Essays about: "Earthing"

Showing result 1 - 5 of 7 essays containing the word Earthing.

  1. 1. Microgrid Protection Strategies for the Swedish Power System

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Zalak Shah; [2023]
    Keywords : Microgrid; Protection; three-phase fault; earth fault; Technology and Engineering;

    Abstract : This thesis mainly focuses on the protection strategies of microgrids for the Swedish power system in the medium voltage distribution system and specifically on the three-phase fault and earth faults protection strategies. For the analysis of both faults, different grid-connected, and islanding operations are simulated using DIgSILENT Power Factory. READ MORE

  3. 2. Implementation of an Arc Model for MV Network with Resonance Earthing

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

    Author : Muhannad Almulla; [2020]
    Keywords : Distribution system; electrical arc; high impedance fault; Petersen coil; resonance earth.;

    Abstract : The most common fault type in electric power systems is the line to groundfault. In this type of faults, an electrical arc is usually developed. The thesispresents a mathematical model that describes the behavior of the arc during afault. READ MORE

  4. 3. Cross-Country Faults in Resonant-Earthed Networks

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

    Author : Gabriel Miguel Gomes Guerreiro; [2020]
    Keywords : Cross- country fault; resonant earthing; compensated network; MV network; distance protection; fault analysis; RTDS EMTDC.; dubbla jordfel; spoljordning; jordfelskompenserade elnät; mellanspänningsnät; distansskydd; reläskydd; RTDS EMTDC.;

    Abstract : Reliability requirements for power systems have been constantly increasing, as customers of electric power desire high power availability. In order to improve continuity of supply in medium voltage (MV) networks, utilities in many countries in Europe, North/South America and Oceania use resonant earthing and allow the operation of the network during a single phasetoearth fault for periods from several seconds up to several hours, since the earthfault current at the fault point in such systems is considerably reduced and is unlikely to damage equipment or create hazardous voltages for people or livestock. READ MORE

  5. 4. Earthing Lug Design for Alfa Laval Gasketed Plate Heat Exchanger

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Pascal Nordgren; [2019]
    Keywords : Static electricity; conductivity; resistance; flow electrification; solid; liquid; GPHE; discharge.; Technology and Engineering;

    Abstract : .... READ MORE

  6. 5. New concept for the ground connection in Scania’s trucks and buses

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : ANDRÉS LLORENTE; [2014]
    Keywords : Electrical Contacts; Heavy-duty vehicles; Grounding; SRM Stud welding;

    Abstract : Regarding the ground electrical connection in trucks and buses, the requirements of earthing in heavy-duty vehicles were gathered and evaluated. The most important problems in the state-of-the-art grounding devices are corrosion, electrical resistance and uncertainty in the mounting process, altogether with depreciation over time. READ MORE