Results 71 to 80 of about 1,820 (204)

High‐Impedance Fault Detection in Distribution Networks Based on Support Vector Machine and Wavelet Transform Approach (Case Study: Markazi Province of Iran)

open access: yesEnergy Science &Engineering, Volume 13, Issue 3, Page 1171-1183, March 2025.
High‐impedance fault (HIF) and load variation signals are sampled using EMTP‐RV and exported to MATLAB. DWT is applied to extract features, which are then input into the SVM algorithm to detect HIFs and distinguish them from other network phenomena. ABSTRACT High impedance faults (HIFs) can lead to crucial damage to the utility grid, such as the risk ...
Mohammad Sadegh Attar   +1 more
wiley   +1 more source

Simulasi Tegangan Lebih Akibat Sambaran Petir terhadap Penentuan Jarak Maksimum untuk Perlindungan Peralatan pada Gardu Induk [PDF]

open access: yes, 2016
Intisari — Energi listrik merupakan faktor penting untuk menunjang kehidupan dan kegiatan masyarakat. Dalam proses penyaluran energi listrik dari gardu induk ke konsumen seringkali terjadi gangguan.
Komalasari, Endah   +2 more
core   +1 more source

Diagnosing Power Transformer Winding Faults Using a Feature Fusion Method for Multidimensional Oscillating Wave Signals

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This paper proposes a feature fusion method for oscillating wave signals based on multidimensional transformation. For warpage and interturn faults in transformer windings, the fault information is extracted using the oscillating wave method. By fusing optimal multifeatures from different dimensions in the time–frequency domain, this approach enables ...
Zhenyu Wu   +4 more
wiley   +1 more source

Fuse holder damage investigation [PDF]

open access: yes
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf ...
Wacharasindhu, Tongtawee
core   +1 more source

Overvoltage Effects on Ground Grid Systems of Single and Two Neighboring High Voltage Substations [PDF]

open access: yes, 2016
The power networks with reliable transmission and distribution systems require high voltage substations with effective ground grid systems. Therefore, this study aimed to analyze the effects of overvoltage on ground grid systems within high voltage ...
Luewattana, Krung, Pruksanubal, Aphibal
core   +2 more sources

Detección y Clasificación de Fallas en Líneas de Transmisión Utilizando Transformada Wavelet y Máquinas de Soporte Vectorial

open access: yesRevista Técnica Energía, 2018
Este documento propone un método utilizando transformada Wavelet discreta (DWT) y Máquinas de Soporte Vectorial (SVM) para detectar y clasificar fallas a lo largo de una línea de transmisión.
F.I. Lozada   +2 more
doaj   +1 more source

Analisis Persebaran Medan Listrik pada Lightning Arrester 20kV Menggunakan Finite Element Method [PDF]

open access: yes, 2016
Lightning Arrester adalah perangkat semikonduktor yang digunakan dalam sistem tenaga listrik untuk melindungi peralatan terhadap petir dan switching tegangan lebih.
Fahmi, D. (Daniar)   +2 more
core  

Analysis of Grading Ring Design Parameters and Heat Sink Numbers Effect on Voltage Distribution and Leakage Current in Metal Oxide Surge Arrester

open access: yesIranian Journal of Electrical and Electronic Engineering, 2014
Metal oxide surge arresters (ZNO) are used widely in power system to protect equipments from over voltages. Non uniform potential distribution leads to the depressed service life and low safe reliability, so grading ring is applied on HV surge arrester ...
M. Khodsuz, M. Mirzaie
doaj  

The Influence of Atmospheric Overvoltages on High-Voltage SF6 Substations [PDF]

open access: yes, 2011
Very fast overvoltages are characteristic of high-voltage metal-enclosed SF6 insulated substations. During the transient phenomenon, on the SF6 substation enclosure an undesired, short-lasting induced overvoltage may appear, which cannot be prevented ...
Marinko Barukčić   +2 more
core   +1 more source

Profil Surja Hubung Karena Proses Energized (Pemberian Tenaga) pada Saluran Transmisi 500 Kv [PDF]

open access: yes, 2010
Yuniarto, in this paper explain that transient over voltage that happened because switching surge have tobe paid attention to don't cause the damage equipments of insulation coordination system.
Yuniarto, Y. (Yuniarto)
core  

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