Essays about: "inrush currents"

Found 4 essays containing the words inrush currents.

  1. 1. Simulation of Transformer Inrush Currents and Their Impact on the Grid

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Juan de la Peña Toledo; [2022]
    Keywords : Transformer; Energization; PSS E; PSCAD; Simulation; Magnetizing current; Inrush current; Technology and Engineering;

    Abstract : This MSc Thesis’s main objective is to determine the impact of transformer inrush currents in the grid and develop a tool that helps E.ON Energidistribution AB evaluate transformer sizing. The motivation of E. READ MORE

  3. 2. Minimizing Transformer No-Load Losses at Hydropower Plants : A Study of Effects from Transformer Switch-Off During Stand-by Operation

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Elin Luedtke; [2021]
    Keywords : step-up transformer; transformer switch-off; stand-by operation; idle operation; transformer winding; inrush current; fatigue stress; fatigue failure; S-N curve; transformer thermal cycling; thermal time constant; saving potential in hydropower; hydropower plant;

    Abstract : Hydropower is the most important power balancing resource in the Swedish electrical power system, regulating the power supply to match the load. Consequently, several hydropower plants have periods of stand-by operation where the power production is absent but where several devices within a plant are still active. READ MORE

  4. 3. Optimal Demagnetization of Transformer After Winding Resistance Measurements

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

    Author : Niclas Grönström; [2020]
    Keywords : ;

    Abstract : 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. READ MORE

  5. 4. Investigation of electromagnetic compatibility (EMC) of low-voltage (<60V) DC electric motors in construction machinery application

    University essay from Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska fakulteten

    Author : David Luong; Ibrahim Salloum; [2019]
    Keywords : EMC; brushed dc motor; arcing; inrush currents; X2Y capacitor; NTC thermistor; common mode ferrites; differential mode ferrites; grounding; cable placement; motor design parameters;

    Abstract : The brushed DC motor is a source of electromagnetic emission that may cause interference. The main issues with brushed DC motor are arcing, which occurs between the brushes and commutator, and inrush current. It is possible to decrease the electromagnetic emissions by addressing the source (brushed dc motor) and the installation. READ MORE