Sökning: "polymeric insulators"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden polymeric insulators.

  1. 1. Long-term exposure of polymeric insulators to coastal contamination at Anneberg test station

    Författare :Torbjörn Sörqvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SIR insulators; polymeric insulators; EPDM rubber insulators; leakage currents; dry-bands; hydrophobicity; flashovers;

    Sammanfattning : .... LÄS MER

  3. 2. Silicone Rubber Insulators: Impacts of Material Formulation in Coastal Environment

    Författare :Tomas G Gustavsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface characterization; aging; filler level; outdoor insulation; leakage current measurements; material formulation; silicone rubber; polymeric insulators; coastal environment; polydimethylsiloxane PDMS ;

    Sammanfattning : This thesis deals with influences of material formulation on the performance of silicone rubber high voltage insulators in a coastal environment. Samples and insulators with known differences in material compositions have been used in this task. In the first step, a screening test with cylindrical samples was initiated. LÄS MER

  4. 3. Polymeric Outdoor Insulators - A Long-term Study

    Författare :Torbjörn Sörqvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The long-term performance and the material state of polymeric insulators were examined from December 1987 to February 1997. To a large extent the study was conducted at Anneberg field station, on the west coast of Sweden. The project comprised a great number of commercially available polymeric insulators from several prominent manufacturers. LÄS MER

  5. 4. New innovative methods for non-intrusive optical diagnostics of high-voltage insulator materials

    Författare :Magnus Bengtsson; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atom- och molekylärfysik; Atomic and molecular physics; akustik; optik; optics; acoustics; Electromagnetism; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi; fluorescence; optical diagnostics; high-voltage insulation; remote sensing; polymeric insulators; lidar; biological contamination; Gases; fluid dynamics; plasmas; Gaser; fluiddynamik; plasma; Energy research; Energiforskning; Elektromagnetism;

    Sammanfattning : The purpose of this PhD thesis work has been to develop optical techniques that can help utility engineers for assessing the state of insulators in service and in a laboratory. The possibilities to use remote laser induced fluorescence for detection and imaging of biological growth such as algae and fungi have been investigated. LÄS MER

  7. 5. Outdoor aging of silicone rubber formulations in coastal environment

    Författare :Tomas G Gustavsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material forulation; coastal environment; polydimethylsiloxane PDMS ; filler level; outdoor insulation; aging; silicone rubber; polymeric insulators; surface characterization; leakage current measurements;

    Sammanfattning : .... LÄS MER