Essays about: "Lindningar"

Showing result 1 - 5 of 13 essays containing the word Lindningar.

  1. 1. Feasibility Study on Additive Manufacturing of Copper Windings using Electron Beam Melting

    University essay from KTH/Produktionsutveckling

    Author : Marilena Wiele; Murad Abulawi; [2023]
    Keywords : Electron beam melting; Additive manufacturing; Electric motor windings; Hairpin windings; Winding design; Copper; Parameter optimization; Electrical conductivity; Elektronstrålesmältning; Additiv tillverkning; Elmotorlindningar; Hårnålslindningar; Lindningsdesign; Koppar; Parameteroptimering; Elektrisk ledningsförmåga;

    Abstract : Within the framework of this thesis, the electron beam melting of pure copper for the purpose of producing electrical windings was examined. The conventional manufacturing process of copper windings was investigated, and the potential advantages offered by the design freedom inherent in the electron beam melting process were explored. READ MORE

  3. 2. Shielding of Transformer Stray Fields in Trains

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Lárusdóttir Lára Ólafia; [2022]
    Keywords : ;

    Abstract : Generally, a transformer will produce stray magnetic fields. Aboard trains, the transformer’s stray fields can pose problems to other components inside or outside the train. Further, regulations require the magnetic field to be below certain levels in the passenger area. READ MORE

  4. 3. Characterizing coil windings noise due to compressive fault currents : A study to determine if there is a characteristic noise from transformer windings due to fault currents

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Simon Lundgren; [2022]
    Keywords : Transformer windings; short circuit forces; current pulses; microphone; Comsol Multiphysics; FFT; Transformator lindningar; strömpulser; mikrofon; kortslutingskrafter; Comsol Multiphysics; FFT;

    Abstract : Transformers are essential for modern power distribution system. They are efficient and enable the voltages to be transformed up for transportation of electricity and back down for consumer use. The reliability of the transformer is affected by faults and fatigue of the copper. READ MORE

  5. 4. Optimal Demagnetization of Transformer After Winding Resistance Measurements

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Niclas Grönström; [2020]
    Keywords : ;

    Abstract : In this thesis, transformer demagnetization in connection to winding resistance tests is investigated. In transformer testing, winding resistance measurement (WRM) is an important test used to detect winding or connection faults. It is common practice to measure the resistance by injecting a DC current into the windings of a transformer. READ MORE

  6. 5. Empirisk bestämning av nollföljdsimpedans hos transformatorer med utdragen deltalindning

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Carmen Dahlin; [2020]
    Keywords : ;

    Abstract : The main goal of the thesis is through available data, empirically determine the ratio betweenthe zero and positive-sequence impedance of different transformers with accessible-winding, i.e. when the -winding is loaded. READ MORE