Results 81 to 90 of about 19,775 (311)
DC fault protection structures at a DC-link node in a radial multi-terminal high-voltage direct current system [PDF]
, 2016 In a multi-terminal HVDC system, DC circuit breakers (DCCBs) are conventionally connected in a star-configuration to enable isolation of a DC fault from the healthy system parts.
Fletcher, John E. +3 more
core +1 more source
Bio‐Inspired Molecular Events in Poly(Ionic Liquids)
Advanced Functional Materials, EarlyView.Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley +1 more source
A Novel Discrete Branch Bidirectional Solid-State Circuit Breaker Based on Mixture Device
CES Transactions on Electrical Machines and SystemsSolid state circuit breakers (SSCBs) based on full-controlled devices such as IGBT and based on half-controlled devices such as thyristor have their respective advantages.
Qingpeng Zeng +4 more
doaj +1 more source
Three-phase, high-voltage, high-frequency distributed bus system for advanced aircraft [PDF]
, 1983 A three phase, high voltage, high frequency distributed bus system for advanced aircraft is discussed. A system model is given. Available components are described.
Finke, R. C.
core +1 more source
Types of Circuit Breaker and its Application in Substation Protection [PDF]
, 2017 Power system consists of the generation, transmission, distribution, and substation. All the power system component requires suitable protection devices as the protection system to protect the system during fault occur. In this paper, the circuit breaker
bin Hamzah, Nur Iskandar +6 more
core +2 more sources
Advanced Functional Materials, EarlyView.MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler +3 more
wiley +1 more source
Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management
Advanced Functional Materials, EarlyView.A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse +16 more
wiley +1 more source
Delays in Protection Devices and Their Effects on Selectivity: The Reaction Time Gap
IEEE Open Journal of Power ElectronicsThis Paper investigates how the internal delays of circuit breakers until the limitation of the fault current affect the selectivity of a low-voltage direct current (LVDC)-grid under short-circuit conditions.
Johannes Gehring +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.By mimicking the ion‐accelerating effect of ion channel receptors in neuron membranes, a biomaterials‐based ionic hydrogel (BIH) is developed, which offers a high ionic conductivity of 7.04 S m−1, outperforming conventional chitosan, cellulose, agarose, starch, and gelatin based ionic hydrogels.
Baojin Chen +7 more
wiley +1 more source
TESTBED DESIGN AND DEVELOPMENT FOR MEDIUM VOLTAGE MW SCALE DC CIRCUIT BREAKER [PDF]
Navy propulsion and electrical power systems are evolving as improved technologies pave the way for increased capabilities with medium voltage direct current power distribution systems.
Carter, Brandon J.
core +1 more source