Results 21 to 30 of about 1,760 (188)

Simulation of electromagnetic influence of railway overhead contact system on disconnected transmission lines by the ATP-EMTP programme [PDF]

open access: yesVestnik MGTU, 2016
This paper is devoted to experimental and calculating research of induced voltage on disconnected transmission lines caused by the influence of AC railway overhead contact system.
Zalesova O. V.
doaj   +1 more source

Overview of Transient Simulations of Grounding Systems under Surge Conditions

open access: yesEnergies, 2022
The present paper gives an overview of modelling methods of standard grounding systems under surge conditions, using the non-uniform transmission line approach.
Tomasz Kisielewicz, Milton Cuenca
doaj   +1 more source

INVESTIGATION OF IMPEDANCE-DIFFERENTIAL PROTECTION’S ALGORITHM AS A FAULT LOCATOR FOR DOUBLE-CIRCUIT TRANSMISSION LINE

open access: yesТехнічна електродинаміка, 2020
This paper deals with an analysis of impedance-differential protection algorithm applied to locate faults on a double-circuit transmission line. In particular, the study of fault location accuracy for the case of using the relation between currents for ...
Ю. Герлендер   +2 more
doaj   +1 more source

Reduction factor of 110kV cable line: Measurement and simulation model [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2020
The procedure for determining the reduction factor for 110 kV feeding cable lines based on the measurement results is presented in this paper. The obtained results were compared with the values obtained by cable line modeling by ATP/EMTP software tool ...
Jasika Ranko   +3 more
doaj  

Ultra-Fast Busbar Protection by Applying TT-transform on Superimposed Current Signals [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
In this paper a new method for busbar protection is presented. In this method high frequency components generated by faults in current signals at the outputs of current transformers of substations are extracted by applying TT transform and then the ...
Mahmood Lashgari, S. Mohammad Shahrtash
doaj   +1 more source

ČASOVNO ODVISNA SIMULACIJA TOKA ODKLOPNIKA BREZ OBLOKA IN NARAŠČAJOČO UPORNOSTJO [PDF]

open access: yes, 2023
There has been intensive research and development in the field of Circuit breakers, whether DC and AC, or low voltage and high voltage. The result of this has led to the production of highly reliable circuit breakers that accompany a built-in arc ...
Bin Khalid, Dareer   +2 more
core   +2 more sources

Research on suppression measures of ferromagnetic resonance based on ATP-EMTP [PDF]

open access: yesJournal of Physics: Conference Series, 2020
Abstract Aiming at the electromagnetic transformer of a 35kV substation in a certain area, a simulation model of ferromagnetic resonance based on ATP-EMTP software was established. Several methods of suppressing ferromagnetic resonance overvoltage were analyzed, and it was found that the harmonic elimination device could not completely ...
Weili Wu, Tianming Zhang
openaire   +1 more source

ANALIZA ZAKŁÓCEŃ W SIECIACH ELEKTROENERGETYCZNYCH WYWOŁANYCH WYŁADOWANIAMI PIORUNOWYMI

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2014
W artykule przedstawiono złożoność problematyki analizy stanów nieustalonych napięć pojawiających się w układzie elektroenergetycznym wskutek bezpośrednich wyładowań piorunowych do elementów konstrukcyjnych linii napowietrznej.
Mariusz Benesz, Rafał Tarko
doaj   +1 more source

Development of diagnostic and prognostic algorithms for SF6 puffer circuit breakers from transient waveforms: a validation proposal [PDF]

open access: yes, 2009
- This paper presents a validation proposal for development of diagnostic and prognostic algorithms for SF6 puffer circuit-breakers reproduced from actual site waveforms.
Kam, Shui-cheong, Ledwich, Gerard
core   +1 more source

Single line to ground fault detection and location in medium voltage distribution system network based on neural network [PDF]

open access: yes, 2021
The aim of this project was to detect and locate the single ground failure lines that occurs in medium voltage (MV) networks on the transmission lines (TL). Compared with anther faults, single line-to-ground (SLG) is the most frequent. The neural network
Abbas, Ahmed K.   +2 more
core   +3 more sources

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