ESTIMATING LOSSES IN AN ELECTRIC MOTOR: A COMPARISON OF VIBRATIONANALYSIS AND ELECTRICAL SIGNATURE ANALYSIS PART 1

To date many assumptions and generalizations are made in relation to energy and emissions losses and vibration analysis for commercial/marketing reasons, and rarely do they meet the actual values, in an effort to appear green and compete with ESA technology.  Basically, how the data is determined in some of the tech we’ve seen in marketing material using just the vibration data and without any additional information required in order to calculate the losses (weights, stiffness, etc.) has been of greatest concern.  The purpose of this series is to provide a methodology for providing comparative values between ESA in kW spectrum with vibration, in addition to providing something more accurate that can be measured with a power meter before and after any corrections.  Of course, this will be supported with direct comparative measurements.  The purpose of Part 1 was to demonstrate that even inaccurate conversions require much more detail than the wet-finger-in-the-air numbers we have seen.