Results 11 to 20 of about 11,033,050 (297)

Research on the optimisation strategy of short-circuit current limitation based on quantum genetic algorithm

The Journal of Engineering, 2019
With the expansion of urban power grid, short-circuit current issue becomes more important. This study proposes an effective approach to optimise short-circuit current limiting measure configuration.
Jianlin Yang, Yuan Ji, Mingxing Guo, Weidong Qiao, Fei Fei, Mengyao Zhang   +5 more
doaj   +2 more sources

Analysis of short-circuit current and spacer safety condition assessment in ±800 kV transmission line

Diance yu yibiao
At present, there are few studies on the bearing capacity and safety of spacer rod under short-circuit fault of ultra high voltage (UHV) DC transmission line.
YE Zhongfei, WANG Dong, ZHANG Li, YANG Xiaohui, WU Chuan, RUAN Jiangjun, LI Qing   +6 more
doaj   +2 more sources

The Analysis of Electrodynamic Forces in Residual Current Circuit Breakers Primary Current Paths During Short-Circuit Tests

Energies
This paper deals with the effect of electrodynamic forces acting on the primary current paths of residual current circuit breakers. This paper consists of a simulation part and an experimental part from the short-circuit tests performed. The experimental
Michał Szulborski, Lucjan Strehar, Urban Majdič, Gorazd Vrabič   +3 more
doaj   +2 more sources

Current sharing of parallel SiC MOSFETs under short circuit conditions [PDF]

, 2021
Device-to-device parametric variations (e.g. threshold voltage V TH , gate resistance R G and junction temperature T J ) can cause variations in the short-circuit currents conducted through parallel-connected devices.
Wu, Ruizhu, Mendy, Simon, Jahdi, Saeed, Gonzalez, Jose Ortiz, Alatise, Olayiwola M., Alatise, Olayiwola, Simon Mendy, Jose Ortiz Gonzalez, Saeed Jahdi, Olayiwola Alatise, Ruizhu Wu   +10 more
core   +1 more source

Operational control and protection implications of fault current limitation in distribution networks [PDF]

, 2009
Rising short-circuit fault current levels is one of the problems associated with the increased presence of distributed generation (DG) in electrical networks.
Blair, S.M., Burt, Graeme M., Singh, N.K., Booth, C.D.   +3 more
core   +3 more sources

Development of Bus and Line Control Method for Short-Circuit Current Reduction Using Genetic Programming

Energies, 2022
In this study, genetic programming (GP) is used for optimizing bus and line separation methods to reduce the short-circuit current. Expanding power systems led to intensive electric power and more transmission lines, reducing the grid impedance.
Dabin Son, Sangwook Han
doaj   +1 more source

The energetics of gas flow and contact erosion during short circuit arcing [PDF]

, 2004
The processes governing the movement of short circuit arcs in circuit breakers are complex and variable and the detailed understanding of these processes is incomplete.
Weaver, P.M., Pechrach, K., McBride, J.W.   +2 more
core   +1 more source

Characteristics of Short-Circuit Current in Distribution Network with Doubly-Fed Wind Power System

Shanghai Jiaotong Daxue xuebao, 2023
The doubly-fed induction generator (DFIG) is connected to the distribution network as a distributed power source, which turns a radial single power supply system into a dual power supply system and changes the topology of the distribution network. When a
XI Xinze, XING Chao, QIN Risheng, HE Tingyi, HE Peng, MENG Xian, CHENG Chunhui
doaj   +1 more source

Impact of the Short-Circuit Current Value on the Operation of Overhead Connections in High-Voltage Power Stations

Energies, 2023
This paper focuses on determining the effects of short-circuit current values on the operation of high-voltage substations. The analyses performed focused on the dynamic and thermal effects on the short-circuit current for different input data ...
Łukasz Kozarek, Hubert Cichecki, Mateusz Bogacki, Mykhailo Tyryk, Michał Szulborski, Sebastian Łapczyński, Łukasz Kolimas, Desire Rasolomampionona, Andrzej Lange, Przemysław Berowski, Przemysław Sul, Maciej Owsiński   +11 more
doaj   +1 more source

Influence of the HTS Winding Tape on Limiting the Transient Currents in Superconducting Transformers

Energies, 2022
The article presents an extended computer model of a HTS (high temperature superconducting) 21 MVA 70/10.5 kV transformer with severalfold compound windings, based on a verified PSpice model of 10 kVA transformer with single windings. Two superconducting
Paweł Surdacki, Łukasz Woźniak
doaj   +1 more source