webinar recording

This webinar recording explains the basics of low voltage AC drive types and control methods.

Fact or Myth: Common Misconceptions About Motors

  • January 2021
  • Number of views: 8076
  • Article rating: 3.7

Here is a random collection of some relatively common misconceptions about three-phase squirrel cage motor performance characteristics.

Mito o Realidad: Conceptos Errados Comunes Sobre Motores Eléctricos

  • January 2021
  • Number of views: 7132
  • Article rating: No rating

Aquí tenemos una colección de algunos de los conceptos errados más comunes acerca de las características de desempeño de los motores eléctricos tipo jaula.

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



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.


ANSI/EASA AR100-2020

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.



EASA Technical Manual

EASA Technical Manual cover

Revised May 2024
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.