Motors and VFDs - How They Work, Why They Fail, and What You Can Do
This presentation will first review the theory of operation for electric motors and variable frequency drives (VFD), including making the business case for switching to premium efficient motors and employing VFDs. We will then consider the many failure modes of both motors and VFDs, especially the failures that are caused by their interaction. Root causes will be reviewed along with solutions for each failure mode. Actual examples from industrial applications will be presented.
Tom is the founder and president of Sustainable Energy Services, Inc., an unbiased and independent, nationally certified woman-owned energy management services company that serves non-residential customers throughout the U.S. Services include ASHRAE Level 1, 2 & 3 Energy Audits, Energy Procurement, Demand Response, Energy Project Management, Post Project Measurement and Verification, Utility Rebates, and other energy-related services.
Prior to Sustainable Energy Services, Tom was co-founder of PCX Energy Services where he was the lead auditor for industrial and commercial energy audits. He was also a member of the energy consulting practice at FirstEnergy Corporation and held senior management positions at Buschman Corporation, Enersys and Sola Electric.
Tom has been a regular speaker on energy efficiency at regional and national energy conferences including the Annual Ohio Energy Conference, AEE East Energy Conference, AEE World Energy Conference, He has also been a past speaker at the National Retail Construction Conference, National Restaurant Association Conference, National Grocers Association Conference, AEP Conference on Compressed Air, and is a speaker/trainer for the Operator Training Committee of Ohio. He is a member of the Association of Energy Engineers, and is a Certified Energy Manager (C.E.M.), Certified Energy Auditor, (C.E.A.), Certified Demand Side Manager (C.D.S.M.), and Certified Compressed Air System Specialist (C.C.A.S.S.). Tom earned his BS in Physics from Northeastern Illinois University and an MBA from Lake Forest Graduate School of Management.