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Infrastructure & Technologies

Priority to Asset Management

Time to focus on planning contingencies and balancing risk BY DON ANGELL AND MARK RIVERS, Doble Engineering Company By definition for electric utilities, asset management refers to an established system used to monitor and maintain valuable commodities such as transformers and power lines....

Disaster & Recovery

Coping with Extreme Weather Events

How to optimize the entire outage lifecycle BY RICK NICHOLSON, Ventyx The extreme weather just keeps coming. In 2012, there were 11 outages due to severe weather costing at least $1 billion. The year of 2013 had its share as well. More and more, the scale and variety of such major events are...

Case Study

Case Study: Rapid Changes in Bushing Health

IntroductionContinuous online monitoring of bushings provides real-time information which can result in the early detection of a possible failure. Challenge: A Major AlarmA prominent U.S. utility was looking for a way to improve system reliability for their 138kV assets. They researched and...

Wire and Cable

Reducing Partial Vacuum Induced Flashovers in 25 kV Class Loadbreak Separable Connectors

The 25 kV Class 200 Ampere loadbreak separable insulated connector system didn't always have today's reputation for safety and reliability. As 25 kV Class loadbreak connectors increased in popularity in the 1980's and 1990's, utilities reported unacceptably high numbers of flashovers...

Pole Line Hardware

Fighting Wildfires to Increase Pole Protection

Evaluating pole selection for increased protection BY BUTCH BERNHARDT, North American Wood Pole Council The number of wildland fires reached record levels in many states in 2014, prompting questions about what poles perform more efficiently in fires: steel or wood. Research from a bulletin...

Underground Distribution

Utility Proactively Tests Underground Cable

Distribution companies are continually looking for ways to improve system reliability, all while conserving capital investments and operational costs. With an aging infrastructure, one of the main issues that utilities face is a way to assess the actual condition of their capital assets. With...

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The Three R's: Reducing the Environmental Impact of SF6

Sulfur Hexafluoride (SF6) Gas is used as an electrical insulator and arc suppressant in high and medium voltage electrical equipment in the electrical power utility and industrial power industries. SF6 is also used in medical devices, metal production and other manufacturing applications. The same properties that make SF6 useful as a dielectric create environmental problems. SF6 is a major greenhouse gas with a GWP of 23,900; however, with proper training and equipment, SF6 can be...

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