Revisions to IEEE 1068 — Electric motor repair

IEEE Std 1068-2015 for repair and rewinding electric motors has several modifications to the 2009 edition to make it more useful to users of electric machines. As well as general revisions, sections have been added to cover: Repair of synchronous machine rotors of all types; magnetic slot wedges; permanent magnet rotor machines; bearing currents on ASD driven motors; rehabilitating flooded motors and a Repair Checklist. As before, the standard was developed by people who have been associated with motor repairs for many years and is intended for users in the petroleum, chemical process and other industries. As well as specifying technical requirements, it describes what should be done before a machine fails (e.g. evaluating shops and plant record keeping), what to specify when a failure occurs, in situ motor record-keeping, failure analysis, monitoring progress, and post repair functions. Many users already use the standard as the basis of their own corporate standard. Using it should result in higher quality, cost effective and timely repairs.