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Latest News From The T&D Industry

ISO New England Issues RFP to Integrate Maine Wind Power

ISO New England, the regional grid operator, has launched a Request for Proposals (RFP) aimed at enhancing the region’s transmission infrastructure to support the anticipated influx of wind energy from northern Maine. The new initiative, announced on March 31, 2025, seeks to address long-term transmission needs and improve power flow between northern Maine, where large-scale wind farms are expected to be developed, and the demand centers in southern New England.

The RFP, developed in collaboration...

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Climate Change News

Climate Change Impacting Bird Migration Patterns

Climate change is increasingly influencing bird migration patterns, affecting the timing, routes, and destinations of many species. These alterations have significant implications for ecosystems, conservation efforts, and our understanding of avian behavior.​ Shifts in Migration Timing Rising...


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Utility News

Fort Collins Municipality Case Study

A proposal for equipping broadband services to the Fort Collins, CO, municipality was approved by residents and a $120 million bond is now providing Fort Collins with resources to build and improve the municipality’s infrastructure so it can support broadband service for any qualifying...

Electrical Substations

Circuit Breaker Time and Motion Testing

Determining mechanical condition of high-voltage circuit breakers

BY JOZEF LEVI, Doble Engineering Company

Life expectancy of a newly installed high-voltage circuit breaker is approximately 40 years. Throughout its life, under normal circuit conditions, the circuit breaker will operate less than ten minutes. During abnormal circuit conditions, the breaker will operate less than one minute in its lifetime.

The primary goal of circuit breaker testing is to determine the condition of the circuit breaker. Breakers have moving parts, components that allow electrical contacts to separate (an ‘open’ or ‘trip’ operation) or to close. Whether those contacts are in a vacuum, in oil or in a gaseous medium, it makes sense to test the moving parts of the breaker—a ‘motion’ or ‘travel’ test.

If the motion of the contact system is in accordance with manufacturer specifications, then we can reasonably conclude that all mechanical parts, from the mechanism that provides the movement...

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Substation Automation

SUBSTATION AUTOMATION AND INTEGRATION PROGRAMS

Newton-Evans Research Company, Inc. of Ellicott City, MD is preparing to publish market research findings from Volume 1 of a four-volume study, “The World Market for Substation Automation and Integration Programs in Electric Utilities: 2017-2020.” Volume 1 of this Substation Automation...