Losing Power Isn't an Option
Dec 1, 2001, By Michael Eby, Editor-in-Chief
Two weeks ago, I lost power to my house when a distribution transformer serving the homes in my cul-de-sac failed. It took the utility about five hours...
Anatomy of a Power Outage
Oct 1, 2001, By John D. Gaskell, P.E., Gaskell Associates, Ltd.
After the power failed at a New England health care facility, a power quality investigation revealed an unlikely culprit....
Clean Power to Go: PQ in the SUV Age
Jul 1, 2001, By Stan Turkel, Power Quality Consultant
The next time you're crossing a parking lot or stuck in traffic, take a peak into the cars around you. You'll likely spot a variety of technological luxuries,...
California Energy Crisis, Rolling Blackouts Could Continue Through Summer
Apr 1, 2001, By EC&M Staff
Although California utilities took steps to expand the state's power generation capacity, their efforts could be too late to prevent severe power shortages...
The Interaction of Power Quality and Your UPS
Mar 1, 2001, By Joseph Stamper, DC Group
The common misconception that a UPS fixes all power quality problems can lead to an overload condition. Where does a UPS fit into your overall power quality...
Can You Name That Tune?
Mar 1, 2001, By Stan Turkel
Upgrading a historic building's elevator system leads to a mysterious case of the humming conductors....
UPS Cures for Power Quality Problems
Mar 1, 2001, By Mark Hartfiel, Power Engineering and Mark Lamendola, Technical Editor
A UPS will solve certain power quality problems, if you apply it properly. Because it supplies good power, it's easy to assume a UPS will cure all power...
Ensuring Power Quality and Reliability with Gen-Sets
Mar 1, 2001, By Mike Carr and Layne Sitter, Generac Power Systems
When you select the appropriate components, engine gen-sets can provide seamless ride-through upon loss of primary power. By design, engine gen-sets provide...
Museum Records Save the Day
Feb 1, 2001, By Stan Turkel
Being a power quality detective involves more than just finding a cause for an incident. Often, the job entails politics and communication with outside...
Simplifying Surge Protection
Nov 1, 2000, By Alex Gorosito
Because of the low-voltage operation of twisted pair and coaxial cables, effective surge protection is critical to avoid problems with electrical communications...
Don't Let Surges and Sags Get You Down
Nov 1, 2000, By Stan Turkel
Misdiagnosing routine power quality problems due to the effects of voltage surges or sags is easy to do, if you're unclear about the causes. A large-scale...
In Search of Transients
Oct 1, 2000, By Stan Turkel
When it comes to power quality events, it always helps to know what you’re looking for—before you begin your search....
Solving SCR Line Voltage Notching
Sep 1, 2000, By John A. Houdek, MTE Corp.
To solve 3-phase voltage notching problems, use a 3% impedance reactor....
Unexpected Harmonics Creates Controversy
Jul 1, 2000, By Kenneth M. Elovitz, P.E.
Lighting fixtures used in a commercial apartment expansion project featured low PF ballast and used two phases sharing a neutral. The result caused excess current on the neutral and a potentially hazardous situation....
Silicone Transformers Improve Fire Safety
Jul 1, 2000, Edited by Ellen Parson, Managing Editor
Consultants specify liquid silicone-filled transformers at media manufacturing plant to increase efficiency and improve fire safety of this power delivery system....
