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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...

Maximizing Electric Motor Efficiency

How to get the most from your rotating machines BY STEPHEN MANSFIELD, TechnoWise Inc. An area of great interest is improving the efficiency of electrical devices. More electric motor efficiency means less electrical energy consumed and thus less impact to the environment. By far, the largest...

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...

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:...

Understanding Short Circuit Motor Contribution

A back to basics approach BY DARRELL BROUSSARD, GE Industrial Solutions An electric motor’s contribution is the current generated by a motor or motors during a short circuit condition. It represents a small but important value that is needed to determine the maximum short circuit current...
Home Motors & Drives

Motors & Drives

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 performance and reduced maintenance costs, they replaced motor generator sets and direct current (DC) drives. When the energy crisis occurred in the early 1970s, saving energy became a critical goal, and the use...

Motors & Drives Articles

T&D Buyer’s Guide Companies

Motors & Drives Videos

OmniMax Ross Bridge Retrofit Case Study

HVI Tan Delta Transducer Product Video - T&D Channel

ELECTROTM Overview

Motors & Drives Products

Spark P3 - Universal PD & EMI Analyzer

DDIN Fiberglass Arm Sleeve Protector Kit

OMICRON MONTESTO 200

Motors & Drives Shared Media

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Industrial Electricity Efficiency Handbook Vol.1

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Power Quality And Electrical Grounding Handbook Vol.6

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