Overhead T&D

Infrastructure & Technologies

Working Live on Transmission Line Structures

Developing protective coating maintenance strategies BY GEORGE JUHN & ALEX MOGILEVSKY, CEATI International Aging of the electrical transmission infrastructure has resulted in an increased need for maintenance to ensure a reliable supply of power to customers who have higher expectations than...

Conductors & Materials

Digital Twins for Substations: Bridging the Physical and Digital Worlds

In the rapidly evolving landscape of power grid management, digital twin technology is emerging as a game-changer for substations. By creating virtual replicas of physical assets, digital twins bridge the gap between the physical and digital worlds, enabling enhanced operational efficiency and...

Wire and Cable

The Evolution / Revolution of Overhead Conductors... and why it matters

Brief Background: In the early 1900’s Aluminum Conductor Steel Reinforced (ACSR) conductor was developed to replace copper wires, due to the war effort when copper was needed for munitions. In the 1970’s growing demand for electricity inspired the development of higher capacity...

Case Study

FirstEnergy Explores Alternatives to PJM Capacity Market

In a strategic move aimed at enhancing its power supply reliability, FirstEnergy is actively exploring alternatives to the PJM capacity market. This development reflects the company’s proactive approach to addressing challenges within the existing market structure and ensuring a more robust...

Overhead Distribution

Building a better world of smart structures on the smart grid

It is a truth universally acknowledged that billions of people around the world live in poverty. But does it have to be that way? Today’s technological progress means that tomorrow we will be able to produce more, more efficiently – lifting people above the breadline with accelerated...

Underground Distribution

Underground Smart Grid

In recent years, the cost to bury high-voltage power lines has decreased dramatically. The American Transmission Company reports that installation costs for underground transmission lines (over 100 kilovolts) are now only 2.5 to 10 times the cost of an equivalent overhead line. Consequently, the...

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Lightning Strikes

In Canada, lightning flashes occur about 2.34 million times a year; with the highest levels of concentration during the summer months.

While most lightning on earth is ground-to-cloud, recent research has identified that the majority of lightning events to tall structures, such as wind turbines, occur in the presents of ground-to-cloud leaders – upward lightning. More importantly, the majority of ground-to-cloud leaders transpire following a sudden change in electric field initiated by either cloud-to-cloud, cloud-to-air...

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