Diagnostics of high-voltage insulation of the railway transport overhead system by the method of spaced antennas

Abstract

Abstract The growth in freight traffic transported throughout the entire network of Russian Railways, and in the Eastern Polygon in particular, is constantly growing, so an increase in train traffic reduces the time for technological work at railway infrastructure facilities. Consequently, it is necessary to develop methods for assessing the state of infrastructure facilities virtually without using “track possession”. In this regard, the article proposes to improve the existing remote method for diagnosing high-voltage insulation of the overhead system (registration of ultraviolet and thermal radiation with a special device), enhancing it with additional measurement. The proposed solution is to assess the state of high-voltage insulation by measuring electromagnetic radiation, which will increase the accuracy of diagnostics. As for a technological solution – to record a signal (partial discharges and surface partial discharges) with three antennas (induction electrometric converters), it is aimed at improving the accuracy of localization of a faulty string of insulators.