Sökning: "stand-by operation"

Hittade 3 uppsatser innehållade orden stand-by operation.

  1. 1. Förbikoppling av stationer vid reinvesteringsprojekt i transmissionsnätet

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Aron Johanson; [2023]
    Nyckelord :Mobile integrated gas-insulated switchgear; Elförsörjning; Förbikoppling; Kraftsystem; Ledningssäng; Nätstation; Nätutveckling; Reinvestering; Stationsförnyelse; Ställverk; Svenska kraftnät; Transmissionsnät;

    Sammanfattning : Svenska kraftnät is responsible for the operation and development of the Swedish transmission grid. A large number of substations in the transmission grid are approaching their expected service lifetime and must be renewed in the coming years. When renewing substations, total and partial outages in operation are often unavoidable. LÄS MER

  3. 2. Benefits of using Intelligent Electric Water Heaters on an Island in theAzores, Portugal

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Kush Rakhsia; [2022]
    Nyckelord :;

    Sammanfattning : The application of Information and Communication Technologies (ICT) devices to Electric Water Heater (EWH) can increase its energy efficiency and allow the EWH to deliver various services to the customer as well as the utilities such as power plant owners and distributionsystem operator (DSO). Such ICT-enabled EWH is termed as smart EWH. LÄS MER

  4. 3. Minimizing Transformer No-Load Losses at Hydropower Plants : A Study of Effects from Transformer Switch-Off During Stand-by Operation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för elektroteknik

    Författare :Elin Luedtke; [2021]
    Nyckelord :step-up transformer; transformer switch-off; stand-by operation; idle operation; transformer winding; inrush current; fatigue stress; fatigue failure; S-N curve; transformer thermal cycling; thermal time constant; saving potential in hydropower; hydropower plant;

    Sammanfattning : Hydropower is the most important power balancing resource in the Swedish electrical power system, regulating the power supply to match the load. Consequently, several hydropower plants have periods of stand-by operation where the power production is absent but where several devices within a plant are still active. LÄS MER