Application and evaluation of short-term emergency ratings for double-circuit transmission lines


Show simple item record Kim, S. D. Kim, S. R. Morcos, Medhat M. 2012-06-26T18:00:35Z 2012-06-26T18:00:35Z 2012-06-26
dc.description.abstract Emergency ratings have been introduced for operating transmission lines safely and supplying current capacity efficiently, as well as controlling load flow when occurring line faults. In this paper, short-term emergency ratings are calculated by using thermal equilibrium equation for bared conductors in double-circuit transmission lines. Overhead transmission lines installed in double-circuit have been extensively utilized worldwide to enhance power transmission. Such lines show various advantages in increasing transmission capacity and decreasing power loss as well as being operated flexibly during a contingency. Even when a fault occurs in one circuit, the healthy circuit can supply power continuously during emergency without outage. The utilization of such double-circuit transmission lines during normal and/or emergency operations is described. Maximum normal operating current based on fault duration, maximum allowable temperature of conductor, and thermal line ratings are evaluated. Several performances of dip/clearance affecting short-term emergency rating are also presented. en_US
dc.relation.uri en_US
dc.rights This is an electronic version of an article published in Electric Power Components and Systems, 40(7), 729-740. Electric Power Components and Systems is available online at: en_US
dc.subject Double-circuit transmission lines en_US
dc.subject Short-term emergency rating en_US
dc.subject Thermal line rating en_US
dc.title Application and evaluation of short-term emergency ratings for double-circuit transmission lines en_US
dc.type Article (author version) en_US 2012 en_US
dc.citation.doi doi:10.1080/15325008.2012.658598 en_US
dc.citation.epage 740 en_US
dc.citation.issue 7 en_US
dc.citation.jtitle Electric Power Components and Systems en_US
dc.citation.spage 729 en_US
dc.citation.volume 40 en_US
dc.contributor.authoreid morcos en_US

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