Non-intrusive, self-supplying and wireless sensor for monitoring grounding cable in smart grids

[Display omitted] •An innovative sensor to monitor the presence of grounding cable is presented.•Different self-supply alternatives for the sensor were studied.•The sensor designed is non-intrusive and wireless in order to be introduced in power systems.•The energy demand for the system’s communicat...

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Bibliographic Details
Published in:Sensors and actuators. A. Physical. 2020-12, Vol.316, p.112417, Article 112417
Main Authors: Rodriguez, Fermin, Sanchez-Guardamino, Ignacio, Martin, Fernando, Fontan, Luis
Format: Article
Language:English
Subjects:
Cables
Electric power distribution
Energy distribution
Failure analysis
Grounding monitor
Non-intrusive sensor
Self-supply
Sensors
Smart grid
Smart grid technology
Theft
Wireless
Wireless communications
Wireless networks
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Summary:[Display omitted] •An innovative sensor to monitor the presence of grounding cable is presented.•Different self-supply alternatives for the sensor were studied.•The sensor designed is non-intrusive and wireless in order to be introduced in power systems.•The energy demand for the system’s communications was optimized to make it as efficient as possible. Energy distribution companies have experienced an increase in catastrophic failures in power systems due to the theft of grounding cable. The objective of this study is to develop an innovative technology which is able to detect the absence of grounding cable in medium and high voltage systems. The wireless technology developed communicates periodically with the system’s central control unit to ensure reliable and safe operation of the installation. Because it is not economically profitable to modify power systems’ infrastructure, this novel sensor is non-intrusive as well as self-supplying. Based on the validation step’s results, we conclude that the sensor is ready to be tested in smart grid equipment to monitor the state of grounding cables.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2020.112417