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…

How to Analyze a Belted Fan with EMPATH and Electrical Signature Analysis

Free Live Seminar for April 17, 2020 from noon to 1pm CST In this presentation we will work step-by-step how to analyze an electric motor, sheaves, belts and fan including related bearings using real field data. The demonstration will be with the EMPATH system but applies to other current and electrical signature analysis. GoToWebinar to…

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…