This presentation provides a brief introduction to electric machine types in common use today, common classifications, construction differences and power supply requirements.

This presentation describes the principles and performance of core loss testing in the service center using the loop test method and using a commercial core tester.

The system curve explains why a pump operates at a particular place on the pump curve. This presentations explores the basics of system curves and how changes to the system affect the operating point and pump reliability.

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.

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.   

La norma ANSI/EASA AR100-2020 es una excelente guía para reparar máquinas eléctricas rotativas y su contenido establece criterios de aceptación en cada paso del proceso de reconstrucción o rebobinado.

Choosing an appropriate lead wire for a new stator winding is an important task. The manufacturer’s information is not always available, or the number of circuits or external connection may have been changed, requiring a redesign of the lead wire.  

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.

Overall vibration amplitude levels will indicate if a machine has a problem but determining what that problem could be requires both amplitude and frequency data.  The vibration spectrum provides the most convenient way to analyze those two key vibration parameters. 

This webinar describes the best practice for fitting sleeve bearings in an electric motor.