UPS Systems and Gen-Sets: Better, But Still a Potential Problem
Feb 1, 2004, By Gary L. Olson, Cummins Power Generation
Specifying equipment that addresses the problems associated with generators and UPS equipment compatibility isn't enough...
Harmonics Made Simple
Jan 1, 2004, By R. Fehr, P.E., Engineering Consultant
Just because harmonics is becoming a more prevalent problem, that doesn't mean the subject is getting any easier to understand...
Meeting IEEE 519-1992 Harmonic Limits
Jan 1, 2004, By Michael Lowenstein, Harmonics Limited and John Hibbard, TransCoil, Inc.
The most effective way to meet harmonic distortion limits i to filter the harmonics at each individual load and measure them at the point of common coupling...
The Trouble With Capacitors Part 1
Dec 1, 2003, By R. Fehr, P.E., Engineering Consultant
Although shunt capacitors offer several advantages at all voltage levels, those advantages come at a price ......
Ask the Experts
Dec 1, 2003, By Mike Lowenstein, Harmonics Limited
How ‘True’ Are Your Meter Readings?...
Putting 10/350 Under the Microscope - 2
Nov 26, 2003, By Glenn J. Clifford, MCG Surge Protection
The international testing parameters for surge suppression are coming under attack stateside...
Putting 10/350 Under the Microscope - 2
Nov 26, 2003, By Glenn J. Clifford, MCG Surge Protection
The international testing parameters for surge suppression are coming under attack stateside...
Inside PQ
Nov 1, 2003, By Roger Dugan, Electrotek Concepts and Ellen Leinfuss, WPT/Dranetz-BMI
Getting to the Bottom of the Aug. 14 Blackout...
Ask the Experts
Nov 1, 2003, By Marc Taylor, Shell Global Solutions, Inc.
Chattering Coils and Signal Reference Grids...
Putting 10/350 Under the Microscope
Nov 1, 2003, By Glenn J. Clifford, MCG Surge Protection
The international testing parameters for surge suppression are coming under attack stateside...
Selecting a UPS System for Critical Power Applications
Nov 1, 2003, By Kevin Collins, P.E., Piller, Inc. and Andrew Dyke, CEng., Piller-UK
Rotary or static? That's the question...
The Devil in the Details
Oct 1, 2003, By John Dedad, Mark McGranahan, and Dan Carnovale
The Devil in the Details...
The Success of Energy Storage is All in the Timing
Oct 1, 2003, By John DeDad, Editorial Director
Most power quality disturbances that affect digitally dependant industries are short in duration, so the best option for providing seamless power may be energy storage technologies...
What's the Difference Between Surge Arresters and TVSSs?
Oct 1, 2003, By Dr. Richard Cohen, Panamax
New NEC requirements make it important to understand the difference between surge protectors, surge arresters, and transient voltage surge suppressors...
Inside PQ
Oct 1, 2003, By Mark McGranaghan, EPRI-PEAC, and Sandy Smith, EnerNex Corp.
What's the Latest in Power Quality Monitoring?...
Making Industrial UPS Protection Financially Attractive
Oct 1, 2003, By Brad Walter, Active Power, Inc.
Sometimes improved power quality and reliability aren't the only justifications for installing backup power...
Power Quality Show Preview
Oct 1, 2003, By Katie Eagan, Associate Editor
Don't Be Kept in the Dark...
Dealing with Voltage Sags in Your Facility
Sep 1, 2003, By Mark McGranaghan, EPRI-PEAC Corp.
Voltage sags can be just as detrimental to your plant as a complete outage...
Ask the Experts
Sep 1, 2003, By John Dedad, Editorial Director
A Curve By Any Other Name Is Still a Curve...
Selecting the Right Power Quality Meter
Sep 1, 2003, By Jon Bickel, Square D / Schneider Electric
Before purchasing a power quality meter, make sure its features actually meet your needs...
