Why This 800 HP Steel Mill Fan Motor Failed and What Tests Revealed
The combustion fan motors at the steel plant are 800 horsepower, 1785 RPM, 4160 Vac, 101 Amp AC...
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Motor Testing
Diagnosing Electric Motor Issues with Advanced Surge Testing
When reviewing the IEEE and EPRI large electric motor studies and what was considered ‘excellent...
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How Forensic RCFA Unlocks True Root Causes of Machine Failures
A tremendous amount of time, productivity, and production can be lost using improper...
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What the Large Motor Reliability Studies Actually Found and Why It Matters
One of the most frequently quoted studies related to electric motor reliability is a 1983 Electric...
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Supra Harmonics in VFD Systems: A New Frontier in Reliability Risk
As part of a larger research and development project involving multiple industries and distributed...
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Why So Many Electric Motors Are Quietly Running Beyond Safe Limits
Over the past four years, we have seen an increase in field troubleshooting calls related to...
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Best Practices for Electric Motor and VFD Inspection and Monitoring
Electric motors of all types remain the prime mover of industrial and commercial applications,...
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How to Diagnose High Shaft Current Motor Bearing Failures with ESA and MCSA
In some cases, diagnosing high shaft currents in electric machines requires additional testing. In...
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2025 NREL Wind Powertrain Meeting: AI, Bearings, and Reliability
This year, we participated in the NREL Wind Drivetrain Reliability Collaborative Workshop from...
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Partial Discharge Mechanisms: A Technical Deep Dive for VFD Motors
The article ‘Partial Discharge Explained: Causes, Effects, and Prevention generated a few...
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How Precision Alignment Can Transform Motor Reliability and Efficiency
By Howard Penrose and Eric Foreman As maintenance and reliability professionals, we know that...
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Overall Electrical Effectiveness: Key Metrics for Balanced Electrical Systems
Overall Electrical Effectiveness (OELE) is intended to drive behaviors that ensure the electrical...
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