PROPOSALS FOR THE ESTABLISHMENT OF A REMOTE DIAGNOSTIC DEVICE FOR CONTROL OF THE TECHNICAL CONDITION OF OVERHEAD TRANSMISSION LINES 6-35 kV

Abstract

Today, the main activity of Ukrainian electricity companies is to meet the ever-growing needs of Ukrainian consumers in quality and reliable electricity supply. For this purpose, constant work is carried out on the reconstruction of electrical networks and construction of new energy facilities on the basis of a new regulatory framework adapted to world standards. The article proposes to determine the location of damage to a branched power line with several power sources, namely, to create a device for diagnosing power lines. The device for diagnosing power lines is designed to isolate the damaged branch in the branched overhead power lines, and measure the distance to the place of damage. The operation of the device is that the meters of inhomogeneity of cables and lines measure the delay time of the probing pulses reflected from the place of damage of the branched power lines, from the beginning of the main line and from its end. Next, the total delay time of the probing pulses reflected from the place of damage of the branched transmission line is compared with the time of passage of the probing pulses on the main transmission line, if the delay time is equal, the damage is on the main transmission line. branch. Then, based on the obtained measurements, the exact location of the damage on the power line is calculated. The technical result is to increase the accuracy of determining the location of damage on branched transmission lines with multilateral power supply by attracting a priori information (known all the inhomogeneities of a good transmission line) and the location of the transmission line inhomogeneity (branching) and measuring . The proposed approach does not involve the use of specific instruments for measuring current and voltage values, but is based only on measuring the delay time of probing pulses using line inhomogeneity meters. Determining the importance of constant diagnostics of the technical condition of power lines in the article shows one of the real ways to create a remote diagnostic device that can be implemented on modern elements and computer technology.