Essays about: "electrical switches"

Showing result 1 - 5 of 29 essays containing the words electrical switches.

  1. 1. Tribological characterization of a ball bearing subjected to an electric field : Electric drivetrain tribology

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Muhammad Umar Farooq; [2023]
    Keywords : Ball bearing; electric drivetrain; tribology; electric field; characterization; bearing currents; discharge;

    Abstract : Electric machines are widely used in for instance the automotive industry in electric vehicles and in wind turbines. The electrical machines have mechanical bearings as an integral part used to transmit power and load. In addition, the main function includes reducing friction between interacting surfaces. READ MORE

  3. 2. MODELLING OF HEAT TRANSFER OF RAILWAY SWITCH HEATING

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Siddharth Suresh Sumathi; [2023]
    Keywords : Conjugate Heat transfer analysis; transient analysis; CFD; insulation; measurement data uncertainties.; Konjugat Värmeöverföringsanalys; transientanalys; CFD; isolering; mätdata osäkerheter.;

    Abstract : Switches and crossings are vital components of the railway network. Obstacles to the smooth functioning of these components could result in delays and network traffic. Given the geographical location of Sweden, snow is one of the major obstacles for the switches. READ MORE

  4. 3. Design and Evaluation of an Automated Pyro Cutter System for Stratospheric Balloons

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Leia Nummisalo; [2023]
    Keywords : Stratospheric balloons; PCB; Recovery system; CNES; pyro cutter;

    Abstract : This thesis describes the development of an autonomous recovery system for stratospheric balloons, focusing on the novel pressurised balloon prototype BALMAN of CNES. Stratospheric balloons, reaching altitudes of up to 40 km, are utilised for scientific experiments, with recovery of payloads being a critical aspect. READ MORE

  5. 4. Design and Simulation of a 10kW High-Efficiency Dual Active Bridge Converter

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

    Author : Fan Yang; [2023]
    Keywords : Converter Design; Dual Active Bridge; Single Phase Shift Modulation; Extended Phase Shift Modulation; Efficiency Estimation; Konverterdesign; Dual Active Bridge; Single Fas Shift Modulation; Extended Phase Shift Modulation; Effektivitetsuppskattning;

    Abstract : The EU has proposed an ambitious goal to achieve widespread E-mobility in both the electrical and commercial sectors. To accomplish this, a substantial number of DC fast-charging stations must be built. READ MORE

  6. 5. Tether-free Driveline Control for Water Propulsion Devices

    University essay from Lunds universitet/Ergonomi och aerosolteknologi; Lunds universitet/Certec - Rehabiliteringsteknik och Design

    Author : Isak Marklund; Axel Müller; [2023]
    Keywords : Dead man’s switch; electric surfboard; jet surfboard; machine learning; user experience; usability testing; neural network; decision tree; bootstrap aggregating; time series; Technology and Engineering;

    Abstract : For many machines, safety requires the constant presence of an operator, with the risk of damage or danger if the operator is unintentionally absent. Dead man’s switches (DMS) are commonly used to halt operations if this absence is detected, often relying on physical elements like leashes or buttons. READ MORE