Results 61 to 70 of about 479 (183)

Calculation model by Voronoi network and verification of zinc oxide varistor considering conduction mechanism

International Journal of Ceramic Engineering & Science
This paper investigates the impact of the microstructure of zinc oxide varistor ceramics on their electrical properties. The microstructure of varistor was characterized by Voronoi network, and the relationship between microstructure and electrical ...
Xiao Lei, Xin Ning, Peng Liu, Pengfei Meng, Yue Yin, Jingke Guo   +5 more
doaj   +1 more source

Research of Controlled Components on PZT-ZnO-Based Multifunctional Electronic Ceramics with Piezoelectricity and Varistor Behaviors

Ceramics
To synergistically integrate piezoelectric and varistor functionalities in a single material, PNN-PZT piezoelectric powder (abbreviated as P) and ZnO-based varistor powder (abbreviated as Z) were utilized to fabricate PZT-ZnO composite ceramics (denoted ...
Yuying Wang, Chaoyang Liu, Yanping Tan, Songsong Zhang, Ting Zhu, Deyi Zheng, Xingchao Tian   +6 more
doaj   +1 more source

Engenharia de microestrutura em varistor à base de ZnO: evidências de homogeneidade e correlação com reações químicas Microstructure engineering in the ZnO based varistor: evidence of homogeneity and correlation with chemical reactions

Cerâmica, 2005
A influência de reações químicas específicas sobre o desenvolvimento microestrutural em varistores à base de ZnO é abordada a partir de um enfoque inovador.
M. A. L. Nobre, A. N. C. Dias, A. M. O. A. Balan, S. Lanfredi   +3 more
doaj   +1 more source

Three‐Level NF‐TDN Controller for AGC in Thermal‐Hydro‐Gas Power Systems Integrated With TCPS Under Nonlinear Conditions

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

Nonohmic behavior of SnO2.MnO2-based ceramics

Materials Research, 2003
The present paper describes the nonohmic behavior of the SnO2.MnO-based system and analyzes the influence of the sintering time and the Nb2O5 concentration on this system's electrical properties.
Marcelo O. Orlandi, Paulo Roberto Bueno, Edson Roberto Leite, Elson Longo   +3 more
doaj   +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, Hu Long, Yubin He, Shungo Zen, Nozomi Takeuchi, Wataru Ohnishi, Yusuke Nakano, Naoto Kodama, Yuki Inada   +8 more
wiley   +1 more source

Analysis of the failure mechanism of ZnO varistors influenced by high‐resistance media based on multi‐field coupling simulation

High Voltage, Volume 10, Issue 3, Page 673-679, June 2025.
Abstract This study focuses on the distribution of high‐resistance media (pores and spinels) within ZnO $\text{ZnO}$ varistors and explores the mechanical and electrical failure mechanisms of varistors under different pulse actions. Micro‐CT technology revealed that the proportion of high‐resistance media in the edge area is much higher than in the ...
Pengfei Meng, Yue Yin, Lei Wang, Jingke Guo, Zerui Li, Kai Zhou, Guangya Zhu, Yefei Xu   +7 more
wiley   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

High Voltage, Volume 10, Issue 3, Page 546-554, June 2025.
Abstract Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on reverse blocking integrated gate commutated thyristor, which can utilise two methods for ...
Zongze Wang, Zhanqing Yu, Lu Qu, Zhichang Yuan, Kangsheng Cui, Jian Shi, Biao Zhao, Rong Zeng   +7 more
wiley   +1 more source

Cold-Sintered ZnO Ceramic Composites Co-Doped with Polytetrafluoroethylene and Oxides. [PDF]

Molecules, 2023
Xiao Y, Yang Y, Kang S, Li Y, Hou X, Ren C, Wang X, Zhao X.   +7 more
europepmc   +1 more source

A Bibliometric and Comprehensive Review on Condition Monitoring of Metal Oxide Surge Arresters. [PDF]

Sensors (Basel), 2023
Zacarias TG, Sant'Ana WC.
europepmc   +1 more source