by Howard Penrose, Ph.D., CMRP | Mar 7, 2021 | Electrical Reliability, Motors & Drives
in this week’s article, we wrap up our short series of discussions around the first of the three parts (“Volumes”) of the 2021 “U.S. Industrial and Commercial Motor System Market Assessment Report.” In doing so, we need to consider...
by Howard Penrose, Ph.D., CMRP | Feb 27, 2021 | Electrical Reliability, Motors & Drives
As noted in Part I of this article series (Feb. 14, 2021, see link below), the purpose of the “U.S. Industrial and Commercial Motor System Market Assessment Report” is to provide information on the current state of electric motor-driven systems in United States...
by Howard Penrose, Ph.D., CMRP | Feb 21, 2021 | Asset Management, Electrical Reliability, Plant Operations
With the extreme polar vortex dipping south into Texas recently, there’s been plenty of discussion about the reliability of wind turbines in supplying power. The issues raised have ranged from turbine icing to the notion that Texas might have been relying too...
by Howard Penrose, Ph.D., CMRP | Feb 14, 2021 | Electrical Reliability, Motors & Drives
In 2016, a project was launched by the U.S. Department of Energy (USDOE) through Lawrence Berkeley National Labs to re-perform the original industrial and commercial motor-system opportunities reports from 1996. At the beginning of the study, there was a...
by Howard Penrose, Ph.D., CMRP | Jan 23, 2021 | Electrical Reliability, Motors & Drives
In Part of this series (Jan. 16, 2020, link below), we discussed a few basics of supervised machine-learning (ML) systems, including typical steps to the development of an ML solution. In this second installment, we take a brief look at the types of algorithms used in...
by Howard Penrose, Ph.D., CMRP | Jan 16, 2021 | Electrical Reliability, Motors & Drives
We’ve heard the terms “Machine Learning (ML)” and “Artificial Intelligence (AI)” a lot over the past few years. Even the term “Neural Networks” has entered into the marketing language of the moment. The concepts behind these terms...
by Howard Penrose, Ph.D., CMRP | Jan 9, 2021 | Electrical Reliability, Motors & Drives
In this article, we use Electrical Signature Analysis (ESA) to evaluate a drive-end bearing in a 1210 rpm, 1.5 MW, 690 Vac wind-turbine generator. The problematic 6330M bearing was found during routine analysis of a wind-power site. One of the challenges of projecting...
by Howard Penrose, Ph.D., CMRP | Jan 3, 2021 | Electrical Reliability, Motors & Drives
In some cases, a significantly greater set of data is required to make improvements to a troubled system. When using individual technologies, most technicians are looking for single problems that relate specifically to the selected technology. Consequently, they will...
by Howard Penrose, Ph.D., CMRP | Dec 20, 2020 | Electrical Reliability, Motors & Drives
A loose base is a common electric-motor consideration in new applications and following the aging of a motor-system application. In this case study we explore the use of Electrical Signature Analysis (ESA) and motion amplification to discover the issue and confirm the...
by Howard Penrose, Ph.D., CMRP | Dec 5, 2020 | RAM Tools & Methods
A number of products have come out of the National Institutes of Standards and Technology (NIST) Department of Commerce project on Manufacturing Machinery Maintenance. Among them is a set of software tools that provide the ability to benchmark. For this article we’ll...
