Results 21 to 30 of about 149,836 (181)

Using alternative transient program and electromagnetic transients programs (ATP/EMTP) in lightning overvoltages analysis [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2016
The goal of this paper is to introduce a procedure for risk assessment of insulation failure due to storm surges. The simulations were carried out in ATP / EMTP software, which allowed the use of the Monte Carlo method for the statistical analysis of ...
Mrvić Jovan   +4 more
doaj   +1 more source

Lightning protection for power transformers of Aqaba Thermal Power Station

open access: yesArchives of Electrical Engineering, 2020
In this paper, a study of the lightning phenomenon and its harmful effect on Aqaba Thermal Power Station (ATPS), located in the south-western border of Jordan, is presented using the Electromagnetic Transients Program – Alternative Transients Program ...
Wael Fawzi Abu Shehab   +2 more
doaj   +1 more source

Simulation Analysis of Three Phase Unbalanced Current and Over Compensation of High Voltage Reactor in Transmission Line

open access: yes南方能源建设, 2021
[Introduction] The safe and stable operation of UHV transmission lines is essential to the safety of power grids. When the new substation deconstructs the original long line in the power grid planning and construction, the following problems, such as the
ZHENG Xing, CHEN Yipeng, QI Donghui
doaj   +1 more source

Identify Direct Lightning Strike Location Based on Discrete Wavelet Transform for 115-kV Transmission System

open access: yesIEEE Access, 2022
This paper proposes three techniques for locating lightning strikes in a 115 kV transmission system over 88.5 km, based on the arrival time of a transient wave obtained from a discrete wavelet transform (DWT).
Pathomthat Chiradeja   +1 more
doaj   +1 more source

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

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

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

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