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Emission-based condition monitoring technique for ZnO surge arrester

conference contribution
posted on 2004-01-01, 00:00 authored by K Wong, Yong XiangYong Xiang, Saeid NahavandiSaeid Nahavandi
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.


History

Title of proceedings

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]

Event

IASTED International Conference on Power and Energy Systems

Pagination

234 - 237

Publisher

Acta Press

Location

Clearwater Beach, Florida

Place of publication

Anaheim, Calif.

Start date

2004-11-28

End date

2004-12-01

ISBN-13

9780889864498

ISBN-10

0889864497

Language

eng

Publication classification

E1 Full written paper - refereed

Editor/Contributor(s)

A Domijan. Jr

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