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Tech Notes is a useful collection of lessons learned, valuable tips, information, and recent developments and changes in the industry that will be helpful, as well as keep you on top of our industry and industry trends. It will serve as a current knowledge base and be updated by our staff and technicians. We've also saved space for any positive feedback on a recent repair or maintenance call that you would like to share with us. We look forward to your comments and will incorporate them on a regular basis. The Pros and Cons of Having a Motor Rewound(Energy and Minerals-P.E.I. Department of Emergy) -- When a motor burns out,do you rewind it or replace it? Rewinding Energy Efficient Motors(Maintenance Technology) -- Understand the process and work with your service center to make sure you get the motor oerformance you need.Written by Chuck Yung, Electrical Apparatus Service Association Bearings and electricity don't match(Plant Services) -- The underlying causes of shaft currents weren't understood well until recently. Learn some of the solutions to the most common causes of shaft currents.Written by Chuck Yung, Electrical Apparatus Service Association VFDs can cut costs!(Maintenance Technology) -- Variable-frequency drives are beneficial, but you must avoid voltage spikes that can cause winding failure.Written by Chuck Yung, Electrical Apparatus Service Association Vibration analysis: what does it mean?(Plant Services) -- Interpreting the vibration signature of plant equipment. Vibration analysis, properly done, allows the user to evaluate the condition of equipment and avoid failures. Maintenance personnel can minimize unplanned downtime by scheduling needed repairs during normal maintenance shutdowns.Written by Chuck Yung, Electrical Apparatus Service Association |