Search for dissertations about: "high-voltage"

Showing result 16 - 20 of 242 swedish dissertations containing the word high-voltage.

  2. 16. Computer Modelling of Electrophysical Phenomena in High Voltage Insulation

    Author : Yuriy Serdyuk; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectric properties; discharge plasma; composite material; computer model; numerical simulations; electrical discharge;

    Abstract : Different kinds of dielectrics are used for high voltage insulation. In most of the cases, they are combined into complex insulating systems forming macro- and micro-scale composite structures. READ MORE

  4. 17. Biofilms on silicone rubber for outdoor high voltage insulation

    Author : Stina Wallström; Sigbritt Karlsson; Paul Gatenholm; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; polymer technology; Kemiteknik; Chemical engineering; Kemiteknik;

    Abstract : Silicone rubber high voltage insulators are sometimes colonised by microorganisms which form a biofilm on the surface of the infected unit. In this work insulators exposed to the outdoor environment in Sweden, Sri Lanka and Tanzania respectively have been studied. READ MORE

  5. 18. Vertical High-Voltage Transistors on Thick Silicon-on-Insulator

    Author : Ulrich Heinle; Gehan Amaratunga; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; SOI; vertical DMOS; trench isolation; power electronics; integration; on-resistance; capacitive coupling; self-heating; switching; Elektronik; Electronics; Elektronik; Elektronik; Electronics;

    Abstract : More and more electronic products, like battery chargers and power supplies, as well as applications in telecommunications and automotive electronics are based on System-on-Chip solutions, where signal processing and power devices are integrated on the same chip. The integration of different functional units offers many advantages in terms of reliability, reduced power consumption, weight and space reduction, leading to products with better performance at a hopefully lower price. READ MORE

  6. 19. High Voltage Insulation Diagnostics Utilizing HTS-SQUID Based Amplifiers

    Author : Thomas Eriksson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dielectric response; current amplifier; partial discharge; Rogowski sensor; SQUID; voltage amplifier;

    Abstract : In the design and development of high voltage insulation systems, different diagnostic methods are often used for system characterization. It is therefore crucial to continuously improve existing methods and to develop new ones. READ MORE

  7. 20. Enabling socio-technical transitions – electric vehicles and high voltage electricity grids as focal points of low emission futures

    Author : Martin Albrecht; Åsa Svenfelt; Göran Finnveden; Jonas Åkerman; Anna Kramers; Måns Nilsson; Anna Bergek; KTH; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Socio-technical system; innovation system; transition; MLP; TIS; low emission future; electric vehicles; high voltage transmission grid; Sweden; Norway; Denmark; Finland; United Kingdom; Planering och beslutsanalys; Planning and Decision Analysis;

    Abstract : Today humankind is facing numerous sustainability challenges that require us to question CO2 intensive practices like those present in the transport and energy sector. To meet those challenges, many countries have adopted ambitious climate targets. Achieving such targets requires an understanding of the wider socio-technical context of transitions. READ MORE