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Hittade 5 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Analys av vibrationsdata från lindingskopplare

    M1-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Albin Junehammar; [2023]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 2. Analysis of factory test data of on-load tap-changers for power transformers

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Oscar Stenhammar; [2021]
    Nyckelord :on-load tap-changer; OLTC; power transformer;

    Sammanfattning : On-load tap-changers (OLTC) are devices in the power grid that keeps the voltage level constant for consumers, regardless of the power demand. Hitachi ABB Power Grids, producer of the OLTC family named VUC, guarantees 30 years of lifetime. Such a pledge requires high standard devices. LÄS MER

  4. 3. Dielectrics calculation of on-load tap-changer VUCL

    M1-uppsats, KTH/Hållbar produktionsutveckling (ML)

    Författare :Seywan Karimi; [2021]
    Nyckelord :Dielectrics; tap-changer; transformer; lightning impulse levels LI ; system voltage; direct current; resistor; and epoxy material; Dielektriska; lindnings kopplar; transformator; blixtimpuls nivåer LI ; systemspänning; likström; motstånds; epoximateria;

    Sammanfattning : This is a bachelor's thesis in Mechanical engineering. The main topic of the thesis is the electrical calculation of the tap changer's shield. Although there are many kinds of tap-changers, this study focuses on VUCL models. The theoretical background of the thesis is that the new shield is suitable and useable in all VUCL models. LÄS MER

  5. 4. Distribution On Load Tap Changer Control Using IEC61850 Client/Server Architecture

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Andrius Maneikis; [2016]
    Nyckelord :IEC61850; OLTC; transformer; tap changer; distribution; electric; power; automation; client; server;

    Sammanfattning : Distributed generation is transforming the power system grid to decentralized system where separate units like wind power generators or solar panel shall coexist and operate in tandem in order to supplement each other and make one extensive system as a whole so called smart grid. It is utmost important to have a control ability over such units not only on a field level but on a system level as well. LÄS MER

  7. 5. Evolution of the LV Network

    Master-uppsats, KTH/Elektriska energisystem

    Författare :Pierre Croce; [2013]
    Nyckelord :;

    Sammanfattning : Providing reliable electricity to everyone is a very important matter nowadays. Both thetransmission system operator and the distribution system operator are acting on the grid inorder to insure it. The latter sometimes has to deal with problems regarding the voltage,especially in rural areas. LÄS MER