Results 61 to 70 of about 433 (184)
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.A new evolutionary search algorithm based on improved Particle Swarm Optimisation (PSO) is introduced in this study to estimate the phasor. The performance has been evaluated through extensive simulations considering transient components, harmonics, and frequency changes in noiseless and noisy conditions.
Seyedeh Mina Abed Shiadeh +2 more
wiley +1 more source
Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.Abstract Microstructure homogeneity and grain size reduction are needed to ensure the current uniformity and reliability required in metal oxide varistors for DC circuit breakers. Cold sintering (CS)–a low‐temperature digestive liquid and high‐pressure densification process–has previously shown reduced grain growth, but it is not clear how the lower ...
Kayla Y. Chuong +5 more
wiley +1 more source
Fabrication and electrical characteristics of flash-sintered SiO2-doped ZnO-Bi2O3-MnO2 varistors
Journal of Advanced Ceramics, 2020 The dense ZnO-Bi2O3-MnO2-xSiO2 (ZBMS) varistors for x = 0, 1, 2, 3 wt% were fabricated by flash sintering method under the low temperature of 850 °C within 2 min. The sample temperature was estimated by a black body radiation model in the flash sintering
Pai Peng +7 more
doaj +1 more source
International Journal of Energy Research, Volume 2026, Issue 1, 2026.Automatic generation control (AGC) is vital for preserving frequency and power balance in modern interconnected power systems (IPSs), which are increasingly challenged by nonlinear dynamics, parameter uncertainties, and unpredictable load variations.
Getaneh Mesfin Meseret, Mohammad Ghiasi
wiley +1 more source
Concept Proof of Voltage Suppression across IGBT Application for Fuse‐Current‐Limiting Hybrid DCCBs
IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 12, Page 1973-1981, December 2025.Abstract DC power systems require reliable and cost‐effective DC circuit breakers (DCCBs). In a previous study, we introduced a hybrid DCCB featuring a current‐limiting fuse, insulated gate bipolar transistor (IGBT), and a varistor connected in parallel.
Yuki Okegawa +8 more
wiley +1 more source
Influence of processing on microstructure and electrical characteristics of multilayer varistors
Journal of Advanced Ceramics, 2019 The paper reports on the influence of processing on microstructure and electrical properties of multilayer varistors based on zinc oxide doped with Bi2O3, Sb2O3, Co2O3, MnO, Cr2O3, B2O3, and SiO2.
D. Szwagierczak, J. Kulawik, A. Skwarek
doaj +1 more source
Transformers Magazine, 2022 Current transformers are used to monitor large currents within power grids and power stations, producing a current in the device’s secondary winding that is proportional to the current flowing in its primary winding. Varistors are used to protect current transformers by preventing an open circuit condition if the secondary is disconnected, which can ...
Galvin, Dr. Tom, Coll, Dominic
openaire +2 more sources
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2014 Prolonged exposure of zinc oxide varistors to the electrical load leads to current-voltage characteristics (CVC) deformation, which is associated with a change in the height and width of the intergranular barriers, which are the main structural element ...
A. S. Tonkoshkur, A. V. Ivanchenko
doaj +1 more source
Cold-Sintered ZnO Ceramic Composites Co-Doped with Polytetrafluoroethylene and Oxides. [PDF]
Molecules, 2023 Xiao Y +7 more
europepmc +1 more source
A Hardware System for Synchronous Processing of Multiple Marine Dynamics MEMS Sensors. [PDF]
Micromachines (Basel), 2022 Jing J +7 more
europepmc +1 more source