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Gas Dehydration

Sulfur hexafluoride (SF6) insulates medium- and high-voltage switchgears around the world. In its pure form, this non-toxic, inert gas helps the power transmission & distribution (T&D) industry operate more safely by extinguishing high-temperature arcs. With a much higher...
Substation Protection

Substation Focused on Environmental Design

One of the important trends in design of new overhead lines over the past 20 years has been development of structures and designs that are less obtrusive and more pleasing visually. Much the same process has also been going on at substations. For example, even 25 years ago, efforts had already been...

Power Transformers

Electrical Transformers

Transformer Core Grounds

Transformer core grounds: a different path to maintaining insulation systems BY JAMES WHITE, Shermco Industries, Inc. Power transformers are usually supplied with a ground from the core of the transformer to the tank (earth/ground). Smaller, dry-type transformers may not have this ground, but it...
Transformer Protection

Pennsylvania’s Yaw Bill

In a significant move for Pennsylvania’s energy sector, State Senator Gene Yaw has introduced a transformative piece of legislation aimed at modernizing the state's approach to power plant development and capacity management. The bill, which has been the subject of considerable discussion,...
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Transformation

Storm-Hardened Switchgear

How to protect electrical equipment from Mother Nature

BY ROBERT A. MURPHY, Trayer Engineering Corporation

The U.S. National Weather Service called Hurricane Sandy the most destructive storm of 2012’s unusually active Atlantic hurricane season. Sandy delivered unprecedented damage across a wide swath of eastern Canada, the U.S. eastern seaboard, the Bahamas, Bermuda and other coastal areas. In addition to nearly $50 billion in property damage and almost 150 fatalities, the Category 3 hurricane also caused...

Transformation Articles

switching times on medium and high voltage Gas Insulated Switchgear

T&D Buyer’s Guide Companies

Transformation Videos

VLF E Series Product Training

Introducing Critter Guard

Power Outages in the United States

Transformation Products

M7100 High-Voltage Asset Analyzer

DILO 3-033-R002 SF6 Gas Leak Detector

Transformation Shared Media

Catalog

Monitoring Solutions for Data Centers

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Electricity Today T&D Magazine – Intelligent Transformers & Substations Fall 2025 Special Edition

Catalog

B100 Series Electronic Temperature Monitor