Abstract
For residual compensation of an earth-fault distance relay, a compensation method using only a reactive compensation factor (X0/X1) for the transmission line or a compensation method using both a reactive compensation factor (X0/X1) and a resistive compensation factor (R0/R1) which are widely used in Japan. In this paper, we present the reason why measuring distance errors of earth-fault distance relays occur even when these two residual current compensation methods are used. Furthermore, with the compensation method that uses both reactive and resistive compensation factors, we have shown that depending upon whether the ratio, (RG/RA) of the line to earth resistance (RG) to line to line resistance (RA) is larger or smaller than the resistive compensation factor (R0/R1) that an earth-fault distance relay will respectively either overreach or underreach for a double line to earth fault.
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.
