Results 1 to 10 of about 288,989 (348)

Development of an algorithm for identifying single-phase ground fault conditions in cable and overhead lines in the networks with isolated neutral

Energy Reports, 2023
The paper addresses the issue of identification of the type of single-phase ground fault in medium voltage networks operating mainly with an isolated neutral. By analyzing the published research, the most promising methods for detection of a single-phase
Andrey A. Achitaev, Konstantin V. Suslov, Irina O. Volkova, Vyacheslav E. Kozhemyakin, Yuri V. Dvoryansky   +4 more
doaj   +2 more sources

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   +2 more sources

A Single-Phase Ground Fault Line Selection Method in Active Distribution Networks Based on Transformer Grounding Mode Modification

Energies
Reliable fault line selection technology is crucial for preventing fault range expansion and ensuring the reliable operation of distribution networks.
Shi Su, Qingyang Xie, Pengfei Ma, Yuan Li, Fahui Chen, Jing Zhang, Botong Li, Changqi Wang   +7 more
doaj   +2 more sources

Fault Path Direct-Current Resistance Based Off-Line Single-Phase-To-Ground Fault Location

Zhongguo dianli, 2021
In order to figure out the off-line transmission line fault location, a new fault location method based on fault path direct current resistance measurement is proposed.
Fuzhi LI, Weibin ZHENG, Wenhai ZHANG, Zhiyong ZHANG, Defeng LIN, Xubo ZHANG, Rongjian ZHANG   +6 more
doaj   +2 more sources

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   +2 more sources

Using Matlab/Simulink Software Package to Investigate Fault Behaviors in HVDC System

Mathematics, 2022
Existing studies show that several performance issues will arise in the HVDC link during the three phase-to-ground fault at the side of the inverter and that the DC voltage will oscillate around zero and will not affect the rectifier of the AC system ...
Olumoroti Ikotun, Ephraim Bonah Agyekum, Emad M. Ahmed, Salah Kamel   +3 more
doaj   +1 more source

Fault detection technology for intelligent boundary switch [PDF]

Archives of Electrical Engineering, 2019
An intelligent boundary switch is a three-phase outdoor power distribution device equipped with a controller. It is installed at the boundary point on the medium voltage overhead distribution lines.
Ling Liu
doaj   +1 more source

Investigation of the Effect of Current Protections in Conditions of Single-Phase Ground Fault through Transient Resistance in the Electrical Networks of Mining Enterprises

Energies, 2023
The efficiency of electrical complexes depends directly on the level of power supply system reliability, which comprises extensive and branched distribution networks.
D. Ustinov, Aleksander Nazarychev, D. Pelenev, K. Babyr, A. Pugachev   +4 more
semanticscholar   +1 more source

Flexible arc suppression method for single-phase to ground fault in distribution network based on Z-type grounding transformer

Gong-kuang zidonghua, 2022
The coal mine power supply and distribution system usually adopts the neutral point non-effectively grounded method. Most of the power supply lines in this method use cable lines.
SI Weibin, MA Kexiang, LEI Zhirong, DANG Changfu, SONG Guobing, YUN Baoji, LIU Bin   +6 more
doaj   +1 more source

Mathematical Modeling of Arc Faults in Networks with Low Single Phase-to-Ground Fault Currents [PDF]

E3S Web of Conferences, 2019
The article comprises the results of the research defining open-flame arcs self-quenching conditions in the event of a single phase-to-ground fault in overhead medium-voltage distribution networks according to existing theories of arc extinguishing.
Brilinskii Andrei, Evdokunin Georgiy, Petrova Anna, Ryndina Irina   +3 more
doaj   +1 more source