Results 41 to 50 of about 288,989 (348)

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

Ground Fault Protection Using Open Break Delta Grounding Transformer in Ungrounded System

Logic, 2019
One of the most common and difficult problems to solve in distribution power systems is the location and elimination of the ground fault. For the study of an electrical distribution network in ungrounded system operating at 20 kV on the primary and 380 V
Supriyanto Suhono, Hari Purnama, Heri Budi Utomo   +2 more
doaj   +1 more source

Simulating chemistry efficiently on fault-tolerant quantum computers [PDF]

, 2012
Quantum computers can in principle simulate quantum physics exponentially faster than their classical counterparts, but some technical hurdles remain. Here we consider methods to make proposed chemical simulation algorithms computationally fast on fault ...
, Alán Aspuru-Guzik, Cuccaro S A Draper T G Kutin S A Moulton D P, Dawson C M, Devitt S J Nemoto K Munro W J, Draper T G, Draper T G, Fowler A G, Gordon M S, Grover L Rudolph T, Helgaker T, Isailovic N Whitney M Patel Y Kubiatowicz J, James D Whitfield, Kitaev A Yu, Kitaev A Yu, Man-Hong Yung, N Cody Jones, Nielsen M A, Peter L McMahon, Preskill J, Rodney Van Meter, Wiebe N, Yoshihisa Yamamoto   +22 more
core   +2 more sources

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

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

Single-Phase Fault Line Selection in Distribution Network Based on Signal Injection Method

IEEE Access, 2021
The distribution network with small current grounding mode can ensure high power supply reliability, but it is difficult to locate single-phase grounding fault line. Most of the faults in distribution network are single-phase to ground fault.
Lin Niu, Guiqing Wu, Zhangsheng Xu
doaj   +1 more source

Semantic Segmentation-Based Intelligent Threshold-Free Feeder Detection Method for Single-Phase Ground Fault in Distribution Networks

IEEE Transactions on Instrumentation and Measurement
Feeder detection for single-phase ground fault (SPGF) is challenging in a resonant grounded system due to the difference in feeder capacitance to ground and the influence of the arc suppression coil.
Cui Hong, Heng-Yi Qiu, Jianhong Gao, Shuyue Lin, Mou-fa Guo   +4 more
semanticscholar   +1 more source

Improved transient simulation of salient-pole synchronous generators with internal and ground faults in the stator winding [PDF]

, 2005
An improved model for simulating the transient behavior of salient-pole synchronous generators with internal and ground faults in the stator winding is established using the multi-loop circuit method.
Bi, D.Q., Howe, D., Wang, W.J., Wang, X.H., Zhu, Z.Q.   +4 more
core   +1 more source

Single-phase-to-ground Fault Line Selection Method Based on STOA-SVM

Journal of Physics: Conference Series, 2021
In view of the complex characteristics of nonlinearity and non-stableness of the zero-order current of each line after the single-phase ground fault of the distribution network, a distribution network fault selection method based on Sooty Tern ...
Yicen Liu, Xiaojiang Liu, Songhai Fan, Xiaomin Ma, Sijing Deng   +4 more
semanticscholar   +1 more source