| Autor: |
Castillo Sierra R; Department of Electrical and Electronic Engineering, Universidad del Norte, Km 5 Vía Puerto Colombia, Barranquilla, Colombia, rcastilloj@uninorte.edu.co., Oviedo-Trespalacios O, Candelo JE, Soto JD |
| Jazyk: |
angličtina |
| Zdroj: |
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2015 Jul; Vol. 22 (13), pp. 9749-58. Date of Electronic Publication: 2015 Jan 31. |
| DOI: |
10.1007/s11356-015-4153-z |
| Abstrakt: |
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 focuses 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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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