Emission-based condition monitoring technique for ZnO surge arrester
Wong, K. L., Xiang, Yong and Nahavandi, Saeid 2004, Emission-based condition monitoring technique for ZnO surge arrester, in Seventh IASTED International Conference on Power and Energy Systems : special theme: distributed energy and demand response ; November 28 - December 1, 2004, Clearwater Beach, FL, USA ; [proceedings], Acta Press, Anaheim, Calif., pp. 234-237.
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Emission-based condition monitoring technique for ZnO surge arrester
Seventh IASTED International Conference on Power and Energy Systems : special theme: distributed energy and demand response ; November 28 - December 1, 2004, Clearwater Beach, FL, USA ; [proceedings]
In this paper, electromagnetic emission at the frequency range of 30MHz to 300MHz is used to detect physical defects on the 22kV outdoor zinc-oxide (ZnO) surge arresters. Different weather conditions combining with artificially created pollution were produced in a laboratory environment and measurements were recorded over a fixed period of time. Pollution due to fine dust particles has been created according to IEC standard under both wet and dry conditions. The aim is to detect the defects (bushing damage) when the surge arrester is subjected to various weather and surface condition. The collected electromagnetic signals were sampled and analyzed using analysis tools such as the autocorrelation coefficient and Wigner-Ville distribution. The results from the present paper indicate that electromagnetic radiation from the defects on surge arrester combining with the adequate analysis tools can be used as a valuable diagnostic tool for power system operator.
ISBN
0889864497 9780889864498
Language
eng
Field of Research
090699 Electrical and Electronic Engineering not elsewhere classified
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