Low-voltage cable systems: aluminium conductor corrosion and online monitoring

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Abstract

The role of the low-voltage grid is changing from being just the final step in the power supply chain to facilitator of renewable energy generation on residential level. Therefore, its importance is steadily increasing in terms of grid reliability. Parts of the low-voltage grid, however, are ageing. These developments increase the need of distribution system operators to further find economically feasible ways to monitor and diagnose their low-voltage assets. Firstly, this paper looks into degradation mechanisms, in particular corrosion of aluminium conductors, a phenomenon that may, for instance, occur in case a damage is inflicted to a cable without directly causing a loss of connection. Secondly, the presence of high peak currents with short duration are being measured in the field. The research aims to create better understanding of the relation between the occurrence of peak currents and subsequent failures in the connection.
Original languageEnglish
Title of host publication10th International Conference on Insulated Power Cables
Number of pages6
Publication statusPublished - Jun 2019
Event10th International Conference on Insulated Power Cables - Palais des Congrès, Versailles, France
Duration: 23 Jun 201927 Jun 2019
http://jicable19.com/

Conference

Conference10th International Conference on Insulated Power Cables
Abbreviated titleJicable'19
CountryFrance
CityVersailles
Period23/06/1927/06/19
Internet address

Keywords

  • Aluminium
  • Corrosion
  • Dry-band arcing
  • Electric breakdown
  • Fault currents
  • Power cable insulation
  • Power system monitoring
  • Conductors

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