Results 1 to 10 of about 1,740 (95)

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   +3 more sources

Electromagnetic Transients in Multi-Voltage Transmission Lines during Non-Simultaneous Faults

open access: yesEnergies, 2022
It is vitally important that a transmission network provides a continuity of electricity to end users and that the transmission system operator prioritizes its safety and reliability.
Daria Zychma, Paweł Sowa
doaj   +1 more source

Using Electromagnetic Transient Program (EMTP) for accurate prediction of faults location

open access: yes2020 52nd North American Power Symposium (NAPS), 2021
Electrical power systems are sophisticated networked grids, which need to function with high reliability to provide electricity to customers. With high number of interconnected busses and devices in both transmission and distribution networks, electrical power systems need powerful programs to perform high speed calculations.
Christopher Carr   +2 more
openaire   +2 more sources

Efficient modelling of natural gas pipeline on electromagnetic transient simulation programs

open access: yesIET Renewable Power Generation, 2023
Electromagnetic transient programs (EMTPs) are widely used for simulating electromagnetic transient in power systems. With the increasing interest in integrated energy system (IES), it would be beneficial to extend the scope of EMTP‐type application to ...
Ruikai Song   +6 more
doaj   +1 more source

Investigation of ferroresonance phenomena in isolated 6 kV power network [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2023
Ferroresonance is a complex nonlinear electrical phenomenon that can cause significant dielectric and thermal stresses in power equipment, leading to potential faults, equipment damage, power supply interruptions, etc.
Jasika Ranko   +2 more
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

A novel superimposed component‐based protection method for multi‐terminal transmission lines using phaselet transform

open access: yesIET Generation, Transmission & Distribution, 2023
This paper presents a novel protection method for transmission lines that estimates the superimposed component phasor using phaselet transform. The phaselet transform computes the phasors over variable‐lenfgth data window at the instant of a fault, so it
Sajad Ansari, Navid Ghaffarzadeh
doaj   +1 more source

Comparative study of 220 kV overhead transmission lines models subjected to lightning strike simulation by using electromagnetic and alternative transients program

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. In high voltage networks intended for the transport of electrical energy, lightning can strike an electric line striking either a phase conductor, a pylon or a ground wire, causing significant overvoltage on the transmission lines ...
S. Boumous   +3 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

Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks

open access: yesEnergies, 2020
Due to the increasing requirements for the reliability of electrical power supply and associated apparatus, it is necessary to provide a detailed analysis of the overvoltage risk of power transformer insulation systems and equipment connected to their ...
Jakub Furgał   +2 more
doaj   +1 more source

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