Results 31 to 40 of about 252,386 (185)

Faulted feeder identification and location for a single line-to-ground fault in ungrounded distribution system based on principal frequency component

Archives of Electrical Engineering, 2020
When a single line-to-ground fault occurs in the ungrounded distribution system, the steady-state fault current is relatively small for fault analysis and the transient fault current is observable, which can be used for faulted feeder identification and ...
Ling Liu
doaj   +1 more source

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

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

, 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.
Blair, Steven Macpherson, Booth, Campbell, Bright, C.G., Burt, Graeme   +3 more
core   +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

Impact of hybrid renewable energy systems on short circuit levels in distribution networks [PDF]

, 2014
The effects of the distributed generation can be classified as environmental, technical and economical effects. It is playing a very vital role for improving the voltage profiles in electrical power systems.
Afifi, SN, Darwish, MK
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

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

Analysis of single phase ground fault characteristics of low resistance ground active distribution network

Journal of Physics: Conference Series, 2021
Abstract A large number of distributed generators access to low resistance grounding system may have great influence on the fault characteristics of single phase ground. In view of low resistance ground active distribution network, the connection mode of Inverter-interfaced Distributed Generators (IIDG) is discussed comprehensively based
Na Wu, Zihui Liu, Shuxian Fan, Longjing Dong, Zhengxian Yang, Chengxiang Zhou   +5 more
openaire   +1 more source