Sökning: "Current measurement Transformer"

Visar resultat 1 - 5 av 20 uppsatser innehållade orden Current measurement Transformer.

  1. 1. Monitoring of Partial Discharges on Cable Terminations : An experimental approach to evaluate non-conventional online PD measurement techniques

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Tony Sibo; [2023]
    Nyckelord :Monitoring; Partial discharges; Medium-voltage cable terminations; Sensor performance; Reliability evaluation; Infrared camera IR-camera ; Ultrasonic emission sensor AE-sensor ; Temperature and relative humidity sensor TRH-sensor ; High frequency current transformer HFCT ; Transient earth voltage antenna TEV-antenna ; Conventional VS non-conventional PD measurement techniques; Övervakning; Partiella urladdningar; Mellanspänningskabelslut; Evaluering av sensorprestanda; Utvärdering av systemets tillförlitlighet; Infraröd kamera; Ultraljudssensor; Temperatur- och relativ fuktighetssensor; Högfrekvent strömtransformator; Transient jordspänningsantenn; Konventionella vs icke-konventionella mättekniker;

    Sammanfattning : The transmission of electric power over long distances has historically posed challenges. However, the advent of high-voltage engineering has not only addressed distance barriers and power losses in electricity transmission and distribution, but it has also significantly improved the efficiency and transmission capacity of power grids. LÄS MER

  3. 2. Effektmätning av trefaspumpar

    M1-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Hector Wallén; Rickard Enqvist; [2021]
    Nyckelord :Mätsystem; Inbyggda system; Effektmätning; Current Transformer; Sensorteknik;

    Sammanfattning : Historiskt sett så har motorer och pumplösningar sålts utan sensorer. Detta innebär att kunden behöver designa specialbyggda övervakningslösningar, skräddarsydda till de specifika behoven som deras installation har. LÄS MER

  4. 3. Feldetektering i återgångkablar

    Kandidat-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Erik Asp; [2021]
    Nyckelord :Feldetektering;

    Sammanfattning : The purpose of ths report is to shed light on the problems surrounding error detection in returncables, specifically in connection with tunnels. In Sweden, among other things, has chosen to usea BT system with a suction transformer and a dedicated return conductor to reduce interferencesuch as occurs on telecommunications and signal cables along the track. LÄS MER

  5. 4. Feldetektering i återgångskablar

    Kandidat-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Erik Asp; [2021]
    Nyckelord :Feldetektering; BT-system; järnväg; sugtransformator;

    Sammanfattning : The purpose of ths report is to shed light on the problems surrounding error detection in returncables, specifically in connection with tunnels. In Sweden, among other things, has chosen to usea BT system with a suction transformer and a dedicated return conductor to reduce interferencesuch as occurs on telecommunications and signal cables along the track. LÄS MER

  7. 5. Optimal Demagnetization of Transformer After Winding Resistance Measurements

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Niclas Grönström; [2020]
    Nyckelord :;

    Sammanfattning : In this thesis, transformer demagnetization in connection to winding resistance tests is investigated. In transformer testing, winding resistance measurement (WRM) is an important test used to detect winding or connection faults. It is common practice to measure the resistance by injecting a DC current into the windings of a transformer. LÄS MER