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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: 2864
  • Article rating: No rating

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!

Partial Discharge in Form Coil Stator Windings

  • May 2026
  • Number of views: 1653
  • Article rating: 3.0
FREE for Members of EASA

This presentation covers what partial discharge is, how partial discharge damages insulation, and some testing methods.   

Encontrando el centro: Análisis profundo de la solución de problemas del centro magnético en equipos rotativos

  • December 2025
  • Number of views: 1541
  • Article rating: No rating

En el mundo de la maquinaria rotativa, términos como balanceo, holgura y alineación son habituales para ingenieros y técnicos. Pero hay un concepto que a menudo se esconde a simple vista, crucial para el rendimiento, la longevidad y la seguridad: la alineación del centro magnético.

Finding Center: A Deep Dive into Troubleshooting Magnetic Center Issues in Rotating Equipment

  • December 2025
  • Number of views: 3817
  • Article rating: No rating

In the world of rotating machinery, terms like balance, clearance and alignment are second nature to engineers and technicians. But one concept often hides in plain sight—critical to performance, longevity and safety—magnetic center alignment.

Rebobinando Motores Trifásicos Inverter Duty

  • October 2025
  • Number of views: 2896
  • 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.

Seeing the Invisible: Partial Discharge Imaging for Large Motors and Generators

  • July 2025
  • Number of views: 3738
  • Article rating: No rating

For service professionals working with large electric motors and generators, machines with voltage ratings 5 kV and higher can be vulnerable to invisible threats of partial discharge (PD). Corona and PD activity have long been a challenge to detect before failure occurs. Traditionally, detecting these issues required indirect methods like radio interference voltage (RIV) testing, ultrasonic detection or offline insulation tests. But recent advances in partial discharge imaging—sometimes called corona cameras—are giving engineers and technicians a powerful new tool: the ability to see electrical discharge activity directly and in real time. 

Viendo lo Invisible: Imágenes de Descargas Parciales en Motores y Generadores Grandes

  • July 2025
  • Number of views: 2077
  • Article rating: 5.0

Para los profesionales que trabajan con grandes motores y generadores eléctricos, las máquinas con tensiones nominales de 5 kV o superiores pueden ser vulnerables a amenazas invisibles de descargas parciales (DP). Detectar la actividad corona y las DP antes de que se produzca un fallo ha sido un desafío durante mucho tiempo. Tradicionalmente, detectar estos problemas requería métodos indirectos como pruebas de voltaje de radio interferencia (RIV), detección ultrasónica o pruebas de aislamiento a máquina parada. Sin embargo, los recientes avances en imágenes de descargas parciales, a veces llamadas cámaras corona, brindan a ingenieros y técnicos una nueva y poderosa herramienta: la capacidad de ver la actividad de descargas eléctricas directamente y en tiempo real.

Rewind 2024

  • July 2024
  • Number of views: 7636
  • Article rating: No rating

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!

Examining the Causes of High Motor Current

  • April 2024
  • Number of views: 6666
  • Article rating: No rating
FREE for Members of EASA

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

How to Solve A Customer's Problem

  • August 2023
  • Number of views: 1692
  • Article rating: No rating
FREE for Members of EASA

This webinar guides the viewer through what questions to ask a customer when trying to determine cause of failure. Whether mechanical or electrical in nature, there is a logical process to successfully solving a problem.

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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