Automated transmission line fault analysis using synchronized sampling at two ends

Abstract

This paper introduces a new approach to power system fault analysis using synchronized sampling. A digital fault recorder with a Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a power transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.