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Reviewing Electric Motor Reliability Research

What did the studies really say—then and now? BY HOWARD PENROSE, Ph.D., CMRP One of the most frequently quoted studies related to electric motor reliability is a 1983 Electric Power Research Institute (EPRI) project, entitled “Assessment of the Reliability of Motors in Utility Applications:...

Overload Protection for Electric Motors

Thermal images are an easy way to identify apparent temperature differences in industrial three-phase electrical circuits, compared to their normal operating conditions. By inspecting the thermal differences of all three phases side-by-side, technicians can quickly spot performance anomalies on...

Improving Motor Maintenance Practices

Useful approaches to building an effective operation and maintenance program BY IAN CULBERT AND VICKI WARREN, Iris Power Engineering The pressures to be more competitive and cost-effective in today’s deregulated market have driven plants to reduce resources by making more informed,...

Variable Frequency Drive Cable Best Practices

Correcting common mistakes that affect performance and safety BY PETER COX, Belden, Inc. Most industrial operations today are looking for ways to reduce costs in these tough economic times. Variable-frequency drives (VFDs) are popular in many applications because they provide energy savings and a...

Enhance Performance with VFD Technology

Energy savings for pumping applications BY TOM NEUBERGER & STEVEN WESTON, Eaton In the early days of variable frequency drive (VFD) technology, the typical application was in process control for manufacturing synthetic fiber, steel bars and aluminum foil. Because VFD improved process...

Monitoring Stator Winding Deterioration

The importance of partial discharge testing in electric motors BY VICKI WARREN, Iris Power LLP Comparing partial discharge (PD) results obtained from a single machine is a valuable tool that enables companies to observe the gradual deterioration of a machine stator winding. Proper monitoring of...
Home Motors & Drives

Motors & Drives

Overload Relays for Motor Protection

Improve system reliability and efficiency

BY KEVIN TRIMMER, Eaton Corporation

Nearly a third of global energy demand is attributable to manufacturing. Overall, the industry’s use of energy has grown by 61 percent between 1971 and 2004. According to the International Energy Agency (IEA) analysis, there are substantial opportunities to improve worldwide energy efficiencies.

More specifically, motor systems use more than 75 percent of a plant’s electricity. Driving energy efficiencies is more than being green. It...

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Photocontrol Failsafe Technology for Outdoor LED Lighting

Trailer Mounted Single Reel V-Groove Carrier/Tensioner

VLF E Series Product Training - T&D Channel

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AMPERETM

STANDALONE OLTC EVENT RECORDER - OTM-X

Spark P3 - Universal PD & EMI Analyzer

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Electricity Today T&D Magazine - SPECIAL SCADA for the Smart Grid ISSUE

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2020 ON-SITE ELECTRICAL TRAINING CATALOG

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Electrical Transformer Handbook Vol. 3