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Erschienen in:
1988 | OriginalPaper | Buchkapitel
Influence of Structure Geometry, Screens and Eddy Currents on the Critical Distance of Tank Wall in Power Transformers
verfasst von : A. Savini, J. Turowski
Erschienen in: Electromagnetic Fields in Electrical Engineering
Verlag: Springer US
Enthalten in: Professional Book Archive
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It is generally known that at small distance of a tank wall from transformer windings the state and position of tank wall strongly effects the leakage field configuration. At larger distance this influence is practically negligible and e.g. measurements of stray losses in a tank are possible with the short-circuit test “with and without tank”. Such a “critical” tank wall distance has been investigated with both the reluctance network and the finite element method for normal large transformers with various structures and screens. The existence of such a characteristic distance and its influence on leakage field phenomena has been investigated and evaluated.