I still find it amazing that people are coming out with the same thing that we came out with in the 1990s when PWM drives made their dramatic push into industry – and presenting it all as somehow ‘new.’ In any case, here is another IEEE Electrical Insulation Conference paper published in 1997 from research…
Back in 1997 Leo Dreisilker, the president of Dreisilker Electric Motors, and I, while I was at a small engineering firm doing what we now call digital twin and machine learning, performed a study on the mechanical impacts of different stator materials when exposed to burnoff ovens. This was published in the 1997 at the…
Presented in the July/August 2000 IEEE Electrical Insulation Magazine. Basic concepts on how technologies such as the ALL-TEST Pro offline systems work. Yep, I still use one.
An IEEE article published in the IEEE Electrical Insulation Magazine January/February 1997 during the period where we were developing US Department of Energy motor management programs (Motor Challenge). The information is as true today as it was in 1997.
Power, magnetic and ground harmonics have a negative impact on the reliability of your electric motors both electrically and mechanically. We often focus just on the power harmonics when reviewing information on power quality, but rarely view the self-generated electric machine harmonics and the harmonic content present in grounds and neutrals. Over the past several…
What is the importance and differences between core loss testing and hot spot testing in electric machines through the repair process? How are they performed and what results do they provide? In this short article we will discuss the basics of core and hot spot testing and their impact on electric machine reliability. This white…
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…
What is the impact of an electrical reliability program? Or even the application of a precision maintenance program Overall, the transition to a planned maintenance program from a reactive program has been identified by the US Department of Energy (US DOE) Industrial Assessment Centers (IAC) as having at least 14% improvement of all energy consumption…
It is established that neutral and ground harmonic content will load transformers and systems. Prior work has been limited as to the direct relationship of this additional loading on power consumption for a facility. Over the past 24 months applied research has been performed on the measured impact of neutral and ground harmonics and energy…
