Electricity Forum Electricity Today Magazine Arc Flash Training
Intelligent Power Today Magazine
Archives

Electric Motors

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...

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,...

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...

Bearing Protection of Inverter-duty Motors

Although it is now common knowledge that inverters—also known as variable frequency drives—often induce unwanted motor shaft voltages, many customers who purchase three-phase alternating current (AC) induction motors do not realize that models labeled “inverter-duty” or “inverter-ready”...
Home Motors & Drives

Motors & Drives

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 “more precise” control over the electric motor. Moreover, VFDs use sensitive communications data to control mechanical devices, allowing operators to increase precision, reduce waste, and increase motor life by reducing wear...

Motors & Drives Articles

T&D Buyer’s Guide Companies

Motors & Drives Videos

Methodology for the maintenance program of high voltage substations

HVI Tan Delta Transducer Product Video - T&D Channel

YGC MANUFACTURING

Motors & Drives Products

CRIMPERS

Cut-Resistant and Puncture-Resistant Gloves

F8300 - Seven-module Test Set

Motors & Drives Shared Media

Catalog

Critter Guard: Company Profile

Catalog

Electrical Equipment Testing & Maintenance Vol. 6

Catalog

Electrical Transformer Testing Handbook, Vol. 63