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Vegetation Management

Vegetation Management on Transmission Lines

Using LiDAR technologies to enhance operations BY PHILIP CHARLTON, Utility Arborist Association In March 2014, utility vegetation managers from throughout North America gathered in Fort Worth, Texas to share their experience with the use of LiDAR (light detection and ranging) remote sensing...

Infrastructure & Technologies

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...

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Outage Management: Restore Power in Less Time

Improving power grid reliability is a major goal of the electric power industry and can reduce economic losses, lost productivity, and customer inconvenience from power disruptions. For several utilities, Smart Grid Investment Grant (SGIG) funding accelerated the application of fault location,...

Conductors & Materials

Safety in Underground Power Systems

Protecting utility personnel working below ground BY MIKE DOHERTY, PowerTel Utilities Contractors Limited "Safety” in “underground systems” has different connotations for different sectors depending on the tasks performed. “Qualified electrical workers” can have significantly diverse...

Pole Line Hardware

Fiber-Reinforced Composite Cross Arms for Transmission Structures

Fiber-reinforced polymers versus traditional cross arms materials BY JANOS TOTH & GRANT LOCKHART, FRP Transmission Innovations Inc. Recently, utilities have started using newer options such as component polyurethanes instead of older, widely used conventional materials. Specifically,...

Disaster & Recovery

Evolution of Outage Management Systems

Examining the evolution of outage management systems BY GERALD GRAY & JOHN SIMMINS, Electric Power Research Institute (EPRI) Once again, a major storm event, in this case Hurricane Sandy, has brought increased attention to a utility’s capability to respond to and mitigate damage to its...

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Using Continuous Offline Insulation Resistance Testing and CBM to increase Plant Safety and Reliability

Since over 80% of electrical maintenance testing involves evaluating insulation integrity, the first and most important test done on electrical equipment is an Insulation Resistance (Meg) Test. This is because electrical insulation begins to age as soon as it’s manufactured and aging causes deterioration in the performance of the insulation. Harsh operating environments will also cause further deterioration, especially where the electrical insulation is exposed to extreme operating temperatures, moisture, and chemical contamination. As a...

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