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Questions?

For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

Rewind 2026

  • June 2026
  • Number of views: 2863
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Revisit EASA's 2026 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!

EASA Technical Manual

  • May 2026
  • Number of views: 42371
  • Article rating: .8
FREE for Members of EASA

Revised May 2026!
EASA's most comprehensive technical document is available FREE to EASA members. Download the complete manual or just the sections you're interested in.

Variable Speed Drive for Pump Testing

  • November 2025
  • Number of views: 3307
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Equipping a pump test facility for variable speed operation can provide greater flexibility and expand opportunities to evaluate pump performance.

Variador de velocidad para pruebas de bombas

  • November 2025
  • Number of views: 2275
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Emplear velocidad variable durante las pruebas puede brindar mayor flexibilidad y ampliar las oportunidades para evaluar el rendimiento de las bombas.

Filtering High-Frequency Pulse Width Modulation Effects in Electric Motors: From Problem to Solution

  • November 2025
  • Number of views: 3341
  • Article rating: 2.5

While highly effective for control, pulse width modulation introduces high-frequency transients that can compromise motor reliability if left unchecked.

Filtrado de los efectos de modulación de ancho de pulso de alta frecuencia en motores eléctricos: Del problema a la solución

  • November 2025
  • Number of views: 1669
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Si bien es muy eficaz para el control, la PWM introduce transitorios de alta frecuencia que, si no se controlan, pueden comprometer la confiabilidad del motor.

Rebobinando Motores Trifásicos Inverter Duty

  • October 2025
  • Number of views: 2895
  • Article rating: No rating
FREE for Members of EASA

Este webinario cubrirá los fallos asociados con los motores trifásicos accionados con variadores electrónicos de frecuencia (VFDs) y como rebobinarlos, rebajando las posibilidades de fallos futuros.

Common VFD and Motor Driven System Misapplications

  • July 2023
  • Number of views: 7428
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FREE for Members of EASA

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.   

Managing Voltage Stress for VFD Applications on IEC Motors

  • June 2022
  • Number of views: 13662
  • Article rating: 3.0

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: 8266
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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.

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.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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