Results 71 to 80 of about 16,999 (226)

DC fault protection of multi-terminal HVDC systems using DC network partition and DC circuit breakers [PDF]

open access: yes, 2015
This paper concentrates on using fast acting DC Circuit Breakers (DCCBs) at strategic locations to allow the entire Multi-terminal HVDC (MTDC) system to be operated interconnected but partitioned into islanded DC network zones following faults.
Bell, Keith, Rahman, Md Habibur, Xu, Lie
core  

Influence of Arc Faults on Pressure Production Characteristics in AC Turret of UHV Transformers

open access: yesHigh Voltage, EarlyView.
ABSTRACT The overpressure caused by arc fault in the oil tank can lead to a transformer explosion. Since the AC turret of transformers serves to connect the transformer windings with the AC busbar, the arc current can be extremely high if an earth fault arc occurs leading to potentially hazardous pressure.
Yuhang Li   +4 more
wiley   +1 more source

Modular multilevel converter based LCL DC/DC converter for high power DC transmission grids [PDF]

open access: yes, 2015
This paper presents a modular multilevel converter (MMC) based DC/DC converter with LCL inner circuit for HVDC transmission and DC grids. Three main design challenges are addressed.
Aboushady, Ahmed   +2 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

Social Equity Practices in Public Financial Management: A Conceptual Review and Proposed Reforms

open access: yesPublic Administration, EarlyView.
ABSTRACT Equity has been at the core of public finance going at least as far back as 1776 when Adam Smith included it as one of four canons of a good tax in his classic An Inquiry into the Nature and Causes of the Wealth of Nations (Tax Project Institute 2025).
John R. Bartle   +2 more
wiley   +1 more source

Advancements in Z-Source Solid-State Circuit Breakers for Enhanced Protection of DC Distribution Networks: A Comprehensive Review

open access: yesActive and Passive Electronic Components
DC technologies constitute essential components within the scope of DC distribution networks. All DC networks confront inherent threats, such as DC short-circuit faults, necessitating robust protective measures.
Sabah Daniar   +1 more
doaj   +1 more source

Series Connection of LCC and Full Bridge MMC With DC Fault Ride‐Through Capability for Lightweight HVDC Transmission

open access: yesEngineering Reports, Volume 8, Issue 4, April 2026.
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang   +7 more
wiley   +1 more source

Bridging Plasma Dynamics and Reaction Engineering: A Framework for Predictable CO2 Conversion in Rotating Non‐Thermal Arcs

open access: yesChemistry–Methods, Volume 6, Issue 3, March 2026.
This study combines theoretical and experimental approaches to systematically link plasma dynamics with reaction engineering. A novel reactor design with laminar gas flow and magnetically induced nonthermal plasma rotation enables precise determination of residence times and effective plasma volumes.
Samuel Jaro Kaufmann   +5 more
wiley   +1 more source

Auxiliary Branch for Hybrid DC Circuit Breaker in Flexible DC Grid to Reduce Fault Breaking Time and Arrester Capacity Demand

open access: yesIEEE Access
Considering the voltage source characteristics of the converters in the flexible DC grid, the current-limiting reactors are usually placed on the DC line terminals to limit the fault current rising speed.
Yingqing Ma   +5 more
doaj   +1 more source

Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]

open access: yes, 2012
The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme   +4 more
core   +1 more source

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