Results 101 to 110 of about 20,648 (304)

Logic-controlled solid state switchgear for 270 volts dc [PDF]

open access: yes
A feasibility study to design and demonstrate solid state switchgear in the form of circuit breakers and a power transfer switch is described. The switchgear operates on a nominal 270 V dc circuit and controls power to a load of up to 15 amperes.
Buchanan, E. E., Jr.   +2 more
core   +1 more source

Effect of distributed energy systems on the electricity grid [PDF]

open access: yes, 2011
A feasibility study is being carried out at Ecotricity into a distributed energy storage system comprising Energy stores (batteries) placed at consumer level (in customer’s homes).
L., MacManus, M., Brown
core  

Regionally Localized Electrolyte Engineering via UV Crosslinking for Stable Ether–Carbonate Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a regionally localized electrolyte (RLE) that spatially separates ether‐ and carbonate‐based functions to stabilize both Li metal and high‐voltage cathodes. An immobilized ether‐rich layer directs Li+ transport, activates LiNO3 locally, and forms a uniform LiF‐rich SEI, enabling lower overpotential, uniform deposition, and long ...
Eunbin Lim   +4 more
wiley   +1 more source

High Pressure Densification Investigation of Li3PS4 and Li6PS5Cl Solid Electrolytes using Combine X‐Ray Diffraction, X‐Ray Absorption Tomography and Ionic Measurement

open access: yesAdvanced Functional Materials, EarlyView.
We used multiple analytical techniques at the Psiché beamline, Synchrotron Soleil, and at D20 instrument in Institut Laue Langevin, to study the densification of thiophosphate solid electrolytes Li3PS4 and Li6PS5Cl. Our combined X‐ray diffraction, absorption tomography, absorption density, neutron power diffraction, and ionic conductivity analyses ...
Oskar Thompson   +11 more
wiley   +1 more source

Mechanical performance degradation modelling and prognosis method of high‐voltage circuit breakers considering censored data

open access: yesIET Science, Measurement & Technology
Due to the untimely deployment of sensors and the early retirement of high‐voltage circuit breakers, life‐cycle data is missing, leading to an inability to accurately predict the mechanical performance degradation trend.
Hongshan Zhao, Yanan Qian, Yuehan Qu
doaj   +1 more source

Assembly of Cell‐Seeded 3D Printed Hydrogel Modules with Perfusable Channel Networks

open access: yesAdvanced Functional Materials, EarlyView.
Macroscale assembly was utilized to prepare perfusable tissue constructs from individually 3D printed hydrogel modules with embedded branched channel networks and port arrays for cell seeding. Novel multi‐material bioreactors were fabricated to facilitate the gluing of individual modules and the perfusion culture of assembled modular constructs seeded ...
Zachary J. Geffert   +10 more
wiley   +1 more source

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh   +12 more
wiley   +1 more source

Research on fault identification of high-voltage circuit breakers with characteristics of voiceprint information

open access: yesScientific Reports
High voltage circuit breakers are one of the core equipment in power system operation, and the voiceprint signals generated during operation contain extremely rich information.
Sihao Wang, Yongrong Zhou, Zhaoxing Ma
doaj   +1 more source

A New Test Method of Circuit Breaker Spring Telescopic Characteristics Based Image Processing

open access: yesE3S Web of Conferences, 2018
This paper applied computer vision technology to the fatigue condition monitoring of springs, and a new telescopic characteristics test method is proposed for circuit breaker operating mechanism spring based on image processing technology.
Huang Huimin   +4 more
doaj   +1 more source

International White Book on DER Protection : Review and Testing Procedures [PDF]

open access: yes, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek   +7 more
core  

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