Search for dissertations about: "high voltage insulation materials"

Showing result 1 - 5 of 45 swedish dissertations containing the words high voltage insulation materials.

  1. 1. Voltage Stabilisers for XLPE Cable Insulation

    Author : Villgot Englund; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polyethylene; insulation; electrical treeing; degradation; cable; stabilisers; XLPE;

    Abstract : The demand for energy in the Western world has istorically increased steadily and a steady increase is forecasted for the next decades. This steady increase together with the huge merging markets in India and China are setting new standards for the energy transmission. READ MORE

  2. 2. Functional polyethylene-aluminum oxide nanocomposites for insulation materials in high-voltage direct-current (HVDC) cables

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Dongming Liu; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC cables; high voltage insulation materials; Fe3O4 core-shell nanoparticles; Silane silsesquioxane; Stöber surface modification; Al2O3 nanoparticles; Polyethylene; Aluminium oxide; Nanocomposites; Interfacial adhesion; Particle dispersion; Mechanical properties; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : .... READ MORE

  3. 3. Evaluating Resistance to Corona and Ozone in Polymeric Materials for High Voltage Outdoor Applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Bin Ma; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ozone; housing material; nano-composite; corona; Outdoor insulation; composite insulation;

    Abstract : Resistance to corona discharges and ozone, the well known ageing factors for polymeric materials used in outdoor insulation, has been listed as being of great importance among twelve properties identified by CIGRE WG D1.14 – Material Properties for Non-ceramic Outdoor Insulation. READ MORE

  4. 4. Effects of Corona and Ozone Exposure on Properties of Polymeric Materials for High Voltage Outdoor Applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Bin Ma; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface resistivity; silicone rubber; nanocomposite; Outdoor insulation; ozone treatment; dielectric response; hydrophobicity; corona treatment; composite insulation; volume resistivity; ageing.; mechanical strength;

    Abstract : Despite the past four decades of service experiences with polymeric insulators in power systems all over the world, an adequate standard allowing for proper selection of polymeric materials for applications in high voltage outdoor environments has still been lacking. Therefore CIGRE Working Group D1. READ MORE

  5. 5. Voltage Stabilizers: From Design to Synthesis, Processing and Electrical Characterization

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Markus Jarvid; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Polyethylene; Degradation; XLPE; Electrical treeing; Voltage stabilizer; Cable; Insulation;

    Abstract : Voltage stabilizers are additives capable of inhibiting electrical treeing; a degradation mechanism for insulation materials subjected to strong divergent electric fields. The intended use is in cross-linked polyethylene (XLPE) high voltage power cable insulation where minute defects in the manufacturing process can give rise to the conditions needed for the initiation of treeing, which in the worst case scenario leads to failure of the insulation system with blackouts and expensive repairs as a consequence. READ MORE