Results 41 to 50 of about 10,043 (293)

The Influence of the Characteristics of the Medium Voltage Network on the Single Line-to-Ground Fault Current in the Resistor Grounded Neutral Networks

Designs, 2021
One important problem in the operation of medium voltage networks is the detection of a single-line-to-ground fault in its incipient state, when the fault resistance values are very high.
Dumitru Toader, Marian Greconici, Daniela Vesa, Maria Vintan, Claudiu Solea, Adrian Maghet, Ildiko Tatai   +6 more
doaj   +1 more source

Modeling the operation of a medium voltage power grid with a compensated neutral at single-phase ground fault [PDF]

, 2018
В статье разработана расчетная модель сети среднего напряжения с тремя фидерами в среде Matlab, которая позволяет моделировать работу сети в режиме однофазного замыкания на землю.
Чепелюк, Александр Александрович, Зорин, Евгений Юрьевич   +1 more
core   +1 more source

Ground-Fault Recognition in Low-Voltage Ships Based on Variation Analysis of Phase-to-Ground Voltage and Neutral-Point Voltage

IEEE Access
Generally, ships use a three-phase power system with low-voltage and ungrounded systems to ensure continuous power supply. In these shipboard power systems, ground faults constitute approximately 95% of all faults.
Ki-Tak Ryu, Yun-Hyung Lee
doaj   +1 more source

Fuzzy Inference System Based Distance Estimation Approach for Multi Location and Transforming Phase to Ground Faults in Six Phase Transmission Line

International Journal of Computational Intelligence Systems, 2018
The faults occurring in different phases at multiple locations and different times are difficult to locate exact location using conventional techniques.
A Naresh Kumar, M Chakravarthy
doaj   +1 more source

Device for limiting single phase ground fault of mining machines [PDF]

IOP Conference Series: Earth and Environmental Science, 2017
The paper shows the reasons and consequences of the single-phase ground fault. With all the variety of devices for limiting the current single-phase ground fault, it was found that the most effective are Peterson coils having different switching circuits.
R S Feduik, N Yu Stoyushko, Yu G Yevdokimova, A K Smoliakov, V O Batarshin, R A Timokhin   +5 more
openaire   +1 more source

Application of multiple resistive superconducting fault-current limiters for fast fault detection in highly interconnected distribution systems

, 2013
Superconducting fault-current limiters (SFCLs) offer several benefits for electrical distribution systems, especially with increasing distributed generation and the requirements for better network reliability and efficiency.
Burt, Graeme, Bright, C.G., Blair, Steven Macpherson, Booth, Campbell   +3 more
core   +1 more source

Hybrid Deep Learning Model for Fault Detection and Classification of Grid-Connected Photovoltaic System

IEEE Access, 2022
Effective fault detection and classification play essential roles in reducing the hazards such as electric shocks and fire in photovoltaic (PV) systems.
Moath Alrifaey, Wei Hong Lim, Chun Kit Ang, Elango Natarajan, Mahmud Iwan Solihin, Mohd Rizon Mohamed Juhari, Sew Sun Tiang   +6 more
doaj   +1 more source

Effective two-terminal single line to ground fault location algorithm [PDF]

, 2012
This paper presents an effective algorithm to locate Single Line to Ground (SLG) fault at a transmission line. Post fault voltages and currents from both substation terminals were used as the input parameters to the algorithm. Discrete Fourier Transform (
Y. Yatim, Yatim, Y., Idris, M. H., Mustafa, Mohd. Wazir, M. H. Idris, M. W. Mustafa   +5 more
core   +1 more source

Estimation of the minimum level of higher harmonics in the single-phase-to-ground fault current in compensated 6–10 kV networks

Elektrotehnìka ta Elektroenergetika
Purpose Development of a model for a compensated 6–10 kV network and a methodology for selecting its element parameters based on estimating the minimum level of higher harmonics in the single-phase-to-ground fault current. Methodology. To estimate the
A. E. Shamrai, I.V. Isaiev
doaj   +1 more source

Distribution of currents and voltages of the "resonant" frequencies along the overhead power lines of 6 - 35 kV level voltageinsingle-phase ground fault mode

Известия высших учебных заведений: Проблемы энергетики, 2017
Paper show methodic of determine of place of single-phase ground fault with intermittent arc on the overhead power line. The informative signs of single-phase ground fault place are determine by values of voltage of the «resonance» frequencies of zero ...
A. I. Fedotov, G. V. Vagapov, N. V. Chernova   +2 more
doaj   +1 more source