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Radiometric wireless sensor network monitoring of partial discharge sources in electrical substations

Zhang, Yong and Upton, David and Jaber, Adel and Ahmed, Hamd and Saeed, Bahghtar and Mather, Peter and Lazaridis, Pavlos and Mopty, Alexandre and Tachtatzis, Christos and Atkinson, Robert and Judd, Martin and Vieira, Maria Fatima Queiroz and Glover, Ian (2015) Radiometric wireless sensor network monitoring of partial discharge sources in electrical substations. International Journal of Distributed Sensor Networks, 2015. ISSN 1550-1329

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Abstract

A Wireless Sensor Network (WSN) with the potential to monitor and locate partial discharge (PD) in high-voltage electricity substations using only received signal strength (RSS) is proposed. The advantages of an RSS-based operating principle over more traditional methods (e.g. Time-of-Arrival and Time-Difference-of-Arrival) are described. Laboratory measurements of PD that emulate the operation of a PD WSN are presented. The hardware architecture of a prototype PD WSN is described and the particular challenge of an RSS-based location approach in an environment with an unknown, and spatially varying, path-loss index are discussed. It is concluded that an RSS-based PD WSN is a plausible solution for the monitoring of insulation integrity in electricity substations.