Search for dissertations about: "condition monitoring parameters"

Showing result 1 - 5 of 37 swedish dissertations containing the words condition monitoring parameters.

  2. 1. On the estrablishment of effective condition monitoring parameters for copper corrosion problems in mineral oil-filled electrical transformers

    Author : Ramsey Jadim; Mirka Kans; Linnéuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; condition monitoring parameters; corrosion problems; sulfur deposits; corrosion reaction mechanisms; transformer failures; CBM.; Maskinteknik; Mechanical Engineering;

    Abstract : The power transformer is a critical equipment in which the protection process is essential for modern societies where continuous electric power supplies are required. Copper corrosion problems due to the formation of sulfur deposits on the copper windings of mineral oil-filled power transformers are considered a major issue that can lead to sudden failures, and in some cases, to costly fire and explosion accidents in the power plants. READ MORE

  4. 2. Unsupervised feature learning applied to condition monitoring

    Author : Sergio Martín del Campo Barraza; Fredrik Sandin; Kjersti Engan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Abstract : Improving the reliability and efficiency of rotating machinery are central problems in many application domains, such as energy production and transportation. This requires efficient condition monitoring methods, including analytics needed to predict and detect faults and manage the high volume and velocity of data. READ MORE

  5. 3. Condition Monitoring and Fault Diagnosis of Fluid Power Systems : Approaches with Neural Networks and Parameter Identification

    Author : Teresia Ramdén; Richard T. Burton; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis deals with condition monitoring and fault diagnosis of fluid power pumps and systems. Neural networks and parameter identification techniques have been important in the work. Vibration measurements have also been of importance.There is a need to find deterioration in fluid power systems (as in any system) at an early stage. READ MORE

  6. 4. Wayside Condition Monitoring System for Railway Wheel Profiles : Applications and Performance Assessment

    Author : Matthias Asplund; Uday Kumar; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : The railway is an important mode of transport, due to its environmental friendliness, high safety level, and low energy consumption combined with a high transport capacity, among other factors. The Swedish railway network is old, there has been almost no expansion of the network during the past few decades, and more traffic is expected. READ MORE

  7. 5. Structural analysis and condition monitoring of grinding mills : a case study

    Author : Filip Berglund; Lars Bernspång; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : Grinding mills are large rotating cylindrical steel vessels used to grind ore and minerals into finer particles. The mills are important parts of the mineral enrichment process and the grinding is the last step of the comminution process, where the particle size is reduced by a combination of abrasion and impact. READ MORE