The influence of atmospheric conditions on the leakage current of ceramic insulators on the Colombian Caribbean coast
Castillo Sierra, Rafael, Oviedo-Trespalacios, Óscar, Candelo, John E., & Soto, Jose D. (2015) The influence of atmospheric conditions on the leakage current of ceramic insulators on the Colombian Caribbean coast. Environmental Science and Pollution Research, 22, pp. 2526-2536.
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The contamination of electrical insulators is one of the major contributors to the risk of operation outages in electrical substations, especially in coastal zones with high salinity levels and atmospheric pollution. By using the measurement of leakage-currents, which is one of the main indicators of contamination in insulators, this work seeks to the determine the correlation with climatic variables, such as ambient temperature, relative humidity, solar irradiance, atmospheric pressure, and wind speed and direction. The results obtained provide an input to the behaviour of the leakage current under atmospheric conditions that are particular to the Caribbean coast of Colombia. Spearman’s rank correlation coefficients and principal component analysis are utilised to determine the significant relationships among the different variables under consideration. The necessary information for the study was obtained via historical databases of both atmospheric variables and the leakage current measured in over a period of one year in a 220-kV potential transformer insulator. We identified the influencing factors of temperature, humidity, radiation, wind speed and direction on the magnitude of the leakage current as the most relevant.
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|Item Type:||Journal Article|
|Keywords:||Pollution, Insulators, Leakage current, Atmospheric variables, Environmental analysis, Pollution monitoring|
|Subjects:||Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Monitoring (050206)
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) > MANUFACTURING ENGINEERING (091000) > Manufacturing Safety and Quality (091008)
|Divisions:||Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
|Copyright Owner:||Copyright 2015 Springer-Verlag Berlin Heidelberg|
|Copyright Statement:||The final publication is available at Springer via http://dx.doi.org/10.1007/s11356-014-3729-3|
|Deposited On:||05 Nov 2014 22:25|
|Last Modified:||27 Apr 2015 12:23|
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