Essays about: "Pressboard"
Showing result 1 - 5 of 6 essays containing the word Pressboard.
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1. Finite Element Simulation of Moisture Transport in Cellulose Insulation Material of Power Transformers
University essay from Uppsala universitet/Tillämpad mekanikAbstract : Power Transformers are an important and complex part of the electrical transmission technology. One of the main producers of these transformers worldwide is Hitachi Energy, for which this work has been done. READ MORE
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2. Influence of structural and materials properties on the flexural strength of laminated high-density cellulose fiberboards
University essay from KTH/HållfasthetsläraAbstract : Laminated pressboard is a structural electrical insulation material used in power transformers. Typical applications are areas in the power transformers where high mechanical forces are present such as pressrings or winding tables and cleats which support the electrical cables connecting the transformer windings to tap-changes and bushings. READ MORE
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3. A micro-CT investigation of density changes in pressboard due to compression
University essay from Uppsala universitet/Tillämpad mekanikAbstract : Pressboard, a high-density cellulose-based product, is used both as load bearing structures and dielectric insulation in oil-filled power transformers. During transformer operation, mechanical forces and vibrations are applied on the material. READ MORE
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4. Synchrotron tomography of pressboard during in-situ compression loading : Construction of compression rig, image acquisition procedure and methods for image processing
University essay from Uppsala universitet/Tillämpad mekanikAbstract : Pressboard, a high density cellulose-based material used for insulation in high voltage power transformers, exhibits stress relaxation during compressive loading. Investigating the micro-mechanical mechanisms responsible for the relaxation can lead to modifications of the production process to control the behaviour of the material. READ MORE
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5. Mechanical Characterization and Simulations of Laminated Pressboard.
University essay from KTH/Hållfasthetslära (Inst.)Abstract : Pressboard is a cellulose-based material, which is used in transformers as insulation as well as for providing structural support. The micro-structure of pressboard consists of networks of cellulose fibers, which has good mechanical properties as well as exceptional electrical insulation properties. READ MORE
