Results 21 to 30 of about 325 (124)

Evaluation Tests of Metal Oxide Varistors for DC Circuit Breakers

open access: yesIEEE Open Access Journal of Power and Energy, 2022
With emerging technologies and products in power semiconductors and ultrafast mechanical switches, direct-current circuit breakers (DCCBs) have been developing rapidly.
Chunmeng Xu   +7 more
doaj   +1 more source

Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends [PDF]

open access: yes, 2017
Circuit breakers (CBs) are the main protection devices for both alternating current (AC) and direct current (DC) power systems, ranging from tens of watts up to megawatts.
Alan J. Watson   +8 more
core   +1 more source

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

open access: yes, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden   +11 more
core   +1 more source

Research on Safety Technology for High-Speed Interruption for Mining Flameproof Movable Substation

open access: yesEnergies, 2020
Due to the working condition of low-voltage cabling from the mining flameproof movable substation to the loads of the mining face being poor, it is easy to cause various external mechanical damages to the cable sheaths.
Yanwen Wang   +3 more
doaj   +1 more source

Turboelectric distributed propulsion protection system design trades [PDF]

open access: yes, 2014
The NASA N3-X blended-wing body with turboelectric distributed propulsion concept is being studied to achieve N+3 goals such as reduced noise, emissions, and improved energy efficiency. The electrical distribution system is cryogenic in order to maximize
Armstrong, M.   +5 more
core   +1 more source

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]

open access: yes, 2011
A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme   +3 more
core   +1 more source

Passive Clamping Circuit for Reduced Switch Count in Solid State Circuit Breakers [PDF]

open access: yes, 2021
DC Solid-State Circuit Breakers (SSCB) play an important role in the protection of DC and hybrid AC/DC systems. As they operate mostly in on-state, the use of wide-bandgap devices, with low conduction losses, is an attractive solution. These devices need
Castelo Branco Camurca Neto, Luis Juarez   +2 more
core   +1 more source

Validation of fast and selective protection scheme for an LVDC distribution network [PDF]

open access: yes, 2016
Low Voltage Direct Current (LVDC) distribution systems are one of the emerging technologies to recently attract attention for more efficient use of energy, and wider uptake of distributed renewables and energy storage. They do however present significant
Burt, Graeme M.   +3 more
core   +1 more source

Architecture, Voltage and Components for a Turboelectric Distributed Propulsion Electric Grid [PDF]

open access: yes, 2015
The development of a wholly superconducting turboelectric distributed propulsion system presents hide unique opportunities for the aerospace industry.
Armstrong, Michael J.   +6 more
core   +3 more sources

A novel protection scheme for an LVDC distribution network with reduced fault levels [PDF]

open access: yes, 2017
Low Voltage Direct Current (LVDC) distribution is one of the new promising technologies that have the potential to accelerate the wider integration of distributed renewables.
Burt, Graeme   +2 more
core   +1 more source

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