Author: Howard Penrose

P-F Curve Fundamentals: Aligning Maintenance and Test Frequencies

Posted by Howard Penrose | Jan 21, 2025 | Articles, Maintenance and Reliability, Predictive Maintenance

One of the most important aspects of any condition-based maintenance program or maintenance...

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Top 5 Rules for Accurate Vibration Sensor Placement and Setup

Posted by Howard Penrose | Jan 7, 2025 | Articles, Bearings, Maintenance and Reliability, Predictive Maintenance

By Howard Penrose and Matt Knuth Vibration analysis is a powerful diagnostic tool for identifying...

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Partial Discharge Explained: Causes, Effects, and Prevention

Posted by Howard Penrose | Dec 22, 2024 | Articles, Energy Management, Motor Testing

Partial discharge is an electrical effect that, once upon a time, was only a concern for...

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How Misapplying IEEE 519 Affects Inverters and Harmonic Distortion

Posted by Howard Penrose | Dec 14, 2024 | Articles, Maintenance and Reliability, Motor Testing

You are about to install a new variable frequency drive. The supply transformer is checked for...

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Electrical Signature Analysis Case Studies: From Detection to Resolution

Posted by Howard Penrose | Dec 7, 2024 | Articles, Energy Management, Motor Testing, Predictive Maintenance

There is often discussion about how soon faults can be detected by different technologies and...

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