Looking For Sources of Transient Overvoltages
Apr 1, 2006, By John DeDad, Editorial Director
Protecting susceptible electronic equipment from AC power line disturbances is a major concern for most people, whether their business environment is...
New Concepts in Large AC Motor Protection
Mar 1, 2006, By Alexander Kusko, Sc.D., P.E., Exponent Failure Analysis Associates, and Jean Y. Ayoub, M.S.E.E.,
Thanks to ongoing innovations in technology, electrical engineers' approach to motor protection has changed over the years. The traditional strategy to...
Simulating and Analyzing Transients in Power Systems
Mar 1, 2006, By John DeDad, Editorial Director
Electric utility engineers designing new transmission and distribution (T&D) systems and evaluating existing systems have relied on sophisticated software...
Understanding Transients: A Primer
Mar 1, 2006, By John DeDad, Editorial Director
We've all heard the term used in discussions of possible power quality problems, yet we still seem to have a lack of understanding of what a transient...
Dealing with Voltage Sags in Your Facility
Feb 1, 2006, By Mark McGranaghan, EPRI Solutions
If you're in charge of power quality at your facility, the very thought of a power outage not to mention the slew of problems that accompany one should...
PQ Protection Schemes, Sans Batteries
Feb 1, 2006,
Is the latest in UPS technology a little more than your budget can bear? Don't fret. There are other ways to protect your sensitive equipment from voltage...
Rise of Residential Surge Protection
Dec 1, 2005, By Jill Vaughan-Birch, Siemens Energy and Automation
The typical home sees a 100V surge hourly and a 1000V surge monthly. However, most residential customers don't know how to protect their expensive entertainment...
Ask the Experts
Nov 1, 2005,
The Facts on Ferroresonance...
Applying Power Conditioning Equipment
Nov 1, 2005, By EPRI Solutions, Inc.
You can view power quality problems as the difference between the quality of power supplied and the quality of the power required to reliably operate...
Applying Surge Protection Devices on High-Frequency Data Systems
Oct 1, 2005, By Mario Stolzenberg, Phoenix Contact, Inc.
With the rising importance and complexity of data networks in today's competitive business climate, the concern of losing communications is steadily increasing....
A Classic Case of PQ Denial
Oct 1, 2005, By Michael Eby, Editor-in-Chief
It always amazes me how soon we forget the pain of a power outage. I can understand how this happens when the outage is brief, taking down the system...
The Business of Power Quality
Oct 1, 2005, By Beck Finley, Staff Writer
After deregulation began allowing competition for power quality contracts in the electric utility industry, energy service companies (ESCOs) have been...
From Too Big to Too Little
Sep 1, 2005,
Sometimes it's best to just leave well-enough alone. Editorial Director John DeDad takes a look at the effects both good and bad of swapping out an oversized...
Clean Power Climbs
Jun 1, 2005,
Depending on how you look at it, the market for alternative energy continues to get sunnier, breezier, orfuel cellier. Solar, wind, and fuel cell energy...
Riding Through Unstable Power Conditions With VFDs
Jun 1, 2005, By Robert Glickman and Thomas Bernhardt, ABB, Inc.
You can't avoid power line disturbances altogether, but you do have access to options for mitigating voltage, current, and frequency deviations produced...
