Abstract
Based on distributed parameters line model, a current differential protection for extra high voltage and ultra high voltage (EHV/UHV) transmission lines is proposed in this paper. The distributed capacitance current in such lines has a severe negative impact on relaying of current differential protection. Thus the influence of distributive capacitive current on its protection during line to ground fault is carried out. In order to verify that current differential protection is influenced by capacitive current, capacitive reactance of transmission line is increased so that capacitive effect of line is reduced. An extensive simulation is carried out using PSCAD. The result shows that compensation of capacitive current in lines is necessary in proposed method to suppress its adverse effect on relaying of healthy phase.
Sign-in/Register to access full text options 
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.
