Transmission lines have become a staple of our landscapes – they traverse an incredible range of environments, climates and terrains, leaving lasting images. Their longevity is at least partially ...

In any heat transfer equipment such as a boiler or Heat Recovery Steam Generator (HRSG), the exit gas temperature determines the amount of energy recovered from the flue gas stream, which is ...

This article discusses why voltage as well as frequency load shedding may be necessary to prevent major system blackouts. It is the first of two articles on the important subjects of power system ...

In the previous issue of EE T&D part 1 of the article on Undervotage Load Shedding discussed the investigations of recent blackouts [1,3,7], which indicate that the root cause of almost all of these ...

Almost all utilities and large industrial facilities have extensive systems of power cables. Many of these cable systems are ageing and failures are becoming common. Finding the root cause of cable ...

With the advent of CAD, work order management, and purchasing technology in recent decades, substation engineering underwent a transformation. Design, purchasing, and construction management ...

Tucson Electric Power Company (TEP), Tucson, Arizona, is the principal subsidiary of UniSource Energy (publicly traded on the NYSE under the symbol UNS). The company serves more than 400,000 power ...

Power transformers are one of the most dangerous electrical equipments because of the large quantity of oil they contain which is in direct contact with high voltage elements. Under such circumstances ...

Prudent vegetation management, as applied to electric power transmission, embodies prudent risk management. Specifically, the prudent vegetation manager answers the following two questions in the ...

The utility industry has been on a roller coaster ride for much of the past few years. Caught in the midst of fitfully starting and stopping deregulation, aging infrastructure, higher than ever demand ...

Robotic technologies are an innovative way to assist utilities in their asset management programs. The Electric Power Research Institute (EPRI) is developing robots that will inspect transmission ...

Once viewed as a nice, niche product for applications where environmental safety was at a premium, a recent trend reveals more and more power companies turning to natural ester fluids as a transformer ...