Essays about: "Stamnät"

Showing result 1 - 5 of 6 essays containing the word Stamnät.

  1. 1. Transmission expansion planning considering Probabilistic Risk Assessment : Implemented at Swedish National Grid

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

    Author : Jakob Björns; [2023]
    Keywords : Probabilistic risk assessment; PSS E; Transmission expansion planning; National grid; Probabilistisk riskbedömning; PSS E; Transmissionsnätsutveckling; Stamnät;

    Abstract : Svenska kraftnät (Swedish National Grid) is the transmission system operator in Sweden and is responsible for maintaining and developing the Swedish transmission grid. One of the tasks included in this responsibility is transmission expansion planning, which means analyzing and planning the capacity in the future transmission grid for the requested load and generation. READ MORE

  3. 2. Relay settings for frequency derivative protection against islanding : Optimizing RoCoF-Hysteresis and Delay for the Swedish power grid: An investigation of relevant values

    University essay from KTH/Hälsoinformatik och logistik

    Author : Ahmad Safari; [2023]
    Keywords : Islanding; unintentional islanding; distributed energy resources; main grid; RoCoF; hysteresis; delay; Ödrift; oavsiktlig ödrift; distribuerade energiresurser; stamnät; RoCoF; hysteres; fördröjning;

    Abstract : This report addresses the parameter settings for a protective relay designed to safeguard a 15 kW wind turbine located in Rimbo, Norrtälje municipality, against unintentional islanding. This type of situation arises when distributed energy resources continue to supply local loads, even if the main grid has been unintentionally disconnected. READ MORE

  4. 3. Vidareutveckling av metod för bedömning av miljöpåverkan i samhällsekonomiska analyser vid investeringar i det svenska elstamnätet

    University essay from SLU/Dept. of Energy and Technology

    Author : Elinda Andersson; [2016]
    Keywords : miljöpåverkansbedömning; livscykelanalys; stamnät; elnät; ekonomisk värdering; Svenska kraftnät;

    Abstract : Svenska kraftnät, which is the authority responsible for the Swedish national grid, performs cost-benefit analysis (CBA) to assess which of different investment projects that are of greatest benefit to society. The environmental impacts are also estimated during this analysis. READ MORE

  5. 4. Grease-oil compatibility in tribological applications - supergrease

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Anna Von Krusenstierna; [2016]
    Keywords : tap-changer; lindingskopplare; fett; grease; transformer oil; grease-oil compatibility; materials chemistry; materialkemi; Technology and Engineering; Chemistry;

    Abstract : A common reason to malfunctioning of tap-changers is wear of tribological contacts. In order to reduce wear, it would be desirable to lubricate the contacts. Since the tap-changer is working in transformer oil, it is necessary that whatever lubricant is added is compatible with transformer oil. READ MORE

  6. 5. Evaluating a publish/subscribe proxy for HTTP

    University essay from KTH/Kommunikationssystem, CoS

    Author : Yuanhui Zhang; [2013]
    Keywords : Publish Subscribe; HTTP proxy; Blackadder; PURSUIT; Pub sub proxy; network metrics; Publicera Prenumerera; HTTP-proxy; Blackadder; PURSUIT; Pub sub proxy; nätverk statistik;

    Abstract : With the increasingly high speed of the Internet and its wide spread usage, the current Internet architecture exhibits some problems. The publish/subscribe paradigm has been developed to support one of the most common patterns of communication. It makes “information” the center of communication and removes the “location-identity split” (i. READ MORE