Extracting the Resistive Current Component from a Surge Arrester`s Leakage Current without Voltage Reference

Vid Vončina; Jože Pihler; Miro Milanovič

Working Paper Article Version 1 This version is not peer-reviewed

Version 1 : Received: 12 January 2021 / Approved: 13 January 2021 / Online: 13 January 2021 (12:49:32 CET)

This article 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 (MOSA). 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 resistive component of leakage current, it is possible 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 authorised personnel through the surge arrester control centre.

IoT; leakage current; Metal Oxide Surge Arrester; remote monitoring; resistive component of leakage current.

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Extracting the Resistive Current Component from a Surge Arrester`s Leakage Current without Voltage Reference

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