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Q&A: Transmission Line Inspection Using Robotics

A: Hydro-Québec’s power transmission system, the most extensive in North America, covers close to 34,000 km. Similar to many power utilities, we need thorough infrastructure inspections to ensure system reliability, availability, and performance.Therefore, we have, developed robotic...

Infrastructure & Technologies

IN THE DRIVER’S SEAT AND AHEAD OF THE CURVE ON EPC PROJECTS

Based just south of Denver in Castle Rock, Colorado, Great Southwestern Construction, Inc. (Great Southwestern) opened its doors as a small, family-owned business in 1977, specializing in power delivery projects throughout the desert Southwest and Rocky Mountain region. In the mid 1980’s, the...

Case Study

EFACEC case study

The EFACEC Group is leading the supply of integrated solutions and equipment in the market of power generation, transmission and distribution. The Group forms a complete value chain, from building turnkey projects to equipment manufacture, where integrated solutions are developed and designed in...

Wire and Cable

Ethernet Cable Selection for Utilities

Electric utilities are constantly searching for the most efficient, reliable and cost-effective methods to deliver electricity to customers. A vision for accomplishing this is the migration of the electrical grid from a reliable, but inflexible system to the Smart Grid, which promises adaptability...

Pole Line Hardware

Insulators' ageing in North America - How about testing them?

Sediver has established in the USA an assembly factory for glass insulators in 2017 but also, and perhaps more interesting for some engineers, a laboratory capable of performing all the tests required by the world’s standards. Large test campaigns have already been conducted in this...

Vegetation Management

The Vegetation Management Program

How to mitigate risk and ensure reliability BY SARA SANKOWICH, Unitil For most North American electric utilities, vegetation management (VM) is a critical part of system maintenance. Utilities strive to maintain normal conditions and ensure the system can withstand normal weather events. Even on a...

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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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