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…
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.
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. …
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…
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…
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…
Windpower Engineering Magazine
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…
Effective January 11, 2018, MotorDoc LLC was recognized by the US Veterans Administration as a Veteran Owned Small Business. Contact us at info@motordoc.cominfo@motordoc.com
