2012 – 07 – 24 : Dynamic Line Rating
Hosted by IEEE Trinidad and Tobago Section’s Power and Energy Society, this presentation examines the possibility of implenting dynamic line rating in an electric utility and addresses the associated concerns and advantages. The presentation will entail a 20 minute presentation by Ms. Laurel Bhairosingh with a 20 minute question and answer session to follow.
Transmission lines can be rated statically or dynamically. The static line rating (SLR) of transmission lines utilize very conservative values for ambient conditions like wind speed and temperature. Dynamic line rating (DLR) use real time values for ambient conditions to establish the real limit of operability for transmission lines. Wind speeds affect the rate at which a conductor is cooled while ambient temperature influences the operating temperature of the conductor. The high cost of new transmission circuits as well as transmission bottlenecks are now forcing utilities to challenge the static thermal ratings of transmission lines as overly conservative. DLR can bring financial benefits to an electric utility by deferring cost of upgrades by a number of years, improving asset management strategies.
Biography: Laurel Bhairosingh is pursuing a Bachelor of Science degree in Electrical and Computer Engineering at the University of the West Indies. She is currently continuing her research in the field of Power Line Rating, particularly Dynamic Power Line Rating and its impact on power system performance and asset management. She has been a member of the IEEE for the past 2 years.