Results 1 to 10 of about 589 (136)
A novel controllable capacitor commutation based superconducting hybrid direct current breaker [PDF]
Scientific ReportsFeaturing low power loss and high reliability, voltage source converter medium voltage direct current (VSC-MVDC) systems have been widely employed for grid-tied renewable energy applications.
Yang Xu +5 more
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Improved assembly DC circuit breaker based on resonant current injection. [PDF]
PLoS ONEDC circuit breakers (DCCBs) with high breaking capacity and low cost are necessary for quick fault clearance in DC networks. The assembly DC circuit breakers (ADCCBs) have a main breaking section (MBS) and a sub-breaking sections (SBS) for each line ...
Puyi Cui +5 more
doaj +2 more sources
A Review on Hybrid Circuit Breakers for DC Applications
IEEE Open Journal of the Industrial Electronics Society, 2023 Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points.
Ana Rafaela Figueiredo Bento +2 more
doaj +1 more source
A Review on Thomson Coil Actuators in Fast Mechanical Switching
Actuators, 2022 With the rapid development of DC power systems and the increasing demand for DC circuit breakers, electromagnetic repulsive drives-based Thomson coil actuators (TCA) are widely investigated to provide the high-speed actuating required for ultra-fast ...
Mohmmad Al-Dweikat +5 more
doaj +1 more source
Overvoltage and insulation coordination of flexible DC distribution network with DC circuit breaker
电力工程技术, 2023 With the continuous application and popularization of distributed energy, DC power distribution will become the mainstream form of future power distribution system.
LIU Shuhan +5 more
doaj +1 more source
Simulation study on arc motion process of DC miniature circuit breakers
AIP Advances, 2023 Based on the theory of magnetohydrodynamics, a mathematical model of air arc in the arc extinguishing chamber of a DC miniature circuit breaker was established. By coupling external circuit characteristics and contact movement process, the motion process
Dezhi Xiong +3 more
doaj +1 more source
An Overview and Minimum Fault Ramp Rate Analysis of Impedance Based Circuit Breaker Topologies
IEEE Access, 2023 In the advent of recent developments in a higher efficiency Direct Current (DC) system, the DC microgrid proves to be a permissible future to match the load demand with distributed power generation.
J. Mohamed Abdullah, V. Sumathi
doaj +1 more source
Contact arc time – important parameter of DC high-speed circuit-breakers [PDF]
MATEC Web of Conferences, 2019 The parameters of DC high-speed circuit-breakers (HSCB) and test methods are specified in the standards. These standards define requirements of the circuit breakers opening time and the total breaking time.
Rojek Artur, Skrzyniarz Marek
doaj +1 more source
The Journal of Engineering, 2019 In hierarchically connected UHV DC projects, the 1000 kV AC filter sub-bank in converter station is provided with two 500 kV circuit breakers. To determine the test DC component decay time constant when breakers break short-circuit current, relevant DC ...
Li Zhenqiang +3 more
doaj +1 more source
AIP Advances, 2023 The DC vacuum circuit breaker plays an important role in the quench protection system of the Comprehensive Research Facility for Fusion Technology (CRAFT) project.
Xingguang Hu +5 more
doaj +1 more source