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Published Article / ENY-ARTICLE-2008-216

Pollution Performance of 110 kV Metal Oxide Arresters

Chrzan, K L (Wroclaw University of Technology, Poland) ; Pohl, Z (Wroclaw University of Technology, Poland) ; Grzybowski, S (Mississippi State University, USA) ; Kohler, W (University of Stuttgart, Germany)


Abstract: Pollution test results of single unit 110 kV metal oxide surge arresters with porcelain housing according to the solid layer and salt fog methods are presented. During 6 hours of testing, the internal and external charge and temperature, along the varistor column were measured. The formation of single stable dry bands on the housing was, often observed, especially during salt fog tests. In such case, the varistor temperature can reach about 70°C. The simple electrical model of the arrester enabling calculations of voltages and currents as a function of arrester and pollution parameters is shown.

Keyword(s): pollution test ; varistor ; salt fog test
Note: IEEE Transactions on Power Delivery, Vol. 12, No. 2, April 1997, pp. 728-733

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Record created 2008-11-30, last modified 2008-12-01

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