How today’s advanced electric motor testing technologies expose motor failure

The increasingly sophisticated motor testing technologies used today quickly identify anomalies and mechanisms leading to motor failure. In this presentation, Don Donofrio, veteran instructor and consultant for The Snell Group, an internationally recognized expert in electric motor testing training and research, demonstrates the methods used for de-energized and energized motor testing. These methods are powered by completely different technologies, which he will talk through. Donofrio also will cover static winding, circuit, and insulation assessment methods, and will discuss power quality, current signature, in-rush, and electrical signature analysis. He will leverage several case studies to illustrate the effectiveness of these advanced motor testing capabilities.

Don Donofrio, Technology Lead, Electric Motor Testing and Power Quality Analysis, The Snell Group

Don Donofrio is the Technology Lead for Electric Motor Testing and Power Quality Analysis at The Snell Group, a Barre, Vt.-based international consulting firm. With The Snell Group since 2001, he brings 46 years of knowledge in the operation, maintenance, and testing of electric motors and motor circuits. As an instructor and practitioner, Donofrio has been integral in developing a series of innovative, vendor-neutral motor testing training courses. He’s worked on motors from those rated in ounce inches of torque up to a NASA wind tunnel synchronous motor with 80,000 horsepower. Donofrio’s diverse electrical, electrical/mechanical, electronic, and sound motor knowledge is founded in his years with the Navy Nuclear Submarine Service. His 20-year exposure to the U.S. Navy nuclear submarines’ maintenance environment provides invaluable insights for customers’ reliability needs. He instructs both Energized and De-Energized Motor and Motor Circuit Analysis courses, as well as Level 1 Infrared Thermography.

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Original session held on February 3, 2021

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