Search for dissertations about: "railway interference"

Showing result 1 - 5 of 11 swedish dissertations containing the words railway interference.

  2. 1. Electromagnetic Interference in Distributed Outdoor Electrical Systems, with an Emphasis on Lightning Interaction with Electrified Railway Network

    Author : Nelson Theethayi; Rajeev Thottappillil; Farhad Rachidi; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Electromagnetic Compatibility EMC ; Lightning; Lightning Protection; Transmission Lines; Electromagnetic Wave Propagation; Underground Cables; Grounding; Electromagnetic Transients; Electromagnetic Interference; Shielding Effectiveness; Railway Systems; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Abstract : This thesis deals with the electromagnetic compatibility (EMC) problems of distributed electrical networks, especially that caused by lightning to electrified railway. Lightning transients were found to damage important devices that control train movements, causing traffic stoppage and delays. READ MORE

  4. 2. Electromagnetic Interference in Modern Electrified Railway Systems with Emphasis on Pantograph Arcing

    Author : Surajit Midya; Rajeev Thottappillil; Uppsala University; []
    Keywords : Railway EMC;

    Abstract : .... READ MORE

  5. 3. Electromagnetic Interference to Electrified Railway Network Caused by Lightning: Development of Computation Models

    Author : Nelson Theethayi; Rajeev Thottappillil; Uppsala universitet; []
    Keywords : Railway EMC; Lightning;

    Abstract : .... READ MORE

  6. 4. EMC in railway systems : measurements, modeling and analysis

    Author : Stefan Niska; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : The subject of this study and resulting thesis was to investigate the electromagnetic compatibility (EMC) problems in the multi-electrical signaling circuitry along a railway track. These signaling systems have been expanding over time from buried multi-wired electrical copper cables to optical fiber cables, sometimes located parallel to the contact line in the catenaries. READ MORE

  7. 5. Electromagnetic Interference in Modern Electrified Railway Systems with Emphasis on Pantograph Arcing

    Author : Surajit Midya; Uppsala universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Electrified railways are undergoing rapid modernized in terms of increased speed, freight capacity and increased traffic. Traction systems are spread across countries with different signaling and power feeding systems. Signalling systems are undergoing modernization and now-a-days are more dependent on wireless and radio based services. READ MORE