Study of possibility of digital voltage transformers usage in fault location determination

Abstract

Innovative development of electric power systems is aimed at creating active-adaptive networks. Control of active-adaptive networks is based on usage of primary data measured at voltage and current transformers. In particular, the voltage transformers can be a source of information for devices determining fault location. The problem of fault location (FL) has always been and remains relevant because its solution may improve reliability of power supply. Overhead and cable high voltage power lines are most often-damageable elements of the electric power system. Power line cut-off is always accompanied by power undersupply or reduction of its reliability and quality. The paper investigates possibility of using transient voltage parameters obtained by digital voltage transformers for the FL on the cable lines.