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Found 1 swedish dissertation matching the above criteria.

  1. 1. Electromagnetic Modelling of Power Transformers with DC Magnetization

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Seyed Ali Mousavi; Göran Engdahl; S. V. Kulkarni; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transformer; Hysteresis; DC magnetization; GICs; FEM; reluctance network method;

    Abstract : DC currents that flow through the ground can be injected to the star windings of power transformers from their grounded neutral points and close their path with transmission lines. The geomagnetically induced currents (GICs) and AC/DC convertors of high voltage direct current (HVDC) systems are the sources of such DC currents. READ MORE