Assessment of the risk of failure of high voltage substations due to environmental conditions and pollution on insulators
Sierra, Rafael Castillo, Oviedo-Trespalacios, Óscar, Candelo, John E., & Soto, Jose D. (2015) Assessment of the risk of failure of high voltage substations due to environmental conditions and pollution on insulators. Environmental Science and Pollution Research, 22(13), pp. 9749-9758.
Pollution on electrical insulators is one of the greatest causes of failure of substations subjected to high levels of salinity and environmental pollution. Considering leakage current as the main indicator of pollution on insulators, this paper focus on establishing the effect of the environmental conditions on the risk of failure due to pollution on insulators and determining the significant change in the magnitude of the pollution on the insulators during dry and humid periods. Hierarchical segmentation analysis was used to establish the effect of environmental conditions on the risk of failure due to pollution on insulators. The Kruskal-Wallis test was utilized to determine the significant changes in the magnitude of the pollution due to climate periods. An important result was the discovery that leakage current was more common on insulators during dry periods than humid ones. There was also a higher risk of failure due to pollution during dry periods. During the humid period, various temperatures and wind directions produced a small change in the risk of failure. As a technical result, operators of electrical substations can now identify the cause of an increase in risk of failure due to pollution in the area. The research provides a contribution towards the behaviour of the leakage current under conditions similar to those of the Colombian Caribbean coast and how they affect the risk of failure of the substation due to pollution.
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|Item Type:||Journal Article|
|Keywords:||Reliability, Risk of failure, Atmospheric pollution, Leakage current, Insulator|
|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|
|Copyright Statement:||The final publication is available at Springer via http://dx.doi.org/10.1007/s11356-015-4153-z|
|Deposited On:||10 Aug 2015 02:00|
|Last Modified:||05 Feb 2016 06:15|
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