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Webinar Recordings

ANSI/EASA Standard AR100-2025: Recommended Practice for the Repair of Rotating Electrical Apparatus

  • January 2026
  • Number of views: 365
Booklet

ANSI/EASA AR100 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.

Concentric to Lap Conversions

  • December 2025
  • Number of views: 621
FREE for Members of EASA
Webinar recording

This presentation covers the important details for a properly converting a 3 phase winding from concentric to lap.

Identificando cables no marcados en maquinas de 12 terminales con un solo devanado

  • December 2025
  • Number of views: 409
Article

Identificar los cables sin marcar en los motores trifásicos es una tarea habitual para los técnicos de los centros de servicio. Este artículo presenta un método para asignar números a los cables de una máquina de 12 cables con los terminales sin marcar.

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

  • December 2025
  • Number of views: 415
Article

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.

Identifying Unmarked Leads in 12-Lead Machines with One Winding

  • December 2025
  • Number of views: 956
Article

Identifying unmarked leads in three-phase motors is a common task for service center technicians. This article provides one way to assign lead numbers for a 12-lead machine with unmarked leads.

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

  • December 2025
  • Number of views: 834
Article

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.

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

  • November 2025
  • Number of views: 1663
Article

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

Resolving Phantom Oil Leaks in Vertical Machines

  • November 2025
  • Number of views: 918
Article

A tilted or improperly sized oil standpipe can allow oil to migrate upward along the pipe’s wall when the motor is in operation, leading to leakage, loss of lubrication and potential bearing damage. This issue can be overlooked during assembly or inspection, but a few simple checks can prevent costly problems. 

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: 505
Article

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: 1313
FREE for Members of EASA
Webinar recording

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.