Todd A. Hatfield - Vice President of Engineering & Repair, HECO
This video focuses on conditions that have an impact on electric motor life such as load differences, supply voltage variations, phase voltage unbalance, and temperature. This was originally presented at the Reliability, Process, and Maintenance (RPM) Symposium on Sep 13-14, 2016.This is the fourth article (video) in a series of articles on The Basics of AC Induction Motors. The first video explored the basic principles of AC Induction motors focusing on magnetism, electromagnetic induction, AC current, and rotating magnetic fields.
The second segment discussed the different components that makes up an AC Induction Electric Motor: Rotor types and construction, stators and winding types, and bearing types.
The third video got into some items that are commonly misunderstood on electric motor nameplates such as speed, slip, service factor, insulation class, temperature rise, NEMA design, and KVA code.
Todd A. Hatfield, VP Engineering & Repair
HECO – All Systems Go
About the author:
Todd A. Hatfield is the Vice President of Engineering and Repair at HECO. He has over 35 years' experience in generator and electric motor repair and engineering. Todd has a BS in Electrical Engineering, and his areas of expertise are: electrical and mechanical motor redesigns and engineering, root cause of failure analysis, and quality electric motor rebuilding.