Essays about: "Transformer"

Showing result 1 - 5 of 121 essays containing the word Transformer.

  1. 1. PET bottles: From waste to resources. How circular economy transforms waste management practices in Buenos Aires

    University essay from Handelshögskolan i Stockholm/Institutionen för företagande och ledning

    Author : Martín Valese Aguilera; Daniel Gustafsson; [2019]
    Keywords : Circular Economy; PET bottles; Argentina; Markets as practice; Multiplicity;

    Abstract : Circular Economy has become a promising sustainability concept among scholars and practitioners. This is because circular economy replaces linear productive systems and enables the achievement of economic and social objectives while minimizing the environmental impact. READ MORE

  2. 2. Improved Transformer Duality Model for Geomagnetically Induced Currents

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

    Author : Martin Karlsson; [2018]
    Keywords : ;

    Abstract : A lumped element transformer tank model has been developed for evaluating the power dis-sipation in the tank and flux distribution in the transformer when it is subjected to a DC current in the neutral. FEM simulations are performed to assist in developing a per-phase magnetically separated transformer tank model that takes into account currents induced in the tank. READ MORE

  3. 3. A micro-CT investigation of density changes in pressboard due to compression

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Johan Stjärnesund; [2018]
    Keywords : Micro computed tomography; μCT; pressboard; density; densification;

    Abstract : Pressboard, a high-density cellulose-based product, is used both as load bearing structures and dielectric insulation in oil-filled power transformers. During transformer operation, mechanical forces and vibrations are applied on the material. READ MORE

  4. 4. Design of Experimental Setup for Investigation of Effect of Moisture Content on Transformer Paper Ageing during Intermittent Load

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

    Author : Patrik Gustafsson; [2018]
    Keywords : Dynamic Transformer Rating; transformer; moisture content; paper ageing; cellulose ageing; intermittent load; experiment; experimental setup;

    Abstract : In this project an experimental setup is designed to investigate the effect of intermittent load patterns in combination with moisture content on cellulose ageing. It is done by exposing groups of samples to different intermittent load patterns with varying frequency. READ MORE

  5. 5. Investigation of the effect of moisture in transformers on the aging of the solid insulation for dynamic rating applications

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

    Author : Christos Stefanou; [2018]
    Keywords : Dynamic rating; dynamic transformer rating; moisture in transformers; aging of transformer insulation; cellulose aging; solid insulation aging; experiment.; Dynamisk last; dynamisk transformatorklassificering; fukt i transformatorer; åldrande av transformatorisolation; åldrande av cellulosa; åldrande av fast isolation; experiment.;

    Abstract : In the present thesis an investigation is performed for the effect of moisture contenton the aging of the solid insulation for transformers that are dynamically loaded. Theinvestigation is based on a theoretical analysis and a model. READ MORE