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Current–Time Characteristics of Resistive Superconducting Fault Current Limiters [PDF]

open access: yesIEEE Transactions on Applied Superconductivity, 2012
Superconducting fault current limiters (SFCLs) may play an important role in power-dense electrical systems. Therefore, it is important to understand the dynamic characteristics of SFCLs. This will allow the behavior of multiple SFCLs in a system to be fully understood during faults and other transient conditions, which will consequently permit the ...
Blair, Steven Macpherson   +2 more
openaire   +4 more sources

Short-Circuit Analysis of DER-Based Microgrids in Connected and Islanded Modes of Operation

open access: yesEnergies, 2021
Since microgrids should be able to smoothly operate in two distinct modes—grid-connected and islanded, their fault currents can widely fluctuate depending on the operational mode. When the microgrid is connected to the grid, the highest fault current, by
Nikola Simic   +2 more
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

open access: yesDesigns, 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   +6 more
doaj   +1 more source

Analysis of the Influence of the Insulation Parameters of Medium Voltage Electrical Networks and of the Petersen Coil on the Single-Phase-to-Ground Fault Current

open access: yesEnergies, 2021
Settings of protection are essential to ensure the sensitivity and selectivity needed to detect defects. Making the correct settings requires the calculation of the fault currents with as little error as possible.
Dumitru Toader   +4 more
doaj   +1 more source

Research on Fault Current Controller of DC Microgrid

open access: yes南方能源建设, 2023
[Introduction] With the rapid development of AC/DC distribution networks and distributed generation technology, the role of DC microgrids in distribution networks is becoming increasingly important and will become an important component of future ...
Cong LIN, Xiangfeng LI, Fang GUO
doaj   +1 more source

Dynamic Loading Effect on Fault Current and Arc Flash for a Coordinated Substation

open access: yesIEEE Access, 2021
Due to load growth and various load types within the service territory, utilities need to enhance the utilization of substations. In any case, towards the coordinated substation design, the utilization of the transformers’ most total capacity ...
A. B. M. Shafiul Azam   +3 more
doaj   +1 more source

Inductive Fault Current Limiters in VSC-HVDC Systems: A Review

open access: yesIEEE Access, 2020
Fast emerging fault current levels in high voltage direct current (HVDC) systems has always been a significant obstacle to building a safer and more reliable grid. Inductive fault current limiters (FCLs), compared with its resistive counterpart, are very
Hang Zhou   +3 more
doaj   +1 more source

Study on Malfunction of OCR Due to Penetration of DER into Power Distribution System with SFCL

open access: yesEnergies, 2023
Due to the demand for eco-friendly energy, distributed energy resources (DERs) using renewable energy have increased. The increase in DER has caused the power system to become more complex and caused problems in the protection system.
Min-Ki Park, Sung-Hun Lim
doaj   +1 more source

Short-Circuit Fault Current Modeling of a DC Light Rail System with a Wayside Energy Storage Device

open access: yesEnergies, 2022
This paper proposes a simulation model to calculate short-circuit fault currents in a DC light rail system with a wayside energy storage device. The simulation model was built in MATLAB/Simulink using the electrical information required to define a ...
Petru Valentin Radu   +3 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

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