Sökning: "Voltage stabilisers."

Hittade 4 avhandlingar innehållade orden Voltage stabilisers..

  1. 1. Voltage Stabilisers for XLPE Cable Insulation

    Författare :Villgot Englund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polyethylene; insulation; electrical treeing; degradation; cable; stabilisers; XLPE;

    Sammanfattning : 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. LÄS MER

  3. 2. New Test Arrangement for Measuring Electrical Treeing in Polymers

    Författare :Ramona Huuva; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Voltage stabilisers.; Wire-plane configuration; Polyethylene LDPE; Needle electrode; XLPE ; Electrical treeing;

    Sammanfattning : Electrical treeing in high voltage cable insulation has been studied for a number of years and today the mostly used laboratory test set-up is the needle-plane electrode configuration. In this thesis a different type of electrode configuration is described. LÄS MER

  4. 3. Characterising Resistance to Electrical Treeing in New XLPE-Based Materials for High-Voltage Cables

    Författare :Anette Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrical treeing; partial discharge; cross-linked polyethylene; voltage stabiliser; degradation; power cables;

    Sammanfattning : This work looks into electrical treeing in cross-linked polyethylene-based materials (XLPE), where the ability to resist tree development is considered as an indicator of improved applicability for insulation in high voltage power cables. The thesis presents results of a twin PhD project involving joint work of two students. LÄS MER

  5. 4. Electrical properties of thermally aged polyethylenes and of polyethylenes containing voltage stabilisers

    Författare :Patrik A. Roseen; KTH; []
    Nyckelord :;

    Sammanfattning : The use of polyethylene (PE) in electrical applications athigh voltages requires a certain resistance of the material topartial discharges (PDs). The space charge behaviour of PE isof great importance when PE is used as insulator inhigh-voltage DC cables. LÄS MER