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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...

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...

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....

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...

Conductors & Materials

Facing Wildfire? Choose Toughened Glass Insulators

Insulators under fire, what are we talking about? A line directly in the fire is considered as lost A line near the heat of a fire can be saved What is the condition of insulators on a line nearby a fire? Reliability of insulators during or after a fire is a key consideration for T&D...

Underground Distribution

Smart Transformers: Enhancing Grid Efficiency and Reliability

The evolving demands of modern power grids necessitate the adoption of advanced technologies that can provide enhanced efficiency, reliability, and flexibility. Smart transformers are at the forefront of this technological revolution, offering a range of capabilities that significantly improve the...

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High-Capacity, Energy-Efficient ACCC® Conductor Case Study

This project won EEI Transmission Project of the Year – 2016

Description: 240 circuit miles, 345 kV line, double bundle
Project: Replace 1,440 miles of ACSR conductor with ACCC

Objectives

Improve reliability (reduced sag and corrosion)
Increased capacity to serve growth (2X ACSR)
Improve grid resilience using high-strength composite core
Retain existing structures – to reduce capital costs and timeframe
Eliminate down time with live line reconductoring

See the Case Study in the Reliable...

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