The National Electrical Manufacturers Association (NEMA) is produced "Vids for Grids: New Media for the New Energy Workforce" videos. The Vids for Grids is one of 54 Smart Grid workforce training programs funded by the Department of Energy through the American Recovery and Reinvestment Act of 2009, commonly referred to as ARRA or the Stimulus.
The Dynamic Line Ratings Video
A key part of the national electrical grid is the transmission of electricity over large distances from the point of its generation to the point of use. This is becoming increasing important as renewable energy sources become a significant part of the generation mix. The quantity of electricity that can be transported over a specific line is a function of many variables. In this edition of Vids4Grids we visit Oncor where they are employing Dynamic Line Ratings technology from Nexans North America to increase the capacity of their transmission system on a real time basis.
The Valley Group is the world leader in thermal rating systems for overhead transmission lines. Dynamic line rating is a recognized enabling technology for the Smart Grid, allowing utilities to know the true capacity of transmission lines in real time. Benefits include improving network reliability, relieving congestion, accelerating integration of wind farm generation into the existing network, and improving grid efficiency. Without accurate real time measurements provided by dynamic rating systems, utilities set their line ratings-the maximum capacity of their lines-based on inaccurate static weather assumptions, frequently leading to inefficient network usage and incorrect perceptions of line congestion, while potentially risking transmission network reliability and public safety. The Valley Group is the established industry leader in developing thermal rating technologies, software, and applications, having provided dynamic line ratings to over 100 utilities on 5 continents. Our new focus is to adapt the application of proven dynamic line rating technologies to the evolving Smart Grid environment.
