Fault locator based on line current differential relays synchronized measurements

This paper presents new multi-ended method for locating faults on the transmission lines and incorporated into line current differential relay. Single-ended methods are impacted by too many factors, which makes them unreliable for operating personal. It was demonstrated in this paper that new fault location method based on the synchronized line current differential measurements gives significant advantage over single-ended methods in accuracy and provides accuracy comparable with a travelling wave fault locators at no extra cost.