Results 51 to 60 of about 39,891 (249)
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
High Speed Solid State Circuit Breaker [PDF]
, 1993 The U.S. Army Research Laboratory, Fort Monmouth, NJ, has developed and is installing two 3.3 MW high speed solid state circuit breakers at the Army's Pulse Power Center. These circuit breakers will interrupt 4160V three phase power mains in no more than
Podlesak, Thomas F.
core +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT Our planet faces a critical crisis, with pollution, resource depletion and biodiversity loss surpassing sustainable limits. Businesses must address these challenges, with the circular economy and Industry 4.0 offering transformative potential through closed‐loop systems, regenerative solutions and advanced technologies.
Agnes Toth‐Peter +3 more
wiley +1 more source
Circuit Level Model of Miniature Circuit Breakers [PDF]
IEEE Transactions on Power Delivery, 2018 We present a black-box model of miniature circuit breakers having a realistic physical background. In compliance with basic physics, engineering know-how and magneto-hydro-dynamics arc simulations, two sets of differential-algebraic equations are derived to model air plasma chemical dynamics and its interaction with breaker's physical environment ...
Federico Bizzarri +3 more
openaire +2 more sources
, 2015 The U.S. has had market-wide circuit breakers in place since the late 1980s, and individual stock circuit breakers were put in place more recently. Given the increasing volatility in Chinese markets, they are now following suit.
Dolvin, Steven D.
core +1 more source
Ultra‐High‐Efficiency On‐Chip CO2 Conversion by Nanosecond Self‐Pulsing Micro‐Plasma Devices
Carbon Energy, EarlyView.A micro‐plasma chip with sub‐10‐μm electrode gaps is introduced for efficient CO2‐to‐CO conversion. The device self‐converts a DC power supply into nanosecond pulses, producing field‐emission electrons that vibrationally excite CO2, driving dissociation via the ladder‐climbing mechanism. A scaled‐up chip array achieves 30% single‐pass conversion and 50%
Guangyu Sun +5 more
wiley +1 more source
EnergiesThis article describes the development of current sensors used in DCU-type high-speed circuit breakers. DCU-type circuit breakers use the principle of turning off a constant short-circuit current by means of countercurrent.
Łukasz Nowak, Piotr Borkowski
doaj +1 more source
, 2013 Following the Flash Crash in 2010, the SEC implemented new trading curbs. Following continued discussion, these curbs have been updated once again--for both individual stocks and the market as a whole.
Dolvin, Steven D.
core +1 more source
Energy Science &Engineering, EarlyView.A real‐time, data‐driven framework detects and classifies photovoltaic array faults using edge sensing and server‐side machine learning. Ensemble tree models achieve near‐perfect accuracy with low latency, enabling practical, low‐cost deployment for reliable PV monitoring and intelligent maintenance.
Premkumar Manoharan +4 more
wiley +1 more source
System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]
, 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