Results 11 to 20 of about 159,486 (302)

Experimental study on short-circuit current characteristics of a photovoltaic system with low voltage ride through capability under a symmetrical fault

Energy Reports, 2022
Large number of photovoltaic (PV) power plants connected to a power grid can bring significant impacts to fault currents and the operation of protection systems.
Shuai Yuan, Bao-Feng Yang, Jian-Ying Zhang   +2 more
doaj   +1 more source

A zero-crossing point prediction algorithm of short-circuit current for mine-used phase-controlled switching

Gong-kuang zidonghua, 2020
The existing zero-crossing point prediction algorithms of short-circuit current have some problems, such as complex calculation and big error. For three-phase short-circuit fault of coal mine power supply system, a zero-crossing point prediction ...
YU Shuohang, RONG Xiang, YANG Fan, WEI Lipeng   +3 more
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

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

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

A change-detection algorithm for short-circuit fault detection in closed-loop AC drives [PDF]

, 2013
This paper deals with an on-line method for turn-to-turn short-circuit fault detection in low-voltage permanent-magnet synchronous machine drives. Due to the closed-loop control, the fault effects are reflected in the voltage.
Johan Gyselinck, Gyselinck, Johan, KESTELYN, Xavier, Semail, Eric, Eric Semail, Yves Mollet, Meinguet, Fabien, Kestelyn, X., Mollet, Yves, Fabien Meinguet, Xavier Kestelyn   +10 more
core   +1 more source

Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]

, 2010
An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G., Cross, K.J., A. Balestrero, J. W. McBride, G. Tribulato, K. J. Cross, L. Ghezzi, McBride, J.W., Balestrero, A., Ghezzi, L.   +9 more
core   +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

Analysis of short-circuit transients in the LHC main dipole circuit [PDF]

, 2019
After the occurrence and detection of a short circuit to ground in the LHC main dipole circuit, a fast power abort is triggered and the current in the circuit starts decaying semi-exponentially from a maximum value of 11.85 kA to zero, with a time ...
Maciejewski, M, Verweij, A P, Charifoulline, Z, Maciejewski, M., Verweij, A.P., Charifoulline, Z., Salm, C, Annema, A. J., Schmitz, J, Salm, C., Liakopoulou, A, Liakopoulou, A., Schmitz, J., Bortot, L, Prioli, M, Ravaioli, E., Verweij, A. P., Annema, A J, Ravaioli, E, Prioli, M., Annema, A.J., Bortot, L.   +21 more
core   +1 more source

Arc motion and gas flow in current limiting circuit breakers operating with a low contact switching velocity [PDF]

, 2002
Arc motion in low voltage (240 VAC) high current (10/sup 3/-10/sup 4/A.) current limiting-circuit breakers is dominated by arc root mobility. The mobility is influenced by the gas flow and gas composition in the contact region, but there is little ...
Weaver, P.M., Pechrach, K., McBride, J.W.   +2 more
core   +1 more source