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Power Quality & Grounding

How to improve your NEC/CSA Installations

Grounding and Bonding are the least understood, the most misinterpreted and confusing elements in modern electrical and electronic systems and leads to poor design and installation work — especially as it relates to the Canadian Electrical Code (CEC) and to the National Electrical Code (NEC)...

How to Protect Data Centers

Exploring power flow and heat transfer technologies BY BRIAN FORTENBERY, Electric Power Research Institute A data center is a large concentrated load about 20 times more energy-intensive than the typical commercial building and 80 to 100 times more energy-intensive than the typical home. They...

Solving Power Quality Troubles in VFDs

Q: What are some of the negative power quality impacts from voltage variances and transients on variable frequency drives (VFDs)? And, what are some recommended solutions to resolve this VFD site issue? OUR EXPERT | Paul Wright, P.Eng, engineered drive solutions manager, Electrical Controls...

Wireless Measurement Systems

Conquering challenges with wireless measurement systems BY COLIN PLASTOW, Fluke Electronics Any type of manufacturing or industrial environment presents a number of challenges when taking measurements. Whether you need to check performance over time or run spot checks, there are many situations...

Understanding the DC Overpotential Test

The 411 on DC testing of low-voltage circuit breakers BY JIM WHITE, Shermco Industries, Inc. The direct current (DC) overpotential test is one of the basic tests conducted to ensure an insulation system has adequate insulation life to make it to the next scheduled maintenance interval. While not...

Reducing Electrical Risks in Data Centers

Industrial-strength solutions to improve safety BY MIETEK GLINKOWSKI, ABB A major source of disruption and downtime in data centers is human error. And their largest safety hazard is in the increasing size of the electrical systems that power them. Both of these risks can be addressed at two...
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Electrical Grounding and the Weather

How resistance testing is affected by the elements

BY JEFF JOWETT, Megger

Ground resistance testing is affected by the weather as much as any common electrical test—and sometimes even more so. Both the instrument and the test item are affected. With ground resistance testing, the test item is not so readily managed as a motor or electrical circuit which can be dried, cleaned, placed in a controlled environment or some other adaptation to accommodate easy...

Power Quality Articles

INSULATION RESISTANCE TEST

T&D Buyer’s Guide Companies

Power Quality Videos

How Current Limiting Protectors Work: A Simple Explanation

Vibro-Acoustic as a Fast Diagnostic Tool for On Load Tap Changers

The Importance of Through Fault Monitoring for Power Transformers

Power Quality Products

SorbNseal

Analog & Digital Meters

Tech-3D Embossed Metal Pole tags

Power Quality Shared Media

Brochure

COULOMB: 3D Electrical Design Software

Catalog

Electricity Today T&D Magazine - Overhead & Underground T&D Technologies Special Edition

Article

How Overhead Switchgear Innovation Cost-Effectively Bolters Sub-Transmission Grid Reliability