Sprotno ocenjevanje stanja prenapetostnih odvodnikov v elektroenergetskem omrežju : doktorska disertacija

slovenian

doktorska dela

2021

leakage current   metal oxide surge arrester   remote and real time monitoring   resistive component of leakage current

Univerza v Mariboru, Fakulteta za elektrotehniko računalništvo in informatiko

This doctoral dissertation presents the development of the theoretical background and the design of an electronic device for monitoring the condition of a gapless Metal Oxide Surge Arrester. The device is intended to be used online. Due to the inaccessibility and possible remote location of most surge arresters, it is equipped with a communication system, allowing the device to convey the measurement of the surge arrester characteristics under any conditions. By gathering measurements of the surge arrester’s total leakage current, it is possible, on the basis of the ration between the total leakage current and the resistive component of the leakage current, to determine the condition of the MOSA. After interpreting the results, these can be sent via a data transfer unit to a server, which, in turn, sends it onward to the authorized personnel through the surge arrester control center.

07.08.2023