by Howard Penrose, Ph.D., CMRP | Aug 30, 2021 | Asset Management, Electrical Reliability
Evaluation and pre-processing of data is one of the more time-consuming steps in development of a machine-learning (ML) project. In this step, the data scientist views and manipulates the collected data to see what types of artifacts and patterns emerge, including...
by Howard Penrose, Ph.D., CMRP | Aug 21, 2021 | Asset Management, Electrical Reliability
In Parts I and II of this particular series (see links below), we discussed using raw motor data for Machine Learning (ML); identified an example electric motor; selected an ML language; and explored some available motor data. Now we need to determine what we will be...
by Howard Penrose, Ph.D., CMRP | Aug 15, 2021 | Asset Management, Electrical Reliability
In the first part of this article series (Aug. 8, 2021, see link below), we identified an electric motor and raw data that’s available for performing a Machine Learning (ML) project. We also reviewed the basic steps in the development of an ML system using that...
by Howard Penrose, Ph.D., CMRP | Aug 8, 2021 | Asset Management, Electrical Reliability
The race to Machine Learning (ML) and Artificial Intelligence (AI) for electric machines has primarily focused on the spectral features of those units. As more academic papers are published, though, the focus is taking us further into advanced topics. Those topics are...
by Howard Penrose, Ph.D., CMRP | Jul 31, 2021 | Asset Management, Electrical Reliability
Incorrect settings in a variable-frequency-drive (VFD) application have an impact on the windings of an electric motor. If a drive is not set correctly, or not tuned when straight volts/hertz settings aren’t used, stresses occur between the turns in a winding....
by Howard Penrose, Ph.D., CMRP | Jul 26, 2021 | Electrical Reliability, The Sustainable Plant
In the context of this article, the term “smart device” is defined one that is programmed to be capable of some independent action. We also use terms such as big data, cloud, neural networks, artificial or augmented intelligence (AI), virtual reality,...
by Howard Penrose, Ph.D., CMRP | Jul 18, 2021 | Electrical Reliability, The Sustainable Plant
As usual, you get up early in the morning to go to work, leaving your house about the same time as all your neighbors. As you drive, you begin to notice that you’re catching all green lights on the main thoroughfares, and cross traffic has less time for its...
by Howard Penrose, Ph.D., CMRP | Jul 11, 2021 | Electrical Reliability, The Sustainable Plant
In the vernacular of smart grids, your facility might already be considered a “microgrid.” One of the concepts that became part of the smart-grid framework we discussed in my July 3, 2021, article (see link below) had to do with the definition of...
by Howard Penrose, Ph.D., CMRP | Jul 3, 2021 | Electrical Reliability, The Sustainable Plant
Everything seems to be “smart” these days. Phones, cars, refrigerators, you name it. What on Earth, though is a “smart grid?” We really didn’t begin referring to the power grid as “smart” until around 1994, when I was serving as the...
by Drew Troyer, CRE, CMRP, T.A. Cook/Accenture, Editor | Jun 27, 2021 | Asset Management, Electrical Reliability
Building on my recent series of articles about Overall Inspection Effectiveness (OIE), Overall Lubrication Effectiveness (OLE), and Overall Vibration Effectiveness (OVE), I’m turning my attention to Overall Electrical Effectiveness (OELE) this week. Like those...
