Electrical and Current Signature Analysis in Standards a 2022 update
On December 1, 2022 I received my usual daily IEEE standards updates for voting which included IEEE P1017.4/D1, “Draft Recommended Practice for Testing and Rating of Electrical Submersible Polyphase Induction Motors.” This would be the complete new draft of such a standard developed by the Petroleum and Chemical Industry Committees of the IEEE Industry Applications…
Practical Electrical and Current Signature Analysis of Electrical and Mechanical Systems Forward
A reading of the new book on Electrical and Current Signature Analysis by MotorDoc LLC which is planned for release in the second half of October, 2022.
Evaluating Missing Wedges and Coil Movement with ESA IEEE Paper
Two significant issues in wind power asynchronous generators are magnetic wedge loss and coil movement resulting in winding faults. Most of the time the failures occur unexpectedly or require borescope or visual inspections of the generator stators. In this paper we will identify how both conditions can be detected during operation through Electrical Signature Analysis. …
EMPATH Electrical Signature Analysis for the Wind Industry for Generator and Powertrain
Free Seminar April 20, 2020 from noon to 1pm CST We will discuss the art of EMPATH data collection and analysis of wind turbine generators, gearbox, main bearings and blades from the voltage and current. We will discuss how the data is collected and the approach to analysis. This will be exclusive for wind companies…
Wind Powertrain with EMPATH
Kevin Alewine of Shermco and I presented at the American Wind Energy Association Operations and Maintenance Conference (AWEA O&M). The EMPATH data on just under 400 generators and powertrain resulted in 772 findings on a specific manufacturer’s generators. The general industry findings for these generators are: The findings from the EMPATH evaluations: The generator findings…
Evaluation of Stator and Rotor Interturn Stress with Electrical Signature Analysis in Variable Frequency Drive and Wind Generator Applications
Abstract— Electrical Signature Analysis is the application and analysis of Voltage and Current data collected on electrical machinery systems. The measurements are converted to amplitude modulated Fast Fourier Transforms that can be evaluated for power, machine and powertrain conditions. Electrical and mechanical conditions are determined through their effects on the airgap magnetic field. One of…
Repairing Wind Generators
Windpower Engineering Magazine
Predictive and Testing Services
MotorDoc LLC president Howard Penrose has over 30 years predictive maintenance and maintenance testing in all areas and industries. As of November, 2018, MotorDoc LLC also provides continuous monitoring services in both Electrical Signature Analysis and Vibration Analysis. Contact us for a PdM or testing consultation. Efficient testing and PdM, fast reporting! info@motordoc.com Motor Circuit…
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