Abstract
The authors provide a method of determining the distance to location of the single-phase earth faults in networks with an isolated or compensated neutral. Determination of distance to fault location in medium voltage networks is a complex task in technical terms because of the strong and extensive network and large transient resistance values at the fault location. High accuracy of the proposed method is based on the voltage resonance phenomenon. There is a significant increase in current in the resonance mode, which is a reliable sign of the fault location. Resonance is provided with applying a high frequency current from an additional source of sinusoidal voltage connected to the mains. The distance to the location of the single-phase ground fault in this case is proportional to the length of the test signal wavelength. The principles of practical realization of the device for determining the distance to the fault location are presented. The developed method has been tested in a real power network. Tests have proved stability and accuracy of the determination of the distance to location of the single-phase ground fault at different values of transient resistance in the fault location.
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.
