Now showing items 1-4 of 4

  • Analysis of IEC 61850-9-2LE Measured Values Using a Neural Network 

    Wannous, Kinan; Toman, Petr; Jurák, Viktor; Wasserbauer, Vojtěch (MDPI, 2019-04-28)
    Process bus communication has an important role to digitalize substations. The IEC 61850-9-2 standard specifies the requirements to transmit digital data over Ethernet networks. The paper analyses the impact of IEC 61850-9-2LE ...
  • Evaluation of different solutions of faulted phase earthing technique for an earth fault current limitation 

    Topolánek, David; Toman, Petr; Ptáček, Michal; Dvořák, Jaromír (IET, 2017-06-12)
    The study is focused on evaluation of different types of prototypes of automatics for additional faulted phase earthing (FPE), which are used for earth fault (EF) current reduction in resonant earthed distribution network. ...
  • Evaluation of Harmonics Impact on Digital Relays 

    Wannous, Kinan; Toman, Petr (MDPI, 2018-04-11)
    This paper presents the concept of the impact of harmonic distortion on a digital protection relay. The aim is to verify and determine the reasons of a mal-trip or failure to trip the protection relays; the suggested ...
  • Two-Terminal Algorithm Analysis for Unsymmetrical Fault Location on 110 kV Lines 

    Bukvišová, Zuzana; Orságová, Jaroslava; Topolánek, David; Toman, Petr (MDPI, 2019-03-27)
    This work analyses a two-terminal algorithm designed to locate unsymmetrical faults on 110 kV power transmission lines. The algorithm processes synchronized voltage and current data obtained from both ends of the protected ...