J. Fabian, R. Woschitz, M. Muhr, C. Krause, U. Piovan
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引用次数: 4
Abstract
Since the beginning of the 20th century, the main insulation of power transformers has been built up efficiently with oil-impregnated cellulose, and since the 1960ies as layered oil/board-insulation. The latter represents a hybrid system, consisting of oil filled gaps subdivided by pressboard barriers.