Abstract
Abstract Successful selective- (or single-) pole switching (SPS) of faulted EHV transmission lines depends on rapid secondary arc extinction. Two factors which govern the probability of secondary arc extinction are the effective value of the steady-state secondary arc current and the rate of rise of the recovery voltage. Successful application of SPS requires that the magnitude of the secondary arc current should be kept below a certain level. The purpose of this work is to present a method for the computation of the effective value of the secondary arc current on a double-circuit transmission line employing SPS. The model developed for the double-circuit line takes into account the mutual coupling between the two individual circuits. A typical 400 kV double-circuit line is considered and the effective value of the secondary arc current is evaluated for both transposed and untransposed configurations of the line. Then a comparison with the results available from simple network analysis is made.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
