Results 21 to 30 of about 1,820 (204)

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

Investigation of overvoltage on square, rectangular and L-shaped ground grids of high voltage substations by ATP/EMTP [PDF]

open access: yes, 2021
Ground grid system is important for preventing the hazardous effects of overvoltage in high voltage substations due to fault current perhaps from lightning strike or device malfunction.
Luewattana, Krung, Rattanasena, Paweena
core   +3 more sources

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

Analysis of transmission lightning arrester locations using Tflash [PDF]

open access: yes, 2016
Tropical countries with extensive lightning activity, such as Malaysia, encounter numerous problems on their electrical transmission and distribution systems.
Arief, Y. Z.   +8 more
core   +1 more source

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

A new methodology for network scale simulation of emerging power line communication standards [PDF]

open access: yes, 2016
This paper presents the development of a new methodology for the simulation of Power Line Communication (PLC) within the popular Electromagnetic Transients Programme-Alternative Transients Programme (EMTP-ATP).
Griffiths, Huw   +2 more
core   +1 more source

Accurate fault location algorithm on power transmission lines with use of two-end unsynchronized measurements [PDF]

open access: yes, 2012
This paper presents a new approach to fault location on power transmission lines. This approach uses two-end unsynchronised measurements of the line and benefits from the advantages of digital technology and numerical relaying, which are ...
Houari Sayah   +2 more
core   +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

Home - About - Disclaimer - Privacy