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Application of Symmetric Conditions in the Simulation of High Voltage Power Transmission Models

The height of the power transmitting towers is usually in the range of 10m to 40m and the separation between two consecutive towers is about 200m to 400m. In addition, the area of the ground that needs to be considered in the simulation is large. Therefore, Finite Element Method (FEM) is not suitable for simulation of this application. Whereas Boundary Element Method (BEM) is best suited for these open region problems. This paper refers to...

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Renewable Energy News

New Solar Maker Enters U.S. Market

NuVision Solar, an American-owned and operated manufacturer of solar cells and modules, has announced its entry into the North American market. This strategic move aims to bolster domestic solar manufacturing and reduce reliance on imported solar components. Background The U.S. solar industry has...

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Utility News

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...

Lineman Safety

Distracted Driving Equals Disaster

Removing hazards caused from in-vehicle computing

BY SCOTT BALL, Motion Computing

No utility company would send a worker out in a truck with a known safety defect. North American electric utilities may not realize, however, that by failing to ensure that computing devices are used safely within their vehicles, management could be putting their employees and the public at risk. Even worse, if an accident was to occur, the utility could be held liable. Access to mobile computing is now the rule rather than the exception. The latest generation of mobile-friendly applications has made computing devices essential for connecting...

Electric Utility System Standards

How Ontario regulation can improve electrical safety

BY BILL KHASHFE, London Hydro

According to an Ontario Electrical Safety Report, 35 percent of the province’s electrical-related fatalities in the past 10 years were attributed to power-line contact. Equipment specifications and electric utility construction plans within Ontario’s power industry, only a few decades ago, lacked regulation. Each utility developed its own policies.

Currently, the global economy has created a marketplace in which equipment is manufactured to various standards and, occasionally, with no standards at all. As a result, governments have started to step in to regulate the safety of equipment used...

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Safety Best Practices

Flame-Resistant Clothing Misconceptions

Misconceptions about using flame-resistant clothing BY DAN BONELLI, Cintas Corporation According to Michael Hyland, chair of the National Electrical Safety Code (NESC) and vice president of engineering services with the American Public Power Association, a 1970s electrical utility commercial...
Safety Best Practices

The Guide to IEEE Utility Safety Standards

A comprehensive review of IEEE guidelines and documents BY JIM TOMASESKI, IEEE, NESC Main Committee, PAR Electric Every day, utility workers are risking their lives in work environments that involve high-risk activities such as working at extreme heights, managing or repairing energized...
Fall Protection

Fall Protection: The ABCs of Connecting Devices

A personal fall protection arrest system (PFAS) is comprised of three vital components: an anchorage, body wear (full-body harnesses), and a connecting device (a shock-absorbing lanyard or self-retracting lifeline). The safety of at-height workers depends on these three components, and each one...