Sökning: "arc voltage"

Visar resultat 1 - 5 av 27 uppsatser innehållade orden arc voltage.

  1. 1. Tribological characterization of a ball bearing subjected to an electric field : Electric drivetrain tribology

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Muhammad Umar Farooq; [2023]
    Nyckelord :Ball bearing; electric drivetrain; tribology; electric field; characterization; bearing currents; discharge;

    Sammanfattning : Electric machines are widely used in for instance the automotive industry in electric vehicles and in wind turbines. The electrical machines have mechanical bearings as an integral part used to transmit power and load. In addition, the main function includes reducing friction between interacting surfaces. LÄS MER

  3. 2. Electrical Discharge Interaction with Lithium-Ion Battery Vent Gases: Investigations using High-Speed Imaging and Breakdown Analysis

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Alexander Petersson; [2023]
    Nyckelord :Electrical Discharge; Electrical Arc; Spark Discharge; Combustion; Ignition; Lithium-Ion Battery; Thermal Runaway; Vent Gases; Breakdown Voltage; Ionization; High-Speed Imaging; Technology and Engineering; Chemistry;

    Sammanfattning : The increasing drive for sustainable and eco-friendly transportation has made the electrification of cars a top priority in the energy and transportation sectors. Ensuring the safety of electrical vehicle (EV) batteries is of the utmost importance. LÄS MER

  4. 3. Parameter Study of Arc Squeezing DC Breaker : The impact of the geometry on counter force, pressure, and arc voltage

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Johanna Olsson; [2022]
    Nyckelord :Arc squeezing; DC breaker; Polymer ablation; Pressure measurement; Ljusbågssläckning; DC brytare; Polymerablation; Tryckmätning;

    Sammanfattning : The sustainable future in our already electrified world includes solar power generation, battery storage, and electric vehicles all which requires DC systems. DC breakers play a key role in operation and protection within the DC system. LÄS MER

  5. 4. Tests of Series Arcing and Arc Fault Detection Devices in Low Voltage Systems

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Ghazal Al Qabbani; [2021]
    Nyckelord :;

    Sammanfattning : Unwanted electrical arcs are a concern in fire and electrical equipment safety. Arcs in electrical systems can be categorized into two main groups, traditionally called: Series and parallel arc faults, or more recently called low current and high current arc faults. LÄS MER

  7. 5. Reaktiv effektkartläggning i distributionsnät

    Master-uppsats,

    Författare :Julius Lundqvist; [2021]
    Nyckelord :Reactive power; Power distribution; Grid modeling;

    Sammanfattning : Falbygdens Energi AB is a local grid owner in Västra Götaland county and have had an increase in the amount of cable in the grid during the last decades. This increase in cable length, combined with a lack of reactive power monitoring, has led to the reactive power situation in the grid not being fully investigated. LÄS MER