Results 31 to 40 of about 3,615 (71)

Investigating Small-Scale DER Impact on Fault Currents and Overcurrent Protection Coordination in Distribution Feeders Under Brazilian Technical Standards

open access: yesElectricity
This paper investigates the impacts of small-scale distributed energy resources (DERs) on fault currents and overcurrent protection (OCP) coordination in distribution feeders, considering the Brazilian regulatory framework.
Murillo Cobe Vargas   +3 more
doaj   +1 more source

Enhanced piezoelectric properties of (Ba0.3Bi0.7)(Mg0.05Fe0.6Ti0.35)O3 piezoelectric ceramics with high Curie temperature [PDF]

open access: yesJournal of Advanced Dielectrics, 2014
(Ba0.3Bi0.7)(Mg0.05Fe0.6Ti0.35)O3 ceramics were either doped with vanadium or sintered in calcined powder with the same composition. Compared to an undoped ceramic sintered without the calcined powder, both ceramics showed reduced leakage current ...
Ichiro Fujii   +3 more
doaj   +1 more source

Photocatalytic degradations of JWS-type kinetics

open access: yesJournal of Advanced Dielectrics, 2021
Photocatalytic degradation kinetics of Jurlewicz–Weron–Stanislavsky (JWS) type has been identified. Experimental data are taken from previous published works, and fitted with the JWS relaxation function as well as that of the Havriliak–Negami (HN) model.
C. L. Wang
doaj   +1 more source

Techno-Economic Assessment of Fixed and Variable Reactive Power Injection Using Thyristor-Switched Capacitors in Distribution Networks

open access: yesElectricity
This paper presents a hybrid optimization framework for solving the optimal reactive power compensation problem in medium-voltage smart distribution networks.
Oscar Danilo Montoya   +2 more
doaj   +1 more source

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
Polycrystalline La-doped BaTiO3 (Ba(1-x)Lax TiO3) [x=0,0.0005,0.001,0.003] ceramics (denoted as BTO,BLT1,BLT2,BLT3) were synthesized by conventional solid-state reaction method and characterized by X-ray diffraction (XRD), scanning electron microscopy ...
Venkata Sreenivas Puli   +3 more
doaj   +1 more source

Dielectric tunable characteristics of compositional-gradient BaTi1−xSnxO3 thin films

open access: yesJournal of Advanced Dielectrics, 2021
Compositional-gradient BaTi1−xSnxO3 thin films on Pt(100)/Ti/SiO2/Si substrates are fabricated with sol–gel using spin coating. All of the structures of the prepared thin films are of single-phase crystalline perovskite with a dense and crack-free ...
Chenjing Wu, Manwen Yao
doaj   +1 more source

Heuristic-Based Scheduling of BESS for Multi-Community Large-Scale Active Distribution Network

open access: yesElectricity
The integration of battery energy storage systems (BESSs) within active distribution networks (ADNs) entails optimized day-ahead charge/discharge scheduling to achieve effective peak shaving.The primary objective is to reduce peak demand and mitigate ...
Ejikeme A. Amako   +2 more
doaj   +1 more source

Effects of barium substitution on the sintering behavior, dielectric properties of Ca2Nb2O7 ferroelectric ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
Barium-doped Ca2Nb2O7 ceramics were prepared in the form of Ca2−xBaxNb2O7 (0 ≤x≤ 0.6) by solid-state reaction. The solubility limit of barium in Ca2Nb2O7 was found to be x=0.4 based on X-ray diffraction and Raman spectroscopy analysis.
Chunchun Li   +3 more
doaj   +1 more source

Effects of polymorphic form and particle size of SiO2 fillers on the properties of SiO2–PEEK composites

open access: yesJournal of Advanced Dielectrics, 2021
The effects of polymorphic form and particle size of SiO2 fillers on the dielectric, mechanical and thermal properties of SiO2–Polyetheretherketone (SiO2–PEEK) composites were investigated in this paper. Strong low frequency (
Peng Jie Xue   +2 more
doaj   +1 more source

Modeling the Tripping Behavior of Fuses Based on Data Sheet Characteristics and Conductor Material Properties

open access: yesElectricity
Accurately simulating fuses is challenging because the fuse behavior is affected by a variety of thermal and electrical factors. This paper presents a SPICE fuse model and its parameterization procedure. The model mimics the physical behavior of the time–
Manuel Seidenath, Martin Maerz
doaj   +1 more source

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