Essays about: "thesis for relays"

Showing result 11 - 15 of 42 essays containing the words thesis for relays.

  1. 11. Feasibility Study for Substation Communication using Parallel Redundant Wireless Technology

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

    Author : Neha Kumari; [2018]
    Keywords : ;

    Abstract : Substations are an integral part of electric energy transmission and distribution system. With the evolution of conventional substations as digital substations, and in parallel, with the revolutionized emergence of communication systems, new communication schemes are being designed and retrofitted to incorporate the data from relays, circuit breakers and Intelligent Electronic Devices (IEDs) to integrate with the new digital substations. READ MORE

  3. 12. Gotland as a microgrid -  Energy storage systems frequency response in grids with high level of renewable energy penetration

    University essay from Uppsala universitet/Elektricitetslära

    Author : Firas Daraiseh; [2018]
    Keywords : Energy Storage System; Frequency Response; Gotland; Microgrid; Wind Curtailment; PSS E;

    Abstract : The Swedish island of Gotland , situated about 100 km from mainland Sweden in the Baltic Sea, represents a power system with a high wind power penetration. The island is connected to the mainland Sweden exclusively via two HVDC cables that provide the only source of active power and frequency control. READ MORE

  4. 13. Text, Image, and Nostalgia in Two Versions of F. Scott Fitzgerald's "The Rich Boy"

    University essay from Linnéuniversitetet/Institutionen för språk (SPR)

    Author : Lara María Rodríguez Sieweke; [2018]
    Keywords : F. Scott Fitzgerald; “The Rich Boy”; F.R. Gruger; José Luis Ágreda; short stories; illustrations; advertisements; magazines; intermediality; word-image discussions; nostalgia;

    Abstract : Abstract This thesis attempts to contribute to both intermedial studies and F. Scott Fitzgerald scholarship by studying the text-illustration interplay in two versions of “The Rich Boy”. READ MORE

  5. 14. A novel approach to detect CT saturation using standalone CT measurements

    University essay from KTH/Elkraftteknik

    Author : Salman Uddin; [2017]
    Keywords : CT; CT saturation; Power system protection; Strömtransformator; Strömtransformatormattning; Reläskydd i kraftsystem;

    Abstract : The requirement for reliability and security in power system is increasing every passingday with the increase in complexity of the power system. To ensure highest level ofreliability, protection relays have to receive correct measurements. One of the most importantmeasurement that is needed by a relay as an input is current. READ MORE

  6. 15. The impacts of series compensated EHV lines on distance protection, and a proposed new mitigation solution

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Syed Arif Ullah Shah; [2017]
    Keywords : Series compensation; metal oxide varistor; voltage inversion; current inversion; sub-synchronous oscillation; quadrilateral characteristic distance relay; digital high-pass filter; Seriekompensation; metalloxidvaristor; spänningsinversion; ströminversion; subsynkron oscillation; fyrsidig karakteristiskt distansrelä; digitalt högpassfilter;

    Abstract : Series compensation is extensively applied to the transmission lines to increase the power transfer capability of transmission lines, reduce transmission losses, improve voltage profiles, and improve power oscillation damping and transient stability of power systems. But it modifies the apparent impedance of the transmission lines during fault conditions and might cause the distance protection of transmission lines to encounter directional discrimination issues and reach problems. READ MORE