Underground power cable environment on-line monitoring and analysis

Lyall, James, Nourbakhsh, Ghavameddin, & Zhao, Huan (2000) Underground power cable environment on-line monitoring and analysis. In Power Engineering Society Summer Meeting, 2000. IEEE, IEEE, Seattle, WA, USA, pp. 457-462.

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Knowledge of cable parameters has been well established but a better knowledge of the environment in which the cables are buried lags behind. Research in Queensland University of Technology has been aimed at obtaining and analysing actual daily field values of thermal resistivity and diffusivity of the soil around power cables. On-line monitoring systems have been developed and installed with a data logger system and buried spheres that use an improved technique to measure thermal resistivity and diffusivity over a short period. Results based on long term continuous field data are given. A probabilistic approach is developed to establish the correlation between the measured field thermal resistivity values and rainfall data from weather bureau records. This data from field studies can reduce the risk in cable rating decisions and provide a basis for reliable prediction of “hot spot” of an existing cable circuit

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ID Code: 57043
Item Type: Conference Paper
Refereed: Yes
Keywords: Conductivity, cables, Soil moisture, Thermal resistance, Underground cables, thermal diffusivity, underground cables, buried spheres, cable parameters, hot spot, on-line monitoring, probabilistic approach
DOI: 10.1109/PESS.2000.867629
ISBN: 0780364201
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Electrical and Electronic Engineering not elsewhere classified (090699)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2000 IEEE
Deposited On: 10 Feb 2013 23:36
Last Modified: 11 Feb 2013 13:55

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