Concepts in Reliability Keeping it Simple and Random Thoughts

As I just mentioned to a friend – I seem to be waxing philosophical this past weekend as I complete reading “Wizard: The Life and Times of Nikola Tesla, Biography of a Genius,” by Marc J Seifer. I would not have tripped over this and several other excellent texts had I not started returning to…

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. …

UIC ERC Industrial Assessments Project 1999 Paper

Through proper application of simulation and modeling within industrial environments, greater impact for energy, waste and production improvements can occur. Modern simulation and modeling systems can help determine impacts of energy and waste reduction concepts on production and vice-versa. Through a 1999 Illinois Department of Commerce and Community Affairs funded project, improvements of over 40%…

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…