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Webinar Recordings

Common Electrical Tests: What They Are and How They Are Performed

  • April 2023
  • Number of views: 1045
Webinar recording

Assessment of winding condition prior to, during, and following repairs relies on a series of electrical tests. This webinar recording describes four of the most common electrical tests, explains how to conduct them and assess their outcome.

Open Stator Impedance Testing

  • November 2022
  • Number of views: 3230
FREE for Members of EASA
Webinar recording

The open stator impedance test (a.k.a, ball test or dummy rotor test) is used by many service centers as a quality control check before winding treatment and/or a troubleshooting test. This webinar recording reviews test procedures, expected outcomes and incorporating thermal camera imaging.

Cómo Probar y Evaluar la Condición del Núcleo de un Estator con la Prueba de Lazo (“Toroide” o Loop Test)

En Español

  • April 2020
  • Number of views: 13671
FREE for Members of EASA
Webinar recording

¿El motor consume mucha corriente en vacío, aunque los datos del bobinado son correctos? ¿El motor se calienta con carga de forma inusual? Estas son preguntas comunes que pueden ser resueltas verificando la condición del núcleo del estator. En este webinario discutiremos cómo realizar la prueba de lazo en el núcleo de un estator y cómo analizar los resultados obtenidos, proporcionando información sobre los equipos utilizados, consejos para reparar el núcleo del estator y otras pruebas alternativas.

High-Potential Testing of AC Windings

  • December 2019
  • Number of views: 8248
Webinar recording

High-potential testing is routinely used to assess the ground insulation of AC stator windings in-process, after completion of a rewind and post-delivery. This webinar covers types of high-potential tests, testing standards, evaluating test results, and more.